Try these
1) Ping your router
Method: In an open terminal (xterm, rxvt, konsole), type "ping 192.168.0.1" (replace with your router's IP address
IF FAILED: Strange, if you can see your windows machines and not your router it's probably a problem with your router's configuration.
>>Worked fine
2) Ping the external IP of your router (on a windows machine type "tracert
www.google.com", a list of IP addresses will come up, the first should be the IP of your router. Should look similar to this:
>>command not recoginized on Linux. XP maching provide the full trace.
quote:
--------------------------------------------------------------------------------
traceroute to
www.google.com (216.239.59.104), 30 hops max, 40 byte packets
1 10.0.0.2 15.497 ms 16.952 ms 18.552 ms
2 host-212-158-192-228.bulldogdsl.com (212.158.192.228) 20.223 ms 20.357 ms 21.080 ms
3 host-83-146-17-33.bulldogdsl.com (83.146.17.33) 25.371 ms 27.314 ms 16.236 ms
...
--------------------------------------------------------------------------------
My external address in this case is 212.158.192.228
IF FAILED:
routing problem. Run "route" adnd put the output on this forum. You may neet to be logged is an root to do this. It should say something like this
quote:
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Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.0.0 * 255.0.0.0 U 0 0 0 wlan0
default 10.0.0.2 0.0.0.0 UG 0 0 0 wlan0
--------------------------------------------------------------------------------
If you don't have the "default" line, then you've got a routing problem. The simple way is "route add default gw 10.0.0.2" (replace 10.0.0.2 with your router IP address, but that's not permament.
3) On your linux macine, ping 144.173.6.8 (a machine at Exeter University, UK), which checks your external connectivity
>> This worked just fine.
IF FAILED: run "traceroute 144.173.6.8", and see which the last IP address if gets too. This might also be a routing problem
If those work
4) Try "ping
www.google.com", this should resolve an IP address, basically look up the name in the internet phonebook. It should come up with
quote:
--------------------------------------------------------------------------------
PING
www.google.akadns.net (66.102.9.104) 56(84) bytes of data.
--------------------------------------------------------------------------------
If that fails, but the previous steps dont, you've got a problem with name resolution - your DNS server. Put the output of "cat /etc/resolv.conf" here.
>> I couldn't find any such file. However I think you have helped narrow done were the issue is. Thanks.
Not sure how Redhat sets up network cards though