ifconfig -a:
...
eth0.1234: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet
10.10.15.2 netmask
255.255.255.0 broadcast
10.10.15.255 ether 00:25:90:d3:14:be txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 105 bytes 4494 (4.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ip route:
10.10.15.0/24 dev eth0.1234 proto kernel scope link src
10.10.15.2