Hey Gurus,
I've been having one extremely strange problem with a Site-to-Site VPN.
The VPN is being established via a Leased-Line (not over the Internet) between
our Firewall (Check Point Firewall-1/VPN-1 R55W AI)
and a CiSCO VPN Concentrator 3000 on the Client Side. What happens is that if
the line between us goes down for a reason, our side
fails to identify that, so, it keeps encrypting the data without re-negotiating
for new keys. The only way for the VPN to be
re-established is to manually clear my keys through "vpn tu" and then send then
some traffic. After that, the VPN goes up again.
Now, I've never seen this happen before and I've got no problems at all with
the rest of my remaining 40+ Site-to-Site VPN's with
other Clients through the Internet. This issue only happens with them. I also
have 2 additional VPN's with other CiSCO VPN
Concentrator(s) 3000 without any problems.
Has anyone seen this before? Is there something I can do?
Cheers,
Dimitris
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