Unable to access to LAN with VPN with some ISP

Answered Question


We have a VPN Remote Access IPSEC with an ASA5505. The VPN etablish correctly but we can't access to the Inside or to the ASA from my office.

But at home with an other Internet Service Provider it works ! We can access to the inside.

We try with other ISP and it works with 2 and doesn't work with 2 others !

At the office we have also an ASA5505, but we have other VPN on other sites which work correctly.

Any ideas ?

Thank you and sorry for my English.

Correct Answer by acomiskey about 8 years 10 months ago


crypto isakmp nat-traversal

That should do the trick! Please rate if it helps.

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Overall Rating: 5 (1 ratings)
acomiskey Fri, 04/25/2008 - 07:01

Check config for...

isakmp nat-traversal


crypto isakmp nat-traversal


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