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ports required for vpn pass thru using 3des

tim.devries
Level 1
Level 1

What are the ports required to open on a firewall if you are using 3des for encryption? Is it udp Isakmp, and esp only?

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nsteup
Level 1
Level 1

Yes.

Only udp 500 (ISAKMP), packet type 50 (ESP) and if used packet type 51 (AH) is used.

Regards Norbert