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Strange Router/firewall ping interaction

I have this network set up:

site 1(192.160.2.0/24)---Cisco 2600----T1 circuit-----Cisco 2600-------site 2(192.168.0.0/24)
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Smoothwall Firewall
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DSL Circuit

I can ping from site 1, out the DSL circuit or anywhere on the Site 2 network with no problem. From Site 2, I can ping the Internet for somewhere between 40 and 70 pings before it begins to time out. If I then ping the firewall internal port once, I can ping the Internet 40 to 70 times again. If I connect directly to the firewall I can ping the Internet cintinuously with no problems. I'm stumped. Anyone have any ideas?

Rick

Les Moore

What is the default gateway for hosts in site 2? Is it the C2600 or the Smoothwall?
What is between the C2600 and the Smoothwall? Is it a switch?

BigfootSunRa

ASKER

The router port facing Site 2 is 192.168.0.1 and is the default gateway for workstations in Site 2. The Cisco 2600 is directly connected to the Smoothwall. There is a Dell Powerconnect switch between the router and the workstations in Site 2. To rule that switch out we replaced it with a Cisco switch with no change in the result. The Cisco 2600 nearest Site 2 is also providing DHCP to Site 2.

BigfootSunRa

ASKER

I think this problem turned out to be an unusual configuration in my firewall using a secondary IP address on an interface. Once that was removed the problem cleared itself. Now, if someone will tell me how to close this I will. Thanks.

BigfootSunRa

ASKER

The problem was the firewall config. I figured it out, thanks.

ASKER CERTIFIED SOLUTION

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