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New Member

VPN: ping is bidirectional; telnet only works one way

I need some directions for troubleshooting a router to router (LAN-to-LAN) vpn over the I-net.

I can successfully ping from either direction.

I can only establish telnet connectivity from hosts going in one direction.

The following show command on one of the routers appears wrong and I don't know what it means:

#sh crypto engine connection active

ID Interface IP-Address State

1 none none set

Algorithm Encrypt Decrypt

HMAC_MD5+DES_56_CB 0 0

Can someone please educate me why <none> would be where I expect an ip address?


Robin Nicholson

New Member

Re: VPN: ping is bidirectional; telnet only works one way

I know part of the answer. I now understand that the "none" I get in ID 1 is because of a previously established vpn in the set that no longer exists.

I think that perhaps my VPN link is being circumvented by the port I am connected to at the ISP, if that is possible.

If anyone has insight or experience, I am still stuggling.

Please advise.

Robin Nicholson

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