Not exactly a Debian-related question, but nonetheless: We've got a home LAN with what used to be a debian-based firewall/masquerade server, however we recently borrowed an ISDN router while we sorted out some issues with the previous ISDN modem. The firewall machine (192.168.0.1) is still set as the gateway for all the home machines, with its gateway set to be the router (192.168.0.2). I've noticed that rather than the router taking the whole packet and forwarding it to the router, it seems to send ICMP redirect messages to the originating machines telling them to use 192.168.0.2. Looking at the frequency of these messages (around 5/sec) I'm assuming that these get sent every time a new connection is attempted to be made. However, I've noticed that the W2K boxes we've got change their routing tables to have 192.168.0.2 as their gateway. Does anyone know a) is this usual behaviour for any TCP/IP stack? b) do the machines ignore the "real" (192.168.0.1) gateway when they make a new connection? c) if so, can I stop this behaviour?
(the reason for this is that we don't want the line to come up during the day as we have to pay for this, and use the gateway machine to control access to the router via cron manipulating the routing tables) Cheers, Gareth -- Gareth Bowker | [EMAIL PROTECTED] PhD Research Student | http://users.aber.ac.uk/tgb96/ Space Robotics Team | Office: (01970) 621528 University of Wales, Aberystwyth | Mobile: (07971) 219986
