how to troubleshoot VPN's

Unanswered Question
Sep 25th, 2008
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Hi,


I would like to know if anyone has any tips on troubleshooting L2L (and RA) VPN's. I usually use the ASDM wizard to create the VPN's and when it doesn't work, it get's messy.


I usually run the following debug:


no debug crypto isakmp 127

no debug crypto ipsec 127


Is there any way to determine why a tunnel is not coming up? anything with the ASDM?


The L2L config is fairly standard, nevertheless sometimes it doesn't work.


Any tips on troubleshooting and bringing a tunnel up.


Much appreciated.

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JORGE RODRIGUEZ Thu, 09/25/2008 - 08:48
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Roni,


This two links will provide with substatial information on how to and what to look for

on Ipsec tunnel issues either l2l or RA vpns.



Most common L2L problems

http://www.cisco.com/en/US/products/ps6120/products_tech_note09186a00807e0aca.shtml



Debugging IPsec

http://www.cisco.com/en/US/tech/tk583/tk372/technologies_tech_note09186a00800949c5.shtml


HTH

Jorge


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