[SOLVED] Google only browsing

timktaylor · 10-08-2009, 04:31 PM

My routing table cycles between:

Code:

[root@linux8538 ~]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
c-71-57-0-1.hsd 192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
192.168.1.134   192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
www.redhat.com  192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
wildcard.fedora 192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
192.168.1.0     *               255.255.255.0   U     1      0        0 eth0
default         192.168.1.1     0.0.0.0         UG    0      0        0 eth0

and...

Code:

[root@linux8538 ~]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
71.57.0.1       192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
192.168.1.134   192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
209.132.177.50  192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
209.132.176.120 192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
192.168.1.0     *               255.255.255.0   U     1      0        0 eth0
default         192.168.1.1     0.0.0.0         UG    0      0        0 eth0

It seems to cycle every few minutes or so. In the latter my ability to reach my nameservers is lost, as well as, the ability to ping a local wired windows box (192.168.1.134)

Any idea what is going on with this?

timktaylor · 10-09-2009, 11:28 PM

Many thanks to all.

The problem didn't kill my curiosity or my Linux spirit. I am a great deal more aware of network traffic, routes, troubleshooting and management now (thanks to this problem).

After I got my routing tables stable and persistent, converted my addressing to static rather than DHCP, and disabled NetworkManager, I tried the MTU step down and voila! 1400 made all the web sites work finally.

I am going to return to DHCP and NetworkManager to see if I can isolate the fix to strictly MTU. If that is the case, my routing table must have kept that from fixing things before.

I will post my findings here for future souls desperately searching for an answer.

regards,
tt