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Problem with Cisco 1721 + ACS 4.0 and VPND windows users auth

Hello,

I used this example for making VPND server with radius auth for WinXP SP2 users - http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_configuration_example09186a008009436a.shtml

But users cant pass auth - in ACS logs i see what everything is ok - status in passed auths is - Authen OK.

Debug output and config file are in attach.

Thanks in advanced.

2 REPLIES

Re: Problem with Cisco 1721 + ACS 4.0 and VPND windows users aut

debug indicate that radius is responding, and in debugs we can see,

"RADIUS: response-authenticator decrypt fail, pak len 126"

Device is somehow not able to decrypt the response. Generally its due to shared secret mismatch. But I don't think that's the case.

Please check if this applies,

CSCsh02500 : L2TPv2 calls fail when receiving hidden AVPs

Regards,

Prem

New Member

Re: Problem with Cisco 1721 + ACS 4.0 and VPND windows users aut

Hello,

1st - i checked key between cisco and ACS (because found a lot of examples of this error), after this i checked also users and passwords - because this group in ACS is maped to Windows AD.

L2TPv2 calls fail when receiving hidden AVPs ???

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