from a NC (Sapodilla):
ubuntu@sapodilla:~$ ip address show 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:25:b3:1f:d6:ee brd ff:ff:ff:ff:ff:ff inet6 fe80::225:b3ff:fe1f:d6ee/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 00:25:b3:1f:d6:f0 brd ff:ff:ff:ff:ff:ff 4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 00:25:b3:1f:d6:f2 brd ff:ff:ff:ff:ff:ff 5: eth3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 00:25:b3:1f:d6:f4 brd ff:ff:ff:ff:ff:ff 6: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether 00:25:b3:1f:d6:ee brd ff:ff:ff:ff:ff:ff inet 10.55.55.3/24 brd 10.55.55.255 scope global br0 inet6 fe80::225:b3ff:fe1f:d6ee/64 scope link valid_lft forever preferred_lft forever 7: virbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether ee:47:b3:d7:54:ca brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 inet6 fe80::ec47:b3ff:fed7:54ca/64 scope link valid_lft forever preferred_lft forever ubuntu@sapodilla:~$ sysctl -n net.ipv4.ip_forward 1 ubuntu@sapodilla:~$
from a NC (Sapodilla):
ubuntu@sapodilla:~$ ip address show UP,LOWER_ UP> mtu 16436 qdisc noqueue state UNKNOWN MULTICAST, UP,LOWER_ UP> mtu 1500 qdisc mq state UP qlen 1000 b3ff:fe1f: d6ee/64 scope link MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 MULTICAST, UP,LOWER_ UP> mtu 1500 qdisc noqueue state UNKNOWN b3ff:fe1f: d6ee/64 scope link MULTICAST, UP,LOWER_ UP> mtu 1500 qdisc noqueue state UNKNOWN b3ff:fed7: 54ca/64 scope link
1: lo: <LOOPBACK,
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: eth0: <BROADCAST,
link/ether 00:25:b3:1f:d6:ee brd ff:ff:ff:ff:ff:ff
inet6 fe80::225:
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,
link/ether 00:25:b3:1f:d6:f0 brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,
link/ether 00:25:b3:1f:d6:f2 brd ff:ff:ff:ff:ff:ff
5: eth3: <BROADCAST,
link/ether 00:25:b3:1f:d6:f4 brd ff:ff:ff:ff:ff:ff
6: br0: <BROADCAST,
link/ether 00:25:b3:1f:d6:ee brd ff:ff:ff:ff:ff:ff
inet 10.55.55.3/24 brd 10.55.55.255 scope global br0
inet6 fe80::225:
valid_lft forever preferred_lft forever
7: virbr0: <BROADCAST,
link/ether ee:47:b3:d7:54:ca brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
inet6 fe80::ec47:
valid_lft forever preferred_lft forever
ubuntu@sapodilla:~$ sysctl -n net.ipv4.ip_forward
1
ubuntu@sapodilla:~$