Le 28/09/2011 19:49, skandranon a écrit :

Basically, I would have expected MyMachine to answer ARP queries received via eth0 only if an
address was queried that was assigned to eth0 (also secondary IP addresses assigned by "ip" or
virtual interfaces generated by ifconfig).

So: Is this a bug or a feature?

It is a feature.

You should have a look at the file Documentation/networking/ip-sysctl in the kernel source tree, in 
particular the entry about arp_ignore.

	Nicolas.