said by gilbert_osm:
to convince clients to replace their WAN head-end equipment just for compatibility with my hardware VPN solution.
My personal experience? BAAAAAD idea when you suggest dismantling a customer's network to get YOUR
solution in to make it work.
Otherwise, as I said, VPNTracker sounds like a standard IPSec-compatible VPN client, and IPSec's a standard,
so as long as "site to site VPN" and "remote access VPN" is in whatever gear you decide on's spec sheet, you
should off to the races.
I'd also check smallnetbuilder for some of the SMB gear for other options.