I just bought a new wireless router to replace a dying old thing. It's a Netgear N300 wireless router that also has 4 downstream "fast" ethernet ports. I used an Ubuntu (10.4.1) machine to configure it by running the CD that came with it, with the Ubuntu machine wired to one of the downstream ports. During the process, it told me there was a firmware update, which I duly had it download. This process told me that in order to avoid conflict with my ISP it was changing it's own IP to 10.0.0.1. Because its upstream was actually a router of mine, and there's another one I suppose it was avoiding having both use 192.168.1.255. In any event, I now cannot get the ubuntu machine reconfigured. I try and try, and I still don't get the right stuff. Right now, it responds to 'ifconfig' with what I think is correct: % sudo ifconfig eth0 Link encap:Ethernet HWaddr 00:23:ae:0e:75:c9 inet addr:10.0.0.2 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: fe80::223:aeff:fe0e:75c9/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:489 errors:0 dropped:0 overruns:0 frame:0 TX packets:2602 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:52829 (52.8 KB) TX bytes:112384 (112.3 KB) Interrupt:16 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1955 errors:0 dropped:0 overruns:0 frame:0 TX packets:1955 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:191358 (191.3 KB) TX bytes:191358 (191.3 KB) However, the routes are messed up, and I cannot get System->Preferences->Network Connections to save changes to routes, and they look like this %sudo route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 64.166.164.54 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 10.0.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0 0.0.0.0 64.166.164.54 0.0.0.0 UG 0 0 0 eth0 Of which only the second line makes sense. Mind you, the rest made sense when this thing was running in its prior regime, I just can't get it to go away and allow me to put the right stuff in there. I want to ditch all route lines that have IPs starting with 64 or 169. I want the default gateway to be 10.0.0.1 (the router) BTW, the router's upstream is a static IP, which is working fine for the machines that connect to it wirelessly. Unfortunately, this ubuntu machine is a laptop I dropped a while back, with casualties to the hinges and the wireless. It's been repurposed as a desktop, and I need the wired network to work. For reasons of geometry, I don't have a long enough cable (30' or so) to connect it directly to the other network equipment, but even if I did, I'd like to learn what I'm missing about Ubuntu network setup. So I want to solve the problem, not work around it. Help, anyone please. I'll RTFM if you point me to the right one. -- Kevin O'Gorman, PhD