I'm looking to replace my WatchGuard Core X1250e with a SonicWALL NSA5500. I have 200+ users that use the WG MUVPN client to connect remotely to my network daily. My question is: Is there a way to do a gradual migration from WG to SW with both devices on the network at the same time? While this seems to be a potential disaster, it would allow the migration of remote users to move to the new SW firewall via the Global VPN Client (GVC) in advance of a cutover. Yes, we could look at implementation of the Aventail SSL solution, but that is budgetted and scheduled for later this year. It is the remote users that concern me in the case of a hard cutover. However, I see having issues with routing, especially with 2 gateways. But, if there is a fairly reasonable way to do it, I'm all for it.
On a side note, is there a way to migrate the config from WG to SW?
Thanks for any assistance.