[Openswan Users] Windows 7 IKEv2 no reaction at all

Neal Murphy neal.p.murphy at alum.wpi.edu
Mon Aug 8 22:27:58 EDT 2011

On Monday 08 August 2011 22:23:05 Kevin Keane wrote:
> I haven't followed this discussion, so if I repeat something you already
> tried, forgive me.
> Check what program is actually listening on UPD ports 50, 500 and 4500:

A gentle reminder: one uses ports 500 and 4500 for IPSEC and NAT-T, 
respectively. It is *protocol* 50 that must be passed through the firewall (or 
allowed into the firewall if the VPN server runs on the F/W) in order for 
IPSEC to function.


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