Digi TransPort WR11 User Manual page 479

Configuring Virtual Private Networking (VPN)
XAuth ID
Extended Authentication ID for use with Cisco XAUTH.
4. Click Advanced and configure advanced IPsec tunnel parameters as needed:
IPsec mode
Selects the IPsec encapsulation type to use on the IPsec tunnel. In Tunnel mode, the entire IP
packet (header and payload) is encrypted. In Transport mode, only the IP payload is encrypted.
Use algorithm AH authentication on this tunnel
The AH authentication algorithm to use with this IPsec tunnel. The options are:
Digi TransPort® Routers User Guide
Configure Internet Protocol security (IPsec)
479