Sonic VPN connections - Security, hacker detection

The log message "Received notify: No_Proposal_Chosen" indicates there is a mismatch of proposals during phase 1 or phase 2 negotiation between a site-to-site VPN. Logs on Initiator. RESOLUTION: The logs on the Responder SonicWall will clearly display the exact problem, ensure that the Proposals are identical on both the VPN policies. Logs on Solved: ipsec vpn - no proposal chosen - Cisco Community ipsec vpn - no proposal chosen I am using the vpn client of win7 system, is it not supported? and my configuration: aaa authentication ppp default local!! aaa session-id common. ip source-route. ip cef! no ip domain lookup. no ipv6 cef! multilink bundle-name authenticated. vpdn enable! How to troubleshoot the VPN Error No Proposal Chosen

The SonicWall was complaining of "no proposal chosen" meaning your P1/P2 settings are not matching on both sides. Just quick glance at your SonicWall config looks like you're running an unusual timeout on phase 2, but once you changed it to a more standard value, it started working.

I am trying to setup Site to site VPN. I am getting: Received notify. NO_PROPOSAL_CHOSEN in Sonicwall logs and the VPN is not setup. It looks like the phase 1 is OK as I am getting: Info VPN IKE IKE Initiator: Start Quick Mode (Phase 2). SONIC_WALL_IP, 500 CISCO_IP, 500 VPN Policy: test in the sonicwall logs just before NO_PROPOSAL_CHOSEN message. Oct 31, 2014 · Learn about how to troubleshoot the VPN Error: No Proposal Chosen, “SonicWall video solutions” https://fuzeqna.com/sonicwallkb/ext/kbdetail.aspx?kbid=3902 VPN Peer treats the Security Gateway 80's certificate as User Certificate, which ends with failure since Security Gateway 80 is not a user. As a result, the VPN Peer drops the connection in IKE Main Mode packet 5 for "no proposal chosen". Solution: This problem was fixed. The fix is included in: Check Point R77

Apr 28, 2015 · A VPN tunnel comes up when traffic is generated from the customer gateway side of the VPN connection. The virtual private gateway side is not the initiator. If your VPN connection experiences a period of idle time (usually 10 seconds, depending on your customer gateway configuration), the tunnel might go down.

1)I am attempting to setup a site to site VPN connection from this location to another in Michigan (this is offsite, I don't have access to their equipment). I use a Watchguard Firewall and we're using the IPSEC protocol. 2)On my end, I have the VPN connection setup and have configured the gateways, tunnel, and routing policy. Otherwise you will get "NO PROPOSAL WAS CHOSEN" when trying to negotiate phase 1. Always have your log file open when trying to debug these connections. Also, be wary of mapping multiple networks behind the Sonicwall, each has to build its own contract. Please contact me if you need help with your connection.