Replacement VPN router for a Symantec Firewall/VPN Appliance 100

Symantec discontinued this product line and I need to find a suitable
replacement for a unit that died. This unit was used in a remote
office to provide a VPN point to point tunnel with another Symantec
VPN Appliance. My main concern is that whatever I get to replace it
will be compatible with the remaining Symantec VPN 100 appliance and
I'll be able to set up the point to point VPN tunnel again. Any
suggestions or comments are appreciated.

Thanks!

-Solo