netstat-nat man page

netstat-nat — Show the natted connections on a linux iptable firewall

Synopsis

netstat-nat [options]

Description

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.

Options

-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

Files

/proc/net/ip_conntrack or /proc/net/nf_conntrack

See Also

http://www.tweegy.nl/projects/netstat-n…
http://www.netfilter.org/

Author

netstat-nat has been written by D.Wijsman danny@tweegy.nl
The manual page has been written by marceln@xs4all.nl

Info

July 2002