[FW-1] NG to Cisco router VPN setup.

["<Gary Hodson>" <Gary.Hodson@FW1-NOSPAMGARTMORE.COM>]

I've now got it working... looks like a bug between cisco and checkpoint.

On my encrypt rule if I turned on PFS I got a message stating that my
gateway was PFS but the peer wasn't PFS, even though it was switched on on
the cisco at the other end.

Turning off pfs on my encrypt rule got me back to the "no proposal chosen
error". Once we turned off PFS on the cisco the link established
immediately.

We tried using PFS groups 1,2, and 3 on both devices but my NG box still
stated that the Cisco was not PFS, even though it was.

I know it's not ideal, but the link is up.

Going to try and get some sense out of checkpoint and cisco on this one.
watch this space

Any ideas, anyone.

Gary





----- Forwarded by Gary Hodson/GB/GARTMORE on 31/07/2003 17:13 -----
|---------+---------------------------------------->
|         |           Gary Hodson                  |
|         |           Security Services Mgr        |
|         |           Dept: Information Systems    |
|         |           Tel: +44 (0) 20 7782 2048    |
|         |           Loc: 4 GH                    |
|         |                                        |
|         |           Sent at: 31/07/2003 12:56    |
|         |                                        |
|---------+---------------------------------------->
  >------------------------------------------------------------------------------------------------------------------|
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  |To:     FW-1-MAILINGLIST@AMADEUS.US.CHECKPOINT.COM                                                                |
  |cc:                                                                                                               |
  |bcc:                                                                                                              |
  |Subject:   NG to Cisco router VPN setup.                                                                          |
  >------------------------------------------------------------------------------------------------------------------|



Can anyone help please.

I'm trying to setup a VPN between my NG (FP3 HF2) firewall and a cisco
router. I'm using traditional mode on my end, and am fairly confident (95%)
that my config is correct. I have a number of other checkpoint to
checkpoint VPNs running from the same box and they work fine.

Anyway, I get the following key exchange messages in my log; IKE: Main Mode
completion.
Which is immediately followed by; IKE: Quick Mode Received Notification
from Peer: no proposal chosen

I think that it's to do with the "ENCRYPT" action properties on my end.
i.e. you don't appear to be able to select ESP, etc under NG whereas you
could under 4.1.

I managed to find a few other posted messages where people have had the
same problem, but what i can't find is if anyone has the solution.

All help is greatly appreciated.
(I'm officially now pulling my hair out with this one.)

Gary










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