On Thu, 06.03.08 13:51, John W. Linville (linville@xxxxxxxxxx) wrote: > > I'm sorry, but that's just wrong. Setting a net route on a broadcast > > device will cause ARP request for the IP addresses in that network > > to be broadcast on that segment. Nothing more, nothing less. A host has > > to respond to these requests for routing to occur (most likely though > > proxy arp). The only thing being sent with a broadcast MAC are the ARP > > requests, but those are always sent this way. > > Ralf is, of course, correct. [1] In a sense the only purpose of > the routing table is to control which IP address gets ARPed when > sending-out a frame. Setting the default route to "dev eth0" just > means you ARP for any address. > > Just to make sure, I replicated this environment on my local LAN. > Simply setting the default route as "dev eth0" left me with a laptop > that could only reach the local LAN. Turning on proxy arp at my NAT > router enabled me to communicate with the Internet. I encourage you > to replicate my experiment. :-) > > It's possible that there is some other setting that turns-on the > behavior you describe. But if there is, I don't know about it. > > Thanks, > > John > > [1] Conveniently, that means I am correct as well. :-) Of course, you two are absolutely correct. My bad. I guess I shouldn't claim things without checking them first ;-) But still, enabling this kind of routing on the gateway is just a matter of doing: echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp echo 1 > /proc/sys/net/ipv4/conf/eth0/forwarding Right? Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4 -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
