FW to FW vpns

[Sandy Harris]

Olivier Bekoin wrote:
>
> Hi,
>
> I have my VPN server behind my firewall I would like to know what ports
> for what protocols or what things I can do to allow firewall to firewall
> VPN to my 2 sites.
> Can any1 tell me
>
If it is an IPSEC VPN, you need to pass UDP port 500 for the IKE negotiations
and at least one of protocols 50 (ESP) and 51 (AH).

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