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Telnet through firewall

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5 replies

by gua

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Hi.

If you are reading this, I would be very appreciated if you could help me.

I have a firewall socks connecting our client desktops PCs to a Cisco router (using IOS), which in turns connected to the Internet.

Right now, I am trying to find ways to telnet to my router. The problem is that each time I opened a telnet port at my socks firewall, the firewall crash.

What happened actually ?

5 replies

by corr

We would probably need more information about the kind of firewall you are running. Is it a hardware based firewall like SonicWall or is it a software based firewall like CheckPoint. Revision levels and stuff like that would also probably help...

by erdo

Yes it would help to know some details about your configuration.

On the other hand, it is probably a matter of resources or specific settings that need to be realigned. Some firewall parameters that allocate resources, such as memory buffer spaceconflict with Sisco IOS. Especially with Sentri and Pix firewalls.

Since you did not provide the specifics, you may want to research the cisco.com site and perform a search by key phrase "firewall crash". This will provide you a list of documented problems with firewalls and IOS.

Hopefully you find a solution there. If not, please provide additional details to your problem.

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