netstat-nat - Show the natted connections on a linux iptable firewall netstat-nat [options]

netstat-nat Displays NAT connections managed by netfilter/iptables which comes with the > 2.4.x linux kernels. The program reads its information from '/proc/net/ip_conntrack' or '/proc/net/nf_conntrack', which is the temporary conntrack-storage of netfilter.

-h displays help

-n don't resolve IPs/portnumbers to host/portnames

-p <protocol> display NAT connections with protocol selection (see /etc/protocols)

-s <source host> display connections by source IP/hostname

-d <destination host> display connections by destination IP/hostname

-S display SNAT connections

-D display DNAT connections

-L display only connections to NAT box self (doesn't show SNAT & DNAT)

-R display only connections routed through the NAT box (doesn't show SNAT & DNAT)

-x extended view of hostnames

-r <src|dst|src-port|dst-port|state> sort connections

-o no output header

-N display NAT box connection information (only valid with SNAT & DNAT)

-v prints version

/proc/net/ip_conntrack or /proc/net/nf_conntrack http://www.tweegy.nl/projects/netstat-nat/

http://www.netfilter.org/

netstat-nat has been written by D.Wijsman danny@tweegy.nl

The manual page has been written by marceln@xs4all.nl