IPV6 stuck on, F11

[Bill Murray]

  Hello all,
     name lookups suddenly no longer work for me on F11. I have not used
this machine since 12th July,
but some updates (e.g. rpcbind) have occurred. Now I have big problems; e.g.
evolution,
thunderbird and ssh do not work. I can force ssh to work by typing the IP by
hand.
Firefox could not connect to host. But I discovered that if I set
network.dns.disableIPv6
then firefox works.

So I blame IPv6, and examine my settings. There is a toggle box in
system-config-network,
for IPv6, but whichever way I set it I get:

/sbin/ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:0F:FE:DB:DD:57
          inet addr:137.138.27.187  Bcast:137.138.255.255  Mask:255.255.0.0
          inet6 addr: fe80::20f:feff:fedb:dd57/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:38327 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27526 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:49820676 (47.5 MiB)  TX bytes:2575272 (2.4 MiB)
          Memory:f0200000-f0220000

dig , host and nslokup all work
charles zeitler  may have had a similar issue a few weeks ago?

  Ideas anyone please?
      Bill
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