I have a remote VPN setup to connect to a VPN-1 Secure Server with a private
IP address. This traffic must get tunnelled thru my FW-1 4.1 SP6 firewall,
where a manual NAT takes place on this connection. The goal is for an
end-to-end encrypted connection for remote site VPN access directly to the
VPN-1 Secure Server.

The remote site uses a SonicWall firewall and is able to reach the VPN-1
Secure Server. The encryption setup is IKE, SHA1,and ESP with pre-shared
secret. Phase 1
of the negotiation completes successfully, but the logs reveal: IKE Log:
Received Notification from Peer, no Proposal Chosen.

The SonicWall log reveals: NAT Discovery: Peer IPSEC Security Gateway does
not Support VPN NAT Traversal.

Is there a fix for this like maybe an entry added to the Objects.C file on
the Management Server?

Many thanks for your feedback.

John

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