I tried to configure a dynamic virtual tunnel interface on a Cisco 2821 with release 12.4(9)T1 advanced ip services, aiming to terminate VPN client ipsec tunnels on it.

The feature is supported by this software release. Documentation says:

- enter configuration

- configure a virtual-template interface

- type "tunnel mode <mode>"

but the router does not accept this command.

Any hint?

Thank you in advance.

Denis