In case there's no ip routing enabled and no ip default-gateway configured either, the switch will try ARPing the destination IP as it was directly connected. As highlighted by others, neighboring devices will reply if proxy-arp is enabled and if they have a valid route towards that destination.
Andras On Tue, Nov 16, 2010 at 9:56 PM, Sharlon R. Carty <[email protected]> wrote: > Was an incomplete config. Intention was to add ip routing, gateway, all that > good stuff later on. > was surprised that it was actually accessible remotely. > > On Tue, Nov 16, 2010 at 3:23 PM, Peter Rathlev <[email protected]> wrote: > >> On Tue, 2010-11-16 at 14:59 -0400, Sharlon R. Carty wrote: >> > Looks like it's that. did a show arp and saw the arp entries. >> > So best practice is to disable proxy-arp on the interfaces? >> >> Yes, on all neighboring devices. The switch itself isn't a problem, only >> devices that route. >> >> Any special reason not to have a default gateway though? >> >> -- >> Peter >> >> >> > > > -- > --sharlon > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
