router rip not working

Unanswered Question
Apr 13th, 2007

I'm using version 2, no auto summary and cant get network and network to route with network The routing tables are full and seem correct but windows cant file share between them but they can surf the net. When I use [email protected] some computers keep dropping off the LAN and then come back on a minute later. Any ideas what is wrong. I'm not using NAT.

I have this problem too.
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tman75100 Mon, 04/16/2007 - 06:18

Here are the config files, the routing tables are all the same and 10.50 and 10.70 have been changed to 172.16 and 172.17. I can share files betwwn machines but I still have computers dropping off and on the LAN.

The attachments are simple text files


scottmac Sat, 04/14/2007 - 05:55

Check the software firewalls on the hosts. Make sure they allow connections from the other subnets.

Good Luck


xianglingzj Sat, 04/14/2007 - 10:03

"some computers keep dropping off the LAN and then come back on a minute later" Looks like physical layer problem. Check if the Switchport/NIC is faulty by try to swap them.

tman75100 Thu, 04/19/2007 - 07:11

I solved the dropping off the LAN problem by using NAT but I still cant get to one computer that uses our PIX firewall as its gateway. Everyone uses a different gateway but they all can see the computer that uses the pix as its gateway. I'm not trying to go through the PIX.

Any Ideas?? I plan on rearranging our switch configuration to solve any physical layer problems there might be but I still would like to know why I can see the inside interface of the pix but cant get to a computer inside the LAN using it as its gateway

jasonrandolph Thu, 04/19/2007 - 15:24

PIXes by design do not allow a packet to ingress and egress on the same interface.

If a host attempts to use the PIX to redirect its traffic to another network that is routed out the same interface it the packet on the PIX will discard it.

dbellaze Thu, 04/19/2007 - 16:34

In order to re-direct traffic on the same interface on the PIX/ASA you need to be running 7.2 code or later and use the following command to allow that communication.

same-security-traffic intra-interface

The best solution is to try and get things straightened out as much as possible. You can only band aid for so long before you are forced to do the right thing anyways :)


tman75100 Thu, 04/19/2007 - 19:40

Thanks for the help

I actually fixed the problem by entering routes into the actual server connected to the pix's inside interface. Now I can get to that computer with out any problem. I will try the

same-security-traffic intra-interface

command but want to know how to turn that command off if it causes havoc on the network. would it be

no same-security-traffic intra-interface?


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