1Friday April 10, 2015 guy@alum.mit.edu 2 Summary for 4.7.4 tcpdump release 3 RPKI to Router Protocol: Fix Segmentation Faults and other problems 4 RPKI to Router Protocol: print strings with fn_printn() 5 wb: fix some bounds checks 6 7Wednesday March 11, 2015 mcr@sandelman.ca 8 Summary for 4.7.3 tcpdump release 9 Capsicum fixes for FreeBSD 10 10 11Tuesday March 10, 2015 mcr@sandelman.ca 12 Summary for 4.7.2 tcpdump release 13 DCCP: update Packet Types with RFC4340/IANA names 14 fixes for CVE-2015-0261: IPv6 mobility header check issue 15 fixes for CVE-2015-2153, 2154, 2155: kday packets 16 17Friday Nov. 12, 2014 guy@alum.mit.edu 18 Summary for 4.7.0 tcpdump release 19 changes to hex printing of CDP packets 20 Fix PPI printing 21 Radius: update Packet Type Codes and Attribute Types with RFC/IANA names 22 Add a routine to print "text protocols", and add FTP/HTTP/SMTP/RTSP support. 23 improvements to telnet printer, even if not -v 24 omit length for bcp, print-tcp uses it 25 formatting fixes for a bunch of protocols 26 new bounds checks for a number of protocols 27 split netflow 1,6, and 6 dissector up. 28 added geneve dissector 29 CVE-2014-9140 PPP dissector fixed. 30 31Tuesday Sep. 2, 2014 mcr@sandelman.ca 32 Summary for 4.6.2 tcpdump release 33 fix out-of-source-tree builds: find libpcap that is out of source 34 better configure check for libsmi 35 36Saturday Jul. 19, 2014 mcr@sandelman.ca 37 Summary for 4.6.1 tcpdump release 38 added FreeBSD capsicum 39 add a short option '#', same as long option '--number' 40 41Wednesday Jul. 2, 2014 mcr@sandelman.ca 42 Summary for 4.6.0 tcpdump release 43 all of tcpdump is now using the new "NDO" code base (Thanks Denis!) 44 nflog, mobile, forces, pptp, AODV, AHCP, IPv6, OSPFv4, RPL, DHCPv6 enhancements/fixes 45 M3UA decode added. 46 many new test cases: 82 in 4.5.1 to 133 in 4.6.0 47 many improvements to travis continuous integration system: OSX, and Coverity options 48 cleaned up some unnecessary header files 49 Added bittok2str(). 50 a number of unaligned access faults fixed 51 -A flag does not consider CR to be printable anymore 52 fx.lebail took over coverity baby sitting 53 default snapshot size increased to 256K for accomodate USB captures 54 WARNING: this release contains a lot of very worthwhile code churn. 55 56Wednesday Jan. 15, 2014 guy@alum.mit.edu 57 Summary for 4.5.2 tcpdump release 58 Man page fix 59 Fix crashes on SPARC 60 61Monday Nov. 11, 2013 mcr@sandelman.ca 62 Summary for 4.5.1 tcpdump release 63 CREDITS file fixes 64 65Thursday Nov. 7, 2013 mcr@sandelman.ca and guy@alum.mit.edu. 66 Summary for 4.5.0 tcpdump release 67 some NFSv4 fixes for printing 68 fix printing of unknown TCP options, and tcp fast-open 69 fixes for syslog parser 70 some gcc-version-specific flag tuning 71 adopt MacOS deprecation workarounds for openssl 72 improvements to babel printing 73 add OpenFlow 1.0 (no SSL) and test cases 74 GeoNet printer. 75 added STBC Rx support 76 improvements to DHCPv6 decoder 77 clarify which autoconf is needed 78 Point users to the the-tcpdump-group repository on GitHub rather 79 than the mcr repository 80 Add MSDP printer. 81 Fixed IPv6 check on Solaris and other OSes requiring extra 82 networking libraries. 83 Add support for VXLAN (draft-mahalingam-dutt-dcops-vxlan-03), 84 and add "vxlan" as an option for -T. 85 Add support for OTV (draft-hasmit-otv-04). 86 fixes for DLT_IEEE802_11_RADIO datalink types 87 added MPTCP decoder 88 89Saturday April 6, 2013 guy@alum.mit.edu. 90 Summary for 4.4.0 tcpdump release 91 RPKI-RTR (RFC6810) is now official (TCP Port 323) 92 Fix detection of OpenSSL libcrypto. 93 Add DNSSL (RFC6106) support. 94 Add "radius" as an option for -T. 95 Update Action codes for handle_action function according to 96 802.11s amendment. 97 Decode DHCPv6 AFTR-Name option (RFC6334). 98 Updates for Babel. 99 Fix printing of infinite lifetime in ICMPv6. 100 Added support for SPB, SPBM Service Identifier, and Unicast 101 Address sub-TLV in ISIS. 102 Decode RIPv2 authentication up to RFC4822. 103 Fix RIP Request/full table decoding issues. 104 On Linux systems with cap-ng.h, drop root privileges 105 using Linux Capabilities. 106 Add support for reading multiple files. 107 Add MS NLB heartbeat printer. 108 Separate multiple nexthops in BGP. 109 110Wednesday November 28, 2012 guy@alum.mit.edu. 111 Summary for 4.3.1 tcpdump release 112 Print "LLDP, length N" for LLDP packets even when not in verbose 113 mode, so something is printed even if only the timestamp is 114 present 115 Document "-T carp" 116 Print NTP poll interval correctly (it's an exponent, so print 117 both its raw value and 2^value) 118 Document that "-e" is used to get MAC addresses 119 More clearly document that you need to escape or quote 120 backslashes in filter expressions on the command line 121 Fix some "the the" in the man page 122 Use the right maximum path length 123 Don't treat 192_1_2, when passed to -i, as an interface number 124 125Friday April 3, 2012. mcr@sandelman.ca. 126 Summary for 4.3.0 tcpdump release 127 fixes for forces: SPARSE data (per RFC 5810) 128 some more test cases added 129 updates to documentation on -l, -U and -w flags. 130 Fix printing of BGP optional headers. 131 Tried to include DLT_PFSYNC support, failed due to headers required. 132 added TIPC support. 133 Fix LLDP Network Policy bit definitions. 134 fixes for IGMPv3's Max Response Time: it is in units of 0.1 second. 135 SIGUSR1 can be used rather than SIGINFO for stats 136 permit -n flag to affect print-ip for protocol numbers 137 ND_OPT_ADVINTERVAL is in milliseconds, not seconds 138 Teach PPPoE parser about RFC 4638 139 140 141Friday December 9, 2011. guy@alum.mit.edu. 142 Summary for 4.2.1 tcpdump release 143 Only build the Babel printer if IPv6 is enabled. 144 Support Babel on port 6696 as well as 6697. 145 Include ppi.h in release tarball. 146 Include all the test files in the release tarball, and don't 147 "include" test files that no longer exist. 148 Don't assume we have <rpc/rpc.h> - check for it. 149 Support "-T carp" as a way of dissecting IP protocol 112 as CARP 150 rather than VRRP. 151 Support Hilscher NetAnalyzer link-layer header format. 152 Constify some pointers and fix compiler warnings. 153 Get rid of never-true test. 154 Fix an unintended fall-through in a case statement in the ARP 155 printer. 156 Fix several cases where sizeof(sizeof(XXX)) was used when just 157 sizeof(XXX) was intended. 158 Make stricter sanity checks in the ES-IS printer. 159 Get rid of some GCCisms that caused builds to fai with compilers 160 that don't support them. 161 Fix typo in man page. 162 Added length checks to Babel printer. 163 164Sunday July 24, 2011. mcr@sandelman.ca. 165 Summary for 4.2.+ 166 merged 802.15.4 decoder from Dmitry Eremin-Solenikov <dbaryshkov 167 at gmail dot com> 168 updates to forces for new port numbers 169 Use "-H", not "-h", for the 802.11s option. (-h always help) 170 Better ICMPv6 checksum handling. 171 add support for the RPKI/Router Protocol, per -ietf-sidr-rpki-rtr-12 172 get rid of uuencoded pcap test files, git can do binary. 173 sFlow changes for 64-bit counters. 174 fixes for PPI packet header handling and printing. 175 Add DCB Exchange protocol (DCBX) version 1.01. 176 Babel dissector, from Juliusz Chroboczek and Gr��goire Henry. 177 improvements to radiotap for rate values > 127. 178 Many improvements to ForCES decode, including fix SCTP TML port 179 updated RPL type code to RPL-17 draft 180 Improve printout of DHCPv6 options. 181 added support and test case for QinQ (802.1q VLAN) packets 182 Handle DLT_IEEE802_15_4_NOFCS like DLT_IEEE802_15_4. 183 Build fixes for Sparc and other machines with alignment restrictions. 184 Merged changes from Debian package. 185 PGM: Add ACK decoding and add PGMCC DATA and FEEDBACK options. 186 Build fixes for OSX (Snow Leopard and others) 187 Add support for IEEE 802.15.4 packets 188 189Tue. July 20, 2010. guy@alum.mit.edu. 190 Summary for 4.1.2 tcpdump release 191 If -U is specified, flush the file after creating it, so it's 192 not zero-length 193 Fix TCP flags output description, and some typoes, in the man 194 page 195 Add a -h flag, and only attempt to recognize 802.11s mesh 196 headers if it's set 197 When printing the link-layer type list, send *all* output to 198 stderr 199 Include the CFLAGS setting when configure was run in the 200 compiler flags 201 202Thu. April 1, 2010. guy@alum.mit.edu. 203 Summary for 4.1.1 tcpdump release 204 Fix build on systems with PF, such as FreeBSD and OpenBSD. 205 Don't blow up if a zero-length link-layer address is passed to 206 linkaddr_string(). 207 208Thu. March 11, 2010. ken@netfunctional.ca/guy@alum.mit.edu. 209 Summary for 4.1.0 tcpdump release 210 Fix printing of MAC addresses for VLAN frames with a length 211 field 212 Add some additional bounds checks and use the EXTRACT_ macros 213 more 214 Add a -b flag to print the AS number in BGP packets in ASDOT 215 notation rather than ASPLAIN notation 216 Add ICMPv6 RFC 5006 support 217 Decode the access flags in NFS access requests 218 Handle the new DLT_ for memory-mapped USB captures on Linux 219 Make the default snapshot (-s) the maximum 220 Print name of device (when -L is used) 221 Support for OpenSolaris (and SXCE build 125 and later) 222 Print new TCP flags 223 Add support for RPL DIO 224 Add support for TCP User Timeout (UTO) 225 Add support for non-standard Ethertypes used by 3com PPPoE gear 226 Add support for 802.11n and 802.11s 227 Add support for Transparent Ethernet Bridge ethertype in GRE 228 Add 4 byte AS support for BGP printer 229 Add support for the MDT SAFI 66 BG printer 230 Add basic IPv6 support to print-olsr 231 Add USB printer 232 Add printer for ForCES 233 Handle frames with an FCS 234 Handle 802.11n Control Wrapper, Block Acq Req and Block Ack frames 235 Fix TCP sequence number printing 236 Report 802.2 packets as 802.2 instead of 802.3 237 Don't include -L/usr/lib in LDFLAGS 238 On x86_64 Linux, look in lib64 directory too 239 Lots of code clean ups 240 Autoconf clean ups 241 Update testcases to make output changes 242 Fix compiling with/out smi (--with{,out}-smi) 243 Fix compiling without IPv6 support (--disable-ipv6) 244 245Mon. October 27, 2008. ken@netfunctional.ca. Summary for 4.0.0 tcpdump release 246 Add support for Bluetooth Sniffing 247 Add support for Realtek Remote Control Protocol (openrrcp.org.ru) 248 Add support for 802.11 AVS 249 Add support for SMB over TCP 250 Add support for 4 byte BGP AS printing 251 Add support for compiling on case-insensitive file systems 252 Add support for ikev2 printing 253 Update support for decoding AFS 254 Update DHCPv6 printer 255 Use newer libpcap API's (allows -B option on all platforms) 256 Add -I to turn on monitor mode 257 Bugfixes in lldp, lspping, dccp, ESP, NFS printers 258 Cleanup unused files and various cruft 259 260Mon. September 10, 2007. ken@xelerance.com. Summary for 3.9.8 tcpdump release 261 Rework ARP printer 262 Rework OSPFv3 printer 263 Add support for Frame-Relay ARP 264 Decode DHCP Option 121 (RFC 3442 Classless Static Route) 265 Decode DHCP Option 249 (MS Classless Static Route) the same as Option 121 266 TLV: Add support for Juniper .pcap extensions 267 Print EGP header in new-world-order style 268 Converted print-isakmp.c to NETDISSECT 269 Moved AF specific stuff into af.h 270 Test subsystem now table driven, and saves outputs and diffs to one place 271 Require <net/pfvar.h> for pf definitions - allows reading of pflog formatted 272 libpcap files on an OS other than where the file was generated 273 274 275Wed. July 23, 2007. mcr@xelerance.com. Summary for 3.9.7 libpcap release 276 277 NFS: Print unsigned values as such. 278 RX: parse safely. 279 BGP: fixes for IPv6-less builds. 280 801.1ag: use standard codepoint. 281 use /dev/bpf on systems with such a device. 282 802.11: print QoS data, avoid dissect of no-data frame, ignore padding. 283 smb: make sure that we haven't gone past the end of the captured data. 284 smb: squelch an uninitialized complaint from coverity. 285 NFS: from NetBSD; don't interpret the reply as a possible NFS reply 286 if it got MSG_DENIED. 287 BGP: don't print TLV values that didn't fit, from www.digit-labs.org. 288 revised INSTALL.txt about libpcap dependancy. 289 290Wed. April 25, 2007. ken@xelerance.com. Summary for 3.9.6 tcpdump release 291 Update man page to reflect changes to libpcap 292 Changes to both TCP and IP Printer Output 293 Fix a potential buffer overflow in the 802.11 printer 294 Print basic info about a few more Cisco LAN protocols. 295 mDNS cleanup 296 ICMP MPLS rework of the extension code 297 bugfix: use the correct codepoint for the OSPF simple text auth token 298 entry, and use safeputs to print the password. 299 Add support in pflog for additional values 300 Add support for OIF RSVP Extensions UNI 1.0 Rev. 2 and additional RSVP objects 301 Add support for the Message-id NACK c-type. 302 Add support for 802.3ah loopback ctrl msg 303 Add support for Multiple-STP as per 802.1s 304 Add support for rapid-SPT as per 802.1w 305 Add support for CFM Link-trace msg, Link-trace-Reply msg, 306 Sender-ID tlv, private tlv, port, interface status 307 Add support for unidirectional link detection as per 308 http://www.ietf.org/internet-drafts/draft-foschiano-udld-02.txt 309 Add support for the olsr protocol as per RFC 3626 plus the LQ 310 extensions from olsr.org 311 Add support for variable-length checksum in DCCP, as per section 9 of 312 RFC 4340. 313 Add support for per-VLAN spanning tree and per-VLAN rapid spanning tree 314 Add support for Multiple-STP as per 802.1s 315 Add support for the cisco propriatry 'dynamic trunking protocol' 316 Add support for the cisco proprietary VTP protocol 317 Update dhcp6 options table as per IETF standardization activities 318 319 320Tue. September 19, 2006. ken@xelerance.com. Summary for 3.9.5 tcpdump release 321 322 Fix compiling on AIX (, at end of ENUM) 323 Updated list of DNS RR typecodes 324 Use local Ethernet defs on WIN32 325 Add support for Frame-Relay ARP 326 Fixes for compiling under MSVC++ 327 Add support for parsing Juniper .pcap files 328 Add support for FRF.16 Multilink Frame-Relay (DLT_MFR) 329 Rework the OSPFv3 printer 330 Fix printing for 4.4BSD/NetBSD NFS Filehandles 331 Add support for Cisco style NLPID encapsulation 332 Add cisco prop. eigrp related, extended communities 333 Add support for BGP signaled VPLS 334 Cleanup the bootp printer 335 Add support for PPP over Frame-Relay 336 Add some bounds checking to the IP options code, and clean up 337 the options output a bit. 338 Add additional modp groups to ISAKMP printer 339 Add support for Address-Withdraw and Label-Withdraw Msgs 340 Add support for the BFD Discriminator TLV 341 Fixes for 64bit compiling 342 Add support for PIMv2 checksum verification 343 Add support for further dissection of the IPCP Compression Option 344 Add support for Cisco's proposed VQP protocol 345 Add basic support for keyed authentication TCP option 346 Lots of minor cosmetic changes to output printers 347 348 349Mon. September 19, 2005. ken@xelerance.com. Summary for 3.9.4 tcpdump release 350 Decoder support for more Juniper link-layer types 351 Fix a potential buffer overflow (although it can't occur in 352 practice). 353 Fix the handling of unknown management frame types in the 802.11 354 printer. 355 Add FRF.16 support, fix various Frame Relay bugs. 356 Add support for RSVP integrity objects, update fast-reroute 357 object printer to latest spec. 358 Clean up documentation of vlan filter expression, document mpls 359 filter expression. 360 Document new pppoed and pppoes filter expressions. 361 Update diffserver-TE codepoints as per RFC 4124. 362 Spelling fixes in ICMPv6. 363 Don't require any fields other than flags to be present in IS-IS 364 restart signaling TLVs, and only print the system ID in 365 those TLVs as system IDs, not as node IDs. 366 Support for DCCP. 367 368Tue. July 5, 2005. ken@xelerance.com. Summary for 3.9.3 tcpdump release 369 370 Option to chroot() when dropping privs 371 Fixes for compiling on nearly every platform, 372 including improved 64bit support 373 Many new testcases 374 Support for sending packets 375 Many compliation fixes on most platforms 376 Fixes for recent version of GCC to eliminate warnings 377 Improved Unicode support 378 379 Decoders & DLT Changes, Updates and New: 380 AES ESP support 381 Juniper ATM, FRF.15, FRF.16, PPPoE, 382 ML-FR, ML-PIC, ML-PPP, PL-PPP, LS-PIC 383 GGSN,ES,MONITOR,SERVICES 384 L2VPN 385 Axent Raptor/Symantec Firewall 386 TCP-MD5 (RFC 2385) 387 ESP-in-UDP (RFC 3948) 388 ATM OAM 389 LMP, LMP Service Discovery 390 IP over FC 391 IP over IEEE 1394 392 BACnet MS/TP 393 SS7 394 LDP over TCP 395 LACP, MARKER as per 802.3ad 396 PGM (RFC 3208) 397 LSP-PING 398 G.7041/Y.1303 Generic Framing Procedure 399 EIGRP-IP, EIGRP-IPX 400 ICMP6 401 Radio - via radiotap 402 DHCPv6 403 HDLC over PPP 404 405Tue. March 30, 2004. mcr@sandelman.ottawa.on.ca. Summary for 3.8.3 release 406 407 No changes from 3.8.2. Version bumped only to maintain consistency 408 with libpcap 0.8.3. 409 410Mon. March 29, 2004. mcr@sandelman.ottawa.on.ca. Summary for 3.8.2 release 411 412 Fixes for print-isakmp.c CVE: CAN-2004-0183, CAN-2004-0184 413 http://www.rapid7.com/advisories/R7-0017.html 414 IP-over-IEEE1394 printing. 415 some MINGW32 changes. 416 updates for autoconf 2.5 417 fixes for print-aodv.c - check for too short packets 418 formatting changes to print-ascii for hex output. 419 check for too short packets: print-bgp.c, print-bootp.c, print-cdp.c, 420 print-chdlc.c, print-domain.c, print-icmp.c, print-icmp6.c, 421 print-ip.c, print-lwres.c, print-ospf.c, print-pim.c, 422 print-ppp.c,print-pppoe.c, print-rsvp.c, print-wb.c 423 print-ether.c - better handling of unknown types. 424 print-isoclns.c - additional decoding of types. 425 print-llc.c - strings for LLC names added. 426 print-pfloc.c - various enhancements 427 print-radius.c - better decoding to strings. 428 429Wed. November 12, 2003. mcr@sandelman.ottawa.on.ca. Summary for 3.8 release 430 431 changed syntax of -E argument so that multiple SAs can be decrypted 432 fixes for Digital Unix headers and Documentation 433 __attribute__ fixes 434 CDP changes from Terry Kennedy <terry@tmk.com>. 435 IPv6 mobility updates from Kazushi Sugyo <sugyo@pb.jp.nec.com> 436 Fixes for ASN.1 decoder for 2.100.3 forms. 437 Added a count of packets received and processed to clarify numbers. 438 Incorporated WinDUMP patches for Win32 builds. 439 PPPoE payload length headers. 440 Fixes for HP C compiler builds. 441 Use new pcap_breakloop() and pcap_findalldevs() if we can. 442 BGP output split into multiple lines. 443 Fixes to 802.11 decoding. 444 Fixes to PIM decoder. 445 SuperH is a CPU that can't handle unaligned access. Many fixes for 446 unaligned access work. 447 Fixes to Frame-Relay decoder for Q.933/922 frames. 448 Clarified when Solaris can do captures as non-root. 449 Added tests/ subdir for examples/regression tests. 450 New -U flag. -flush stdout after every packet 451 New -A flag -print ascii only 452 support for decoding IS-IS inside Cisco HDLC Frames 453 more verbosity for tftp decoder 454 mDNS decoder 455 new BFD decoder 456 cross compilation patches 457 RFC 3561 AODV support. 458 UDP/TCP pseudo-checksum properly for source-route options. 459 sanitized all files to modified BSD license 460 Add support for RFC 2625 IP-over-Fibre Channel. 461 fixes for DECnet support. 462 Support RFC 2684 bridging of Ethernet, 802.5 Token Ring, and FDDI. 463 RFC 2684 encapsulation of BPDUs. 464 465Tuesday, February 25, 2003. fenner@research.att.com. 3.7.2 release 466 467 Fixed infinite loop when parsing malformed isakmp packets. 468 (reported by iDefense; already fixed in CVS) 469 Fixed infinite loop when parsing malformed BGP packets. 470 Fixed buffer overflow with certain malformed NFS packets. 471 Pretty-print unprintable network names in 802.11 printer. 472 Handle truncated nbp (appletalk) packets. 473 Updated DHCPv6 printer to match draft-ietf-dhc-dhcpv6-22.txt 474 Print IP protocol name even if we don't have a printer for it. 475 Print IP protocol name or number for fragments. 476 Print the whole MPLS label stack, not just the top label. 477 Print request header and file handle for NFS v3 FSINFO and PATHCONF 478 requests. 479 Fix NFS packet truncation checks. 480 Handle "old" DR-Priority and Bidir-Capable PIM HELLO options. 481 Handle unknown RADIUS attributes properly. 482 Fix an ASN.1 parsing error that would cause e.g. the OID 483 2.100.3 to be misrepresented as 4.20.3 . 484 485Monday, January 21, 2002. mcr@sandelman.ottawa.on.ca. Summary for 3.7 release 486see http://www.tcpdump.org/cvs-log/2002-01-21.10:16:48.html for commit log. 487 keyword "ipx" added. 488 Better OSI/802.2 support on Linux. 489 IEEE 802.11 support, from clenahan@fortresstech.com, achirica@ttd.net. 490 LLC SAP support for FDDI/token ring/RFC-1483 style ATM 491 BXXP protocol was replaced by the BEEP protocol; 492 improvements to SNAP demux. 493 Changes to "any" interface documentation. 494 Documentation on pcap_stats() counters. 495 Fix a memory leak found by Miklos Szeredi - pcap_ether_aton(). 496 Added MPLS encapsulation decoding per RFC3032. 497 DNS dissector handles TKEY, TSIG and IXFR. 498 adaptive SLIP interface patch from Igor Khristophorov <igor@atdot.org> 499 SMB printing has much improved bounds checks 500 OUI 0x0000f8 decoded as encapsulated ethernet for Cisco-custom bridging 501 Zephyr support, from Nickolai Zeldovich <kolya@MIT.EDU>. 502 Solaris - devices with digits in them. Stefan Hudson <hudson@mbay.net> 503 IPX socket 0x85be is for Cisco EIGRP over IPX. 504 Improvements to fragmented ESP handling. 505 SCTP support from Armando L. Caro Jr. <acaro@mail.eecis.udel.edu> 506 Linux ARPHDR_ATM support fixed. 507 Added a "netbeui" keyword, which selects NetBEUI packets. 508 IPv6 ND improvements, MobileIP dissector, 2292bis-02 for RA option. 509 Handle ARPHDR_HDLC from Marcus Felipe Pereira <marcus@task.com.br>. 510 Handle IPX socket 0x553 -> NetBIOS-over-IPX socket, "nwlink-dgm" 511 Better Linux libc5 compat. 512 BIND9 lwres dissector added. 513 MIPS and SPARC get strict alignment macros (affects print-bgp.c) 514 Apple LocalTalk LINKTYPE_ reserved. 515 New time stamp formats documented. 516 DHCP6 updated to draft-22.txt spec. 517 ICMP types/codes now accept symbolic names. 518 Add SIGINFO handler from LBL 519 encrypted CIPE tunnels in IRIX, from Franz Schaefer <schaefer@mond.at>. 520 now we are -Wstrict-prototype clean. 521 NetBSD DLT_PPP_ETHER; adapted from Martin Husemann <martin@netbsd.org>. 522 PPPoE dissector cleaned up. 523 Support for LocalTalk hardware, from Uns Lider <unslider@miranda.org>. 524 In dissector, now the caller prints the IP addresses rather than proto. 525 cjclark@alum.mit.edu: print the IP proto for non-initial fragments. 526 LLC frames with a DSAP and LSAP of 0xe0 are IPX frames. 527 Linux cooked frames with a type value of LINUX_SLL_P_802_3 are IPX. 528 captures on the "any" device won't be done in promiscuous mode 529 Token Ring support on DLPI - Onno van der Linden <onno@simplex.nl> 530 ARCNet support, from NetBSD. 531 HSRP dissector, from Julian Cowley <julian@lava.net>. 532 Handle (GRE-encapsulated) PPTP 533 added -C option to rotate save file every optarg * 1,000,000 bytes. 534 support for "vrrp" name - NetBSD, by Klaus Klein <kleink@netbsd.org>. 535 PPTP support, from Motonori Shindo <mshindo@mshindo.net>. 536 IS-IS over PPP support, from Hannes Gredler <hannes@juniper.net>. 537 CNFP support for IPv6,format. Harry Raaymakers <harryr@connect.com.au>. 538 ESP printing updated to RFC2406. 539 HP-UX can now handle large number of PPAs. 540 MSDP printer added. 541 L2TP dissector improvements from Motonori Shindo. 542 543Tuesday January 9, 2001. mcr@sandelman.ottawa.on.ca. Summary for 3.6 release 544 Cleaned up documentation. 545 Promisc mode fixes for Linux 546 IPsec changes/cleanups. 547 Alignment fixes for picky architectures 548 549 Removed dependency on native headers for packet dissectors. 550 Removed Linux specific headers that were shipped 551 552 libpcap changes provide for exchanging capture files between 553 systems. Save files now have well known PACKET_ values instead of 554 depending upon system dependant mappings of DLT_* types. 555 556 Support for computing/checking IP and UDP/TCP checksums. 557 558 Updated autoconf stock files. 559 560 IPv6 improvements: dhcp (draft-15), mobile-ip6, ppp, ospf6, 561 562 Added dissector support for: ISOCLNS, Token Ring, IGMPv3, bxxp, 563 timed, vrrp, radius, chdlc, cnfp, cdp, IEEE802.1d, raw-AppleTalk 564 565 Added filtering support for: VLANs, ESIS, ISIS 566 567 Improvements to: print-telnet, IPTalk, bootp/dhcp, ECN, PPP, 568 L2TP, PPPoE 569 570 HP-UX 11.0 -- find the right dlpi device. 571 Solaris 8 - IPv6 works 572 Linux - Added support for an "any" device to capture on all interfaces 573 574 Security fixes: buffer overrun audit done. Strcpy replaced with 575 strlcpy, sprintf replaced with snprintf. 576 Look for lex problems, and warn about them. 577 578 579v3.5 Fri Jan 28 18:00:00 PST 2000 580 581Bill Fenner <fenner@research.att.com> 582- switch to config.h for autoconf 583- unify RCSID strings 584- Updated PIMv1, PIMv2, DVMRP, IGMP parsers, add Cisco Auto-RP parser 585- Really fix the RIP printer 586- Fix MAC address -> name translation. 587- some -Wall -Wformat fixes 588- update makemib to parse much of SMIv2 589- Print TCP sequence # with -vv even if you normally wouldn't 590- Print as much of IP/TCP/UDP headers as possible even if truncated. 591 592itojun@iijlab.net 593- -X will make a ascii dump. from netbsd. 594- telnet command sequence decoder (ff xx xx). from netbsd. 595- print-bgp.c: improve options printing. ugly code exists for 596 unaligned option parsing (need some fix). 597- const poisoning in SMB decoder. 598- -Wall -Werror clean checks. 599- bring in KAME IPv6/IPsec decoding code. 600 601Assar Westerlund <assar@sics.se> 602- SNMPv2 and SNMPv3 printer 603- If compiled with libsmi, tcpdump can load MIBs on the fly to decode 604 SNMP packets. 605- Incorporate NFS parsing code from NetBSD. Adds support for nfsv3. 606- portability fixes 607- permit building in different directories. 608 609Ken Hornstein <kenh@cmf.nrl.navy.mil> 610- bring in code at 611 /afs/transarc.com/public/afs-contrib/tools/tcpdump for parsing 612 AFS3 packets 613 614Andrew Tridgell <tridge@linuxcare.com> 615- SMB printing code 616 617Love <lha@stacken.kth.se> 618- print-rx.c: add code for printing MakeDir and StoreStatus. Also 619 change date format to the right one. 620 621Michael C. Richardson <mcr@sandelman.ottawa.on.ca> 622- Created tcpdump.org repository 623 624v3.4 Sat Jul 25 12:40:55 PDT 1998 625 626- Hardwire Linux slip support since it's too hard to detect. 627 628- Redo configuration of "network" libraries (-lsocket and -lnsl) to 629 deal with IRIX. Thanks to John Hawkinson (jhawk@mit.edu) 630 631- Added -a which tries to translate network and broadcast addresses to 632 names. Suggested by Rob van Nieuwkerk (robn@verdi.et.tudelft.nl) 633 634- Added a configure option to disable gcc. 635 636- Added a "raw" packet printer. 637 638- Not having an interface address is no longer fatal. Requested by John 639 Hawkinson. 640 641- Rework signal setup to accommodate Linux. 642 643- OSPF truncation check fix. Also display the type of OSPF packets 644 using MD5 authentication. Thanks to Brian Wellington 645 (bwelling@tis.com) 646 647- Fix truncation check bugs in the Kerberos printer. Reported by Ezra 648 Peisach (epeisach@mit.edu) 649 650- Don't catch SIGHUP when invoked with nohup(1). Thanks to Dave Plonka 651 (plonka@mfa.com) 652 653- Specify full install target as a way of detecting if install 654 directory does not exist. Thanks to Dave Plonka. 655 656- Bit-swap FDDI addresses for BSD/OS too. Thanks to Paul Vixie 657 (paul@vix.com) 658 659- Fix off-by-one bug when testing size of ethernet packets. Thanks to 660 Marty Leisner (leisner@sdsp.mc.xerox.com) 661 662- Add a local autoconf macro to check for routines in libraries; the 663 autoconf version is broken (it only puts the library name in the 664 cache variable name). Thanks to John Hawkinson. 665 666- Add a local autoconf macro to check for types; the autoconf version 667 is broken (it uses grep instead of actually compiling a code fragment). 668 669- Modified to support the new BSD/OS 2.1 PPP and SLIP link layer header 670 formats. 671 672- Extend OSF ip header workaround to versions 1 and 2. 673 674- Fix some signed problems in the nfs printer. As reported by David 675 Sacerdote (davids@silence.secnet.com) 676 677- Detect group wheel and use it as the default since BSD/OS' install 678 can't hack numeric groups. Reported by David Sacerdote. 679 680- AIX needs special loader options. Thanks to Jonathan I. Kamens 681 (jik@cam.ov.com) 682 683- Fixed the nfs printer to print port numbers in decimal. Thanks to 684 Kent Vander Velden (graphix@iastate.edu) 685 686- Find installed libpcap in /usr/local/lib when not using gcc. 687 688- Disallow network masks with non-network bits set. 689 690- Attempt to detect "egcs" versions of gcc. 691 692- Add missing closing double quotes when displaying bootp strings. 693 Reported by Viet-Trung Luu (vluu@picard.math.uwaterloo.ca) 694 695v3.3 Sat Nov 30 20:56:27 PST 1996 696 697- Added Linux support. 698 699- GRE encapsulated packet printer thanks to John Hawkinson 700 (jhawk@mit.edu) 701 702- Rewrite gmt2local() to avoid problematic os dependencies. 703 704- Suppress nfs truncation message on errors. 705 706- Add missing m4 quoting in AC_LBL_UNALIGNED_ACCESS autoconf macro. 707 Reported by Joachim Ott (ott@ardala.han.de) 708 709- Enable "ip_hl vs. ip_vhl" workaround for OSF4 too. 710 711- Print arp hardware type in host order. Thanks to Onno van der Linden 712 (onno@simplex.nl) 713 714- Avoid solaris compiler warnings. Thanks to Bruce Barnett 715 (barnett@grymoire.crd.ge.com) 716 717- Fix rip printer to not print one more route than is actually in the 718 packet. Thanks to Jean-Luc Richier (Jean-Luc.Richier@imag.fr) and 719 Bill Fenner (fenner@parc.xerox.com) 720 721- Use autoconf endian detection since BYTE_ORDER isn't defined on all systems. 722 723- Fix dvmrp printer truncation checks and add a dvmrp probe printer. 724 Thanks to Danny J. Mitzel (mitzel@ipsilon.com) 725 726- Rewrite ospf printer to improve truncation checks. 727 728- Don't parse tcp options past the EOL. As noted by David Sacerdote 729 (davids@secnet.com). Also, check tcp options to make sure they ar 730 actually in the tcp header (in addition to the normal truncation 731 checks). Fix the SACK code to print the N blocks (instead of the 732 first block N times). 733 734- Don't say really small UDP packets are truncated just because they 735 aren't big enough to be a RPC. As noted by David Sacerdote. 736 737v3.2.1 Sun Jul 14 03:02:26 PDT 1996 738 739- Added rfc1716 icmp codes as suggested by Martin Fredriksson 740 (martin@msp.se) 741 742- Print mtu for icmp unreach need frag packets. Thanks to John 743 Hawkinson (jhawk@mit.edu) 744 745- Decode icmp router discovery messages. Thanks to Jeffrey Honig 746 (jch@bsdi.com) 747 748- Added a printer entry for DLT_IEEE802 as suggested by Tak Kushida 749 (kushida@trl.ibm.co.jp) 750 751- Check igmp checksum if possible. Thanks to John Hawkinson. 752 753- Made changes for SINIX. Thanks to Andrej Borsenkow 754 (borsenkow.msk@sni.de) 755 756- Use autoconf's idea of the top level directory in install targets. 757 Thanks to John Hawkinson. 758 759- Avoid infinite loop in tcp options printing code. Thanks to Jeffrey 760 Mogul (mogul@pa.dec.com) 761 762- Avoid using -lsocket in IRIX 5.2 and earlier since it breaks snoop. 763 Thanks to John Hawkinson. 764 765- Added some more packet truncation checks. 766 767- On systems that have it, use sigset() instead of signal() since 768 signal() has different semantics on these systems. 769 770- Fixed some more alignment problems on the alpha. 771 772- Add code to massage unprintable characters in the domain and ipx 773 printers. Thanks to John Hawkinson. 774 775- Added explicit netmask support. Thanks to Steve Nuchia 776 (steve@research.oknet.com) 777 778- Add "sca" keyword (for DEC cluster services) as suggested by Terry 779 Kennedy (terry@spcvxa.spc.edu) 780 781- Add "atalk" keyword as suggested by John Hawkinson. 782 783- Added an igrp printer. Thanks to Francis Dupont 784 (francis.dupont@inria.fr) 785 786- Print IPX net numbers in hex a la Novell Netware. Thanks to Terry 787 Kennedy (terry@spcvxa.spc.edu) 788 789- Fixed snmp extended tag field parsing bug. Thanks to Pascal Hennequin 790 (pascal.hennequin@hugo.int-evry.fr) 791 792- Added some ETHERTYPEs missing on some systems. 793 794- Added truncated packet macros and various checks. 795 796- Fixed endian problems with the DECnet printer. 797 798- Use $CC when checking gcc version. Thanks to Carl Lindberg 799 (carl_lindberg@blacksmith.com) 800 801- Fixes for AIX (although this system is not yet supported). Thanks to 802 John Hawkinson. 803 804- Fix bugs in the autoconf misaligned accesses code fragment. 805 806- Include sys/param.h to get BYTE_ORDER in a few places. Thanks to 807 Pavlin Ivanov Radoslavov (pavlin@cs.titech.ac.jp) 808 809v3.2 Sun Jun 23 02:28:10 PDT 1996 810 811- Print new icmp unreachable codes as suggested by Martin Fredriksson 812 (martin@msp.se). Also print code value when unknown for icmp redirect 813 and time exceeded. 814 815- Fix an alignment endian bug in getname(). Thanks to John Hawkinson. 816 817- Define "new" domain record types if not found in arpa/nameserv.h. 818 Resulted from a suggestion from John Hawkinson (jhawk@mit.edu). Also 819 fixed an endian bug when printing mx record and added some new record 820 types. 821 822- Added RIP V2 support. Thanks to Jeffrey Honig (jch@bsdi.com) 823 824- Added T/TCP options printing. As suggested by Richard Stevens 825 (rstevens@noao.edu) 826 827- Use autoconf to detect architectures that can't handle misaligned 828 accesses. 829 830v3.1 Thu Jun 13 20:59:32 PDT 1996 831 832- Changed u_int32/int32 to u_int32_t/int32_t to be consistent with bsd 833 and bind (as suggested by Charles Hannum). 834 835- Port to GNU autoconf. 836 837- Add support for printing DVMRP and PIM traffic thanks to 838 Havard Eidnes (Havard.Eidnes@runit.sintef.no). 839 840- Fix AppleTalk, IPX and DECnet byte order problems due to wrong endian 841 define being referenced. Reported by Terry Kennedy. 842 843- Minor fixes to the man page thanks to Mark Andrews. 844 845- Endian fixes to RTP and vat packet dumpers, thanks to Bruce Mah 846 (bmah@cs.berkeley.edu). 847 848- Added support for new dns types, thanks to Rainer Orth. 849 850- Fixed tftp_print() to print the block number for ACKs. 851 852- Document -dd and -ddd. Resulted from a bug report from Charlie Slater 853 (cslater@imatek.com). 854 855- Check return status from malloc/calloc/etc. 856 857- Check return status from pcap_loop() so we can print an error and 858 exit with a bad status if there were problems. 859 860- Bail if ip option length is <= 0. Resulted from a bug report from 861 Darren Reed (darrenr@vitruvius.arbld.unimelb.edu.au). 862 863- Print out a little more information for sun rpc packets. 864 865- Add suport for Kerberos 4 thanks to John Hawkinson (jhawk@mit.edu). 866 867- Fixed the Fix EXTRACT_SHORT() and EXTRACT_LONG() macros (which were 868 wrong on little endian machines). 869 870- Fixed alignment bug in ipx_decode(). Thanks to Matt Crawford 871 (crawdad@fnal.gov). 872 873- Fix ntp_print() to not print garbage when the stratum is 874 "unspecified." Thanks to Deus Ex Machina (root@belle.bork.com). 875 876- Rewrote tcp options printer code to check for truncation. Added 877 selective acknowledgment case. 878 879- Fixed an endian bug in the ospf printer. Thanks to Jeffrey C Honig 880 (jch@bsdi.com) 881 882- Fix rip printer to handle 4.4 BSD sockaddr struct which only uses one 883 octet for the sa_family member. Thanks to Yoshitaka Tokugawa 884 (toku@dit.co.jp) 885 886- Don't checksum ip header if we don't have all of it. Thanks to John 887 Hawkinson (jhawk@mit.edu). 888 889- Print out hostnames if possible in egp printer. Thanks to Jeffrey 890 Honig (jhc@bsdi.com) 891 892 893v3.1a1 Wed May 3 19:21:11 PDT 1995 894 895- Include time.h when SVR4 is defined to avoid problems under Solaris 896 2.3. 897 898- Fix etheraddr_string() in the ETHER_SERVICE to return the saved 899 strings, not the local buffer. Thanks to Stefan Petri 900 (petri@ibr.cs.tu-bs.de). 901 902- Detect when pcap raises the snaplen (e.g. with snit). Print a warning 903 that the selected value was not used. Thanks to Pascal Hennequin 904 (Pascal.Hennequin@hugo.int-evry.fr). 905 906- Add a truncated packet test to print-nfs.c. Thanks to Pascal Hennequin. 907 908- BYTEORDER -> BYTE_ORDER Thanks to Terry Kennedy (terry@spcvxa.spc.edu). 909 910v3.0.3 Sun Oct 1 18:35:00 GMT 1995 911 912- Although there never was a 3.0.3 release, the linux boys cleverly 913 "released" one in late 1995. 914 915v3.0.2 Thu Apr 20 21:28:16 PDT 1995 916 917- Change configuration to not use gcc v2 flags with gcc v1. 918 919- Redo gmt2local() so that it works under BSDI (which seems to return 920 an empty timezone struct from gettimeofday()). Based on report from 921 Terry Kennedy (terry@spcvxa.spc.edu). 922 923- Change configure to recognize IP[0-9]* as "mips" SGI hardware. Based 924 on report from Mark Andrews (mandrews@alias.com). 925 926- Don't pass cc flags to gcc. Resulted from a bug report from Rainer 927 Orth (ro@techfak.uni-bielefeld.de). 928 929- Fixed printout of connection id for uncompressed tcp slip packets. 930 Resulted from a bug report from Richard Stevens (rstevens@noao.edu). 931 932- Hack around deficiency in Ultrix's make. 933 934- Add ETHERTYPE_TRAIL define which is missing from irix5. 935 936v3.0.1 Wed Aug 31 22:42:26 PDT 1994 937 938- Fix problems with gcc2 vs. malloc() and read() prototypes under SunOS 4. 939 940v3.0 Mon Jun 20 19:23:27 PDT 1994 941 942- Added support for printing tcp option timestamps thanks to 943 Mark Andrews (mandrews@alias.com). 944 945- Reorganize protocol dumpers to take const pointers to packets so they 946 never change the contents (i.e., they used to do endian conversions 947 in place). Previously, whenever more than one pass was taken over 948 the packet, the packet contents would be dumped incorrectly (i.e., 949 the output form -x would be wrong on little endian machines because 950 the protocol dumpers would modify the data). Thanks to Charles Hannum 951 (mycroft@gnu.ai.mit.edu) for reporting this problem. 952 953- Added support for decnet protocol dumping thanks to Jeff Mogul 954 (mogul@pa.dec.com). 955 956- Fix bug that caused length of packet to be incorrectly printed 957 (off by ether header size) for unknown ethernet types thanks 958 to Greg Miller (gmiller@kayak.mitre.org). 959 960- Added support for IPX protocol dumping thanks to Brad Parker 961 (brad@fcr.com). 962 963- Added check to verify IP header checksum under -v thanks to 964 Brad Parker (brad@fcr.com). 965 966- Move packet capture code to new libpcap library (which is 967 packaged separately). 968 969- Prototype everything and assume an ansi compiler. 970 971- print-arp.c: Print hardware ethernet addresses if they're not 972 what we expect. 973 974- print-bootp.c: Decode the cmu vendor field. Add RFC1497 tags. 975 Many helpful suggestions from Gordon Ross (gwr@jericho.mc.com). 976 977- print-fddi.c: Improvements. Thanks to Jeffrey Mogul 978 (mogul@pa.dec.com). 979 980- print-icmp.c: Byte swap netmask before printing. Thanks to 981 Richard Stevens (rstevens@noao.edu). Print icmp type when unknown. 982 983- print-ip.c: Print the inner ip datagram of ip-in-ip encapsulated packets. 984 By default, only the inner packet is dumped, appended with the token 985 "(encap)". Under -v, both the inner and output packets are dumped 986 (on the same line). Note that the filter applies to the original packet, 987 not the encapsulated packet. So if you run tcpdump on a net with an 988 IP Multicast tunnel, you cannot filter out the datagrams using the 989 conventional syntax. (You can filter away all the ip-in-ip traffic 990 with "not ip proto 4".) 991 992- print-nfs.c: Keep pending rpc's in circular table. Add generic 993 nfs header and remove os dependences. Thanks to Jeffrey Mogul. 994 995- print-ospf.c: Improvements. Thanks to Jeffrey Mogul. 996 997- tcpdump.c: Add -T flag allows interpretation of "vat", "wb", "rpc" 998 (sunrpc) and rtp packets. Added "inbound" and "outbound" keywords 999 Add && and || operators 1000 1001v2.2.1 Tue Jun 6 17:57:22 PDT 1992 1002 1003- Fix bug with -c flag. 1004 1005v2.2 Fri May 22 17:19:41 PDT 1992 1006 1007- savefile.c: Remove hack that shouldn't have been exported. Add 1008 truncate checks. 1009 1010- Added the 'icmp' keyword. For example, 'icmp[0] != 8 and icmp[0] != 0' 1011 matches non-echo/reply ICMP packets. 1012 1013- Many improvements to filter code optimizer. 1014 1015- Added 'multicast' keyword and extended the 'broadcast' keyword can now be 1016 so that protocol qualifications are allowed. For example, "ip broadcast" 1017 and "ether multicast" are valid filters. 1018 1019- Added support for monitoring the loopback interface (i.e. 'tcpdump -i lo'). 1020 Jeffrey Honig (jch@MITCHELL.CIT.CORNELL.EDU) contributed the kernel 1021 patches to netinet/if_loop.c. 1022 1023- Added support for the Ungermann-Bass Ethernet on IBM/PC-RTs running AOS. 1024 Contact Jeffrey Honig (jch@MITCHELL.CIT.CORNELL.EDU) for the diffs. 1025 1026- Added EGP and OSPF printers, thanks to Jeffrey Honig. 1027 1028v2.1 Tue Jan 28 11:00:14 PST 1992 1029 1030- Internal release (never publically exported). 1031 1032v2.0.1 Sun Jan 26 21:10:10 PDT 1033 1034- Various byte ordering fixes. 1035 1036- Add truncation checks. 1037 1038- inet.c: Support BSD style SIOCGIFCONF. 1039 1040- nametoaddr.c: Handle multi addresses for single host. 1041 1042- optimize.c: Rewritten. 1043 1044- pcap-bpf.c: don't choke when we get ptraced. only set promiscuous 1045 for broadcast nets. 1046 1047- print-atal.c: Fix an alignment bug (thanks to 1048 stanonik@nprdc.navy.mil) Add missing printf() argument. 1049 1050- print-bootp.c: First attempt at decoding the vendor buffer. 1051 1052- print-domain.c: Fix truncation checks. 1053 1054- print-icmp.c: Calculate length of packets from the ip header. 1055 1056- print-ip.c: Print frag id in decimal (so it's easier to match up 1057 with non-frags). Add support for ospf, egp and igmp. 1058 1059- print-nfs.c: Lots of changes. 1060 1061- print-ntp.c: Make some verbose output depend on -v. 1062 1063- print-snmp.c: New version from John LoVerso. 1064 1065- print-tcp.c: Print rfc1072 tcp options. 1066 1067- tcpdump.c: Print "0x" prefix for %x formats. Always print 6 digits 1068 (microseconds) worth of precision. Fix uid bugs. 1069 1070- A packet dumper has been added (thanks to Jeff Mogul of DECWRL). 1071 With this option, you can create an architecture independent binary 1072 trace file in real time, without the overhead of the packet printer. 1073 At a later time, the packets can be filtered (again) and printed. 1074 1075- BSD is supported. You must have BPF in your kernel. 1076 Since the filtering is now done in the kernel, fewer packets are 1077 dropped. In fact, with BPF and the packet dumper option, a measly 1078 Sun 3/50 can keep up with a busy network. 1079 1080- Compressed SLIP packets can now be dumped, provided you use our 1081 SLIP software and BPF. These packets are dumped as any other IP 1082 packet; the compressed headers are dumped with the '-e' option. 1083 1084- Machines with little-endian byte ordering are supported (thanks to 1085 Jeff Mogul). 1086 1087- Ultrix 4.0 is supported (also thanks to Jeff Mogul). 1088 1089- IBM RT and Stanford Enetfilter support has been added by 1090 Rayan Zachariassen <rayan@canet.ca>. Tcpdump has been tested under 1091 both the vanilla Enetfilter interface, and the extended interface 1092 (#ifdef'd by IBMRTPC) present in the MERIT version of the Enetfilter. 1093 1094- TFTP packets are now printed (requests only). 1095 1096- BOOTP packets are now printed. 1097 1098- SNMP packets are now printed. (thanks to John LoVerso of Xylogics). 1099 1100- Sparc architectures, including the Sparcstation-1, are now 1101 supported thanks to Steve McCanne and Craig Leres. 1102 1103- SunOS 4 is now supported thanks to Micky Liu of Columbia 1104 University (micky@cunixc.cc.columbia.edu). 1105 1106- IP options are now printed. 1107 1108- RIP packets are now printed. 1109 1110- There's a -v flag that prints out more information than the 1111 default (e.g., it will enable printing of IP ttl, tos and id) 1112 and -q flag that prints out less (e.g., it will disable 1113 interpretation of AppleTalk-in-UDP). 1114 1115- The grammar has undergone substantial changes (if you have an 1116 earlier version of tcpdump, you should re-read the manual 1117 entry). 1118 1119 The most useful change is the addition of an expression 1120 syntax that lets you filter on arbitrary fields or values in the 1121 packet. E.g., "ip[0] > 0x45" would print only packets with IP 1122 options, "tcp[13] & 3 != 0" would print only TCP SYN and FIN 1123 packets. 1124 1125 The most painful change is that concatenation no longer means 1126 "and" -- e.g., you have to say "host foo and port bar" instead 1127 of "host foo port bar". The up side to this down is that 1128 repeated qualifiers can be omitted, making most filter 1129 expressions shorter. E.g., you can now say "ip host foo and 1130 (bar or baz)" to look at ip traffic between hosts foo and bar or 1131 between hosts foo and baz. [The old way of saying this was "ip 1132 host foo and (ip host bar or ip host baz)".] 1133 1134v2.0 Sun Jan 13 12:20:40 PST 1991 1135 1136- Initial public release. 1137