NDPTAL85 wrote: [summarized] > > After about a week of taking my Mandrake 8.1 box off of DHCP and giving > it its own permanent IP it can no longer resolve domain names when using > that IP. When I switch it back to DHCP it starts working fine again. I > am using kernel 2.4.13-12mdk. Has anyone else come across this problem?
> eth0 Link encap:Ethernet HWaddr 00:C0:A8:F2:40:B1 > inet addr:192.168.0.2 Bcast:192.168.0.255 Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:78 errors:0 dropped:0 overruns:0 frame:0 > TX packets:92 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:100 > RX bytes:8568 (8.3 Kb) TX bytes:12311 (12.0 Kb) > Interrupt:11 Base address:0xbc00 > [root@Dreadnaught root]# route -n > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use > Iface > 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 > eth0 > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 > lo Missing "default" route. > search earthlink.net > nameserver 207.217.126.82 > nameserver 207.217.77.81 > nameserver 207.217.120.83 Someone pointed out dyslexia; but you have no route to 207... > I have 3 other comps behind this router. I can still ssh into the > Mandrake box when its on its permanent IP (192.168.0.2) but it cannot > resolve anything from that IP. The router isn't set to block anything > unusual. All other comps can connect to the next just fine. Its just the > Mandrake box. I am going to switch one of my other comps to 192.168.0.2 > to rule out that specific IP as being a problem. Which only means that the other comps have default routes and this one does not as evidenced above. > Alright I just put a WinXP box on 192.168.0.2 and it was able to resolve > domains just fine. So its not the router thats blocking anything. I'm at > a loss here to what just "broke". I still don't know why it can resovle > when its on DHCP but can't when I put it on 192.168.0.2 manually. Unless you have a default route, the ONLY networks you can reach with the above route table are: 192.168.0.* 127.*.*.* Nothing else... nada... zip! Not even the DNS hosts cuz they are all in network 207.* which is NOT in your route table. Without a default route, all the other destinations won't even make it onto the wire to the router. Regardless of the destination: no route == no traffic. See "man route". Troubleshooting tip: when something works one way but not another, put all the collected data side-by-side and compare... betcha you have a default route in the DHCP setup... while we can see from above that there's none in the static config. Pierre
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