> Proxy ARP only. > > > A.3. ARP datagram > > > > An ARP reply is discarded if the destination IP address does not > > match the local host address. > > Linux counts all the IP addresses it has as being local host address. > > And Linux btw has arpfilter which can do far more than just imitate your > favourite network religion of the week > I think the whole mess comes from the ambigious use of the word host in RFC 826, and several possible interpretations. It can mean both ethernet host (i.e. a NIC) or internet host (i.e. the whole server). This isn't clear from the RFC. In fact, the meanings are mixed. It's not a good RFC. The linux way is a perfectly legal, if somewhat awkward, way to interpret the RFC. Me too, I'd like a device respond only to ARP requests that are meant for an IP bound to it, but please, let's not turn this into a holy war. Regards, Bas - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
