Add interface name to packet output for tcpdump -i any

[moritzmann1]

When using tcpdump -i any, packets are always displayed for each interface they pass. It would be very helpful to have an option to add the interface name in front of the captured packet.

E.g.:

14:40:16.653326 eth0.111 IP 10.1.1.1.50888 > 10.1.1.2.22: Flags [.], ack 2192, win 4059, options [nop,nop,TS val 803408436 ecr 679498], length 0
14:40:16.653326 eth0.112 IP 10.1.1.1.50888 > 10.1.1.2.22: Flags [.], ack 2192, win 4059, options [nop,nop,TS val 803408436 ecr 679498], length 0
14:40:17.653674 eth0.112 IP 10.1.1.2.22 > 10.1.1.1.50888: Flags [P.], seq 2192:2548, ack 37, win 385, options [nop,nop,TS val 679749 ecr 803408436], length 356
14:40:17.653674 eth0.111 IP 10.1.1.2.22 > 10.1.1.1.50888: Flags [P.], seq 2192:2548, ack 37, win 385, options [nop,nop,TS val 679749 ecr 803408436], length 356

[infrastation]

Please see #296.

[rrva]

Workaround:

http://sebastianhaas.de/anydump-release/

[matonga]

The suggested workaround (by Sebastian Haas) is great, but the output is not sorted by timestamp.