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Pix firewall for IPSEC VPN BEHIND a NAT router, which ports to pass?

Posted on 2006-06-26
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Last Modified: 2013-11-16
I have a network inside of a network which is connected to the internet via a NAT firewall. I don't want to pass ALL ports (DMZ) to the inside pix firewall, so if I want to use Cisco's IPSEC client, which ports do I need to pass in order to make it work? Thanks.

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Question by:it2gostl
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stressedout2004 earned 2000 total points
ID: 16987227
You need the following ports:

UDP 500
UDP 4500
Protocol ESP
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by:it2gostl
ID: 16987865
Thanks!!
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