Сори, это я когда тестил отключил
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:6e:d2:d9:05 brd ff:ff:ff:ff:ff:ff
inet 172.16.0.185/24 brd 172.16.0.255 scope global eth1
inet6 fe80::20c:6eff:fed2:d905/64 scope link
valid_lft forever preferred_lft forever
3: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 00:01:02:0b:18:1e brd ff:ff:ff:ff:ff:ff
4: eth3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 00:07:e9:0f:7b:c3 brd ff:ff:ff:ff:ff:ff
5: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 90:94:e4:81:ec:60 brd ff:ff:ff:ff:ff:ff
inet 192.168.7.3/24 brd 192.168.7.255 scope global eth2
inet6 fe80::9294:e4ff:fe81:ec60/64 scope link
valid_lft forever preferred_lft forever
6: eth4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 00:07:e9:0f:7c:ce brd ff:ff:ff:ff:ff:ff
default via 172.16.0.185 dev eth1
172.16.0.0/24 dev eth1 proto kernel scope link src 172.16.0.185
192.168.7.0/24 dev eth2 proto kernel scope link src 192.168.7.3
net.ipv4.ip_forward = 1