Hello,
We have a lot of IPSEC VPNs L2L using the VTI (interface tunnel , with tunnel mode ipsec ipv4,etc), but always between Cisco routers.
Now I have to establish a VPN L2L with another FW vendor (that probably is not going to have a tunnel interface with ip address,etc).
So the question is should I configure on my side (cisco router) a VTI or "classic" IPSEC tunnel with crypto map and crypto ACLs ? I know the later is going to work but is legacy, but I am not sure if the VTI is going to work with a 3rd party device.
what do you recommend for these cases?
Thank you.
Regards
