SYNOPSIS

netfilter.ip.forward

VALUES

family

IP address family

nf_accept

Constant used to signify an 'accept' verdict

nf_stolen

Constant used to signify a 'stolen' verdict

length

The length of the packet buffer contents, in bytes

pf

Protocol family -- either “ipv4” or “ipv6”

psh

TCP PSH flag (if protocol is TCP; ipv4 only)

ipproto_tcp

Constant used to signify that the packet protocol is TCP

syn

TCP SYN flag (if protocol is TCP; ipv4 only)

outdev_name

Name of network device packet will be routed to (if known)

indev_name

Name of network device packet was received on (if known)

ipproto_udp

Constant used to signify that the packet protocol is UDP

dport

TCP or UDP destination port (ipv4 only)

iphdr

Address of IP header

fin

TCP FIN flag (if protocol is TCP; ipv4 only)

nf_drop

Constant used to signify a 'drop' verdict

urg

TCP URG flag (if protocol is TCP; ipv4 only)

nf_queue

Constant used to signify a 'queue' verdict

saddr

A string representing the source IP address

daddr

A string representing the destination IP address

rst

TCP RST flag (if protocol is TCP; ipv4 only)

outdev

Address of net_device representing output device, 0 if unknown

sport

TCP or UDP source port (ipv4 only)

protocol

Packet protocol from driver (ipv4 only)

ack

TCP ACK flag (if protocol is TCP; ipv4 only)

nf_stop

Constant used to signify a 'stop' verdict

nf_repeat

Constant used to signify a 'repeat' verdict

indev

Address of net_device representing input device, 0 if unknown