Seeing LAn not seeing WAN

[andres]

Hi Folks,

I have fedora setup and networking locally;
I have the correct address for the default gateway and correct address for the name servers in the /etc/resolv.conf.
I can ping and link to any LAN server and I can ping the router internal interface.

However I can only ping the internet immediately after the router refreshes its arp cache -- once I stop the ping the link to the internet is lost and ping failes


Please Help me ob1 your my last chance.

[andres]

Please any suggestions will help

[Prometheus]

hummmmm, very interstering. It may be that your router is blocking some of the necessary ports for seeing the WAN. Another possibility is that Fedora itself is blocking some of the ports that you need to see the WAN. Easiest way to check would be find out what ports Fedora needs, and checking your router's config from another machine and seeing if those ports are open. That's probably your best bet is that the router is blockign it. HOpe this helps.

If memory serves, i believe princess leia said "Please help me ob1 kenobe, you are our only hope." Gotta love starwars.

[andres]

I'll look into the port dependancy. thank you.

[andres]

I sniffed the network while running a ping and teh fedora box is pinging a different address to the one I typed in???????
wow -- any ideas on how this happens?

ignore this -- some one else was messing with teh box

[andres]

The port are associated to applications and ping is icmp which is the same on windows and linux.

[andres]

I have noticed that the fedora machine loses is arp table or has an incomplete mac address for the gateway router.

How can I create a perminent entry in the arp table for the router and does any one have any idea why its loosing part of the mac address?

[andres]

Also we have now built 2 fedora desktop boxes and a notebook and experience the same behavior on all of them -- all of our windows boxes can see both the LAN and the WAN all the time just fine?