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Allow CheckPoint SecureClient connection though PIX 501

Posted on 2004-10-03
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Last Modified: 2013-11-16
What are the exact configuration changes necessary to allow a Check Point SecureClient to connect to a VPN while behind a PIX 501? Or before the question can be answered what info do I need.
SecureClient gives me 2 NAT traversal mechanisms
1) Support IKE over TCP
2) Force UDP Encapsulation

Pix Version 6.3(1)
PDM Version 3.0(1)
Inside Interface 139.126.X.X
Outside Interface PPPoE (66.220.x.x)
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Question by:awgooch
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Expert Comment

by:lrmoore
ID: 12212282
1) upgrade PIX to 6.3(3) to enable nat-traversal
2) use the command "isakmp nat-traversal 20"
3) set client to force UDP encap (requires configuration on the Check Point end to allow this)

Alternative to upgrading:
1) Create a static 1-1 nat map using a spare public IP
2) set client for either TCP or UDP (depending on how the Check Point end is set up)
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Author Comment

by:awgooch
ID: 12212482
Can you tell me more about the static 1-1 nat map using a spare puplic IP?
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Accepted Solution

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lrmoore earned 125 total points
ID: 12212571
If you have another public IP that you can use besides the interface, you can do this:

static (inside,outside) <public IP> <private ip> netmask 255.255.255.255

ie.

static (inside,outside) 24.56.78.9 192.168.100.100 netmask 255.255.255.255
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