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ifconfig: more different device items than physical NICs/sockets

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linux-howto

http://unix.stackexchange.com – I have a simple router for home users (D-Link DIR-300) with embedded Linux (kernel 2.6.21) and a bunch of networking tools. Inspecting the internals of of this system through telnet, I've got this output (slightly modified and stripped; lo and ifbN skipped) for the ifconfig -a command: br0 Link encap:Ethernet HWaddr CB:B2:32:9C:4D:2E inet addr:192.168.5.1 Bcast:192.168.5.255 Mask:255.255.255.0 RX bytes:94887799 (90.4 MiB) TX bytes:1042490563 (994.1 MiB) br8 Link encap:Ethernet HWaddr CB:B2:32:9C:4D:2E RX bytes:974053699 (928.9 MiB) TX bytes:0 ( (HowTos)