Mixed Firewalls VPN Challenge

Hi All,

I have a big challenge. My customer have laptops on road and need to do service at different location. Those location have their own VPN and Firewall. By having different firewall/VPN we need to have many VPN client on our laptops. Also, our Cisco need to have a the VPN site to site with a customer up all the time.

VPN Clients who work on a Laptop:
Microsoft VPN Client and SafeNet (WatchhGuard) = OK
Microsoft VPN Client and Symantec = OK
Microsoft VPN Client and Cisco = OK

VPN Clients who don't work on a Laptop:
SafeNet (WatchhGuard) and Symantec = NO
SafeNet (WatchhGuard) and Cisco = NO
Cisco and Symantec =  NO

So I am looking to have a generic VPN Client to connect to all remote location without changing to firewalls!

Any ideas!

Thanks