Hi experts. We need to set up a VPN using a Cisco ASA 5510 (OS 8.3(1)) from our offices to a 3rd party yet, they insist on using what they term to be a "tunnel mode" VPN not a site to site traditional Cisco style VPN where you define interesting traffic e.t.c.
Basically what they are saying is that they don't provide any routing / interesting traffic with the phase 2 association request and this creates a "virtual interface" on their Sonicwall router. They can then use this interface to route traffic over.
Any ideas how to do this in Cisco ASA speak? Are they talking about a GRE/IPSEC tunnel?