I've been working at this for a little while now and here's what I've found out.
I installed debian 2.1r4 over my redhat 5.2 firewall. The installation worked well, and I was able to install packages via apt, upgrading to potato, from http://http.us.debian.org and other sources without difficulty. When I rebooted my machine after the upgrade to potato, the networking ceased to function. I then tested on a dual boot redhat and corel linux machine, and found that I can ping my gateway from RedHat, but not debian. (The corel linux box is essentialy slink with a 2.2 kernel.) Therefore the issue is not hardware specific, nor specific to potato. I searched the lists and found a post by David Wright which suggested that there was a problem with the 2.2.x kernels and the arp cache under slink. Basicaly, when the arp entry was published it killed the hardware address on his machine. I'm not certain that this is what's happening with my machine, but the my symptoms are similar. I've checked to see that the firewalling rules were ok. ipchains -L shows policy accept for all chains. Therefore this isn't the case. Iplogger shows the following lines in it's log file for all the ping's I attempt to send to my gateway. destination unreachable from my_ip_addr I've commented out the ALL: line from /etc/hosts.deny The routing table and interfaces are configured properly # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface x.x.33.x 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 x.x.32.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 x.x.32.1 0.0.0.0 UG 0 0 0 eth0 # ifconfig eth0 Link encap:Ethernet HWaddr 00:00:6A:49:5A:E8 inet addr:x.x.33.x Bcast:x.x.33.255 Mask:255.255.254.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:50915 errors:0 dropped:0 overruns:0 frame:0 TX packets:43538 errors:0 dropped:0 overruns:0 carrier:0 collisions:3234 txqueuelen:100 Interrupt:9 Base address:0xe000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:3924 Metric:1 RX packets:228 errors:0 dropped:0 overruns:0 frame:0 TX packets:228 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 The next step I can see is to take the route and ifconfig binaries from my redhat machine and use them under the deb machine to see if the problem lies in the binaries I am using. Does anyone have any ideas as to what I've missed/done wrong? Chris ------------------------------------------------------------------------------- Chris Gorman [EMAIL PROTECTED] Linux the choice of a GNU generation -------------------------------------------------------------------------------