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Pass Client to Site IPSec VPN Tunnell Through Pix 6.3x

Posted on 2006-10-26
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Last Modified: 2013-11-16
I am trying to allow a client to site VPN tunnell through a PIX Firewall (version 6.3x).  Can anyone shed any light?
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Question by:jhartlov
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lrmoore earned 375 total points
ID: 17814804
Depends. What client are they using?
Do you have your own VPN configuration for external users to VPN in, or have a site-site VPN tunnel?

2 things to try:
 isakmp nat-traversal 20  <== other end must be setup to allow allow clients to use nat-traversal
 fixup protocol ike-esp <== can't use this if you also have VPN's on your PIX

Else, give this client a 1-1 static nat if you have enough public IP addresses.
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by:jhartlov
ID: 17814827
I am using this to terminate site to site tunnels as well as to terminate client to site tunnels.  Not looking good?
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by:jhartlov
ID: 17814872
Would it be easier if I were to upgrade this box to PIX v7?
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Expert Comment

by:lrmoore
ID: 17815186
7.0 does not provide any advantage in this regard.
What client software are they using? A 1-1 static nat will fix the issue..
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by:jhartlov
ID: 17815983
isakmp nat-traversal on the other end did the trick!  Thanks!
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