Hi, typically the "No proposal chosen" message indicates incompatibilities between the encryption domain definitions, e.g. 10.20.0/16 and 10.21.0.0/16 will be summarized by the checkpoint to 10.20.0.0/15 and the remote gateways (ciscos in particular) often handle networks in a different way.
So review your network definitions in detail and/or use ikeview - the "quick mode" section that is followed by the info line displaying the ""No proposal chosen" message shows you the network mask used for the handshake by your checkpoint. Compare this mask with the one used by the PIX, it has to match ... Hope that helps, regards René Ramakrishnan Pillai <[EMAIL PROTECTED]> Gesendet von: Mailing list for discussion of Firewall-1 <[email protected]> 15.12.2005 03:29 Bitte antworten an Mailing list for discussion of Firewall-1 <[email protected]> An [email protected] Kopie Thema Re: [FW-1] VPN between R55 and PIX Thanks. Compared all the properties of PIX and R55. The "Support key Exchange for Subnets" is already checked. Still no luck. Same message...RK >>> [EMAIL PROTECTED] 12/14/05 5:37 PM >>> In SmartDashboard, go to the interoperable device object Properties (representing PIX), look for VPN - VPN Advanced and uncheck the box: "Support key Exchange for Subnets" I hope that helps. Regards, Oliver. --- Ramakrishnan Pillai <[EMAIL PROTECTED]> escribió: > Thanks for the detailed reply. Let me cross check > everything...RK > > >>> [EMAIL PROTECTED] 12/14/2005 > 10:45:06 AM >>> > Parameters are not identical. I've run into this > many times. For example, if policy on PIX ends up > offering you DES/3DES/MD5/SHA1 (Phase-1), but the > Interoperable Device representing the PIX has been > set up for 3DES/SHA1, it will fail. You got to match > exactly, not just have a match. Painful, but there > you have it. Also check DH-groups, timeouts, > PFS-or-not for Phase-2, and ideally don't choose > Aggressive. > No proposal chosen is likely Phase-1 settings. If it > was encrypt domain, you'd see "no valid SA". Could > also be encrypt settings Phase-2, but that's less > common - transform sets are specific to a tunnel, so > control is better. Policies are not, and that leads > to a "VPNs are like a box of chocolates" situation. > > If you are being supported by a CSP, run vpn debug > trunc, get the handy ike.elg, and have them run it > through IkeView. That will show you exactly what's > going on and make short work of this issue. Could > also use tcpdump and ethereal for phase-1 issues, > but that's only get you halfway through the exchange > - once encryption starts, you're blind. Ethereal > won't help with Phase-2; IkeView will. > > Good news is: This will come up once parameters > match 100% on both sides. > > > -----Original Message----- > From: Mailing list for discussion of Firewall-1 > [mailto:[EMAIL PROTECTED] > Behalf Of > Ramakrishnan Pillai > Sent: Wednesday, December 14, 2005 10:15 AM > To: [email protected] > Subject: [FW-1] VPN between R55 and PIX > > > While doing a site-to-site between R55 and PIX we > are getting "Message from peer: No proposal choosen" > at checkpoint end. Using preshared secret and all > parameters are identical. Any idea where to check > for. > > Thanks in advance. > RK > > > ================================================= > To set vacation, Out-Of-Office, or away messages, > send an email to [EMAIL PROTECTED] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [EMAIL PROTECTED] > ================================================= > > > Please note that: > > 1. This e-mail may constitute privileged > information. 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