You can create custom sets on the SSG so you can simply use the default on the WatchGuard and build a matching proposal set on the SSG:
Web menu:
VPN > AutoKey Advanced > P1 Proposal
VPN > AutoKey Advanced > P2 Proposal
You can create custom sets on the SSG so you can simply use the default on the WatchGuard and build a matching proposal set on the SSG:
Web menu:
VPN > AutoKey Advanced > P1 Proposal
VPN > AutoKey Advanced > P2 Proposal