> So how is this possible? Is there a protocol or something I > haven't heard of? How would it know where my default gateway is? > (Maybe just reply to every ARP with the 192.168.50.1 address? Sorta > looks it.. I just ping'd something that doesn't exist, and got : > > ? (192.168.3.23) at 00:08:02:3e:b3:0f on xl0 [ethernet] > > Oddly an entry for 192.168.3.1 exists, which I would never > ping for. Guess it tried to force a gateway on me. :)
It's called proxy ARP, and is on by default on Cisco routers (and switches with routing functionality). It's a horrible default, and leads to all sorts of "interesting" problems. Proxy ARP: Just say no. Steinar Haug, Nethelp consulting, [EMAIL PROTECTED] _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
