Re: 2 nics, 1 network, puzzle?
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> > I think the kernel is applying IP routing rules to ethernet ARP replies.
> > I don't think it should be doing this, because an ARP reply is clearly
> > related to a physical ethernet address. ARP has nothing to do with IP
> > networks, only with ethernet networks and with a single IP address.
> >
> > At least that's how I understand ARP.
> >
> > Or is an ARP reply actually an IP packet? Maybe it is, but I don't think
> > so, I'm assuming it's an ethernet packet.
Routing rules of some type have to be applied in order to determine how to
send the packet. Ethernet is just a layer 2 protocol. If you're running
IPX, IPX rules will be applied, appletalk then appletalk, IP then IP. ARP
(or ip-ARP) is an IP protocol, although ARP packets do not have standard
IP packet headers.
- -Matt
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