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45-45
User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 45 Managing Firewall Devices
Configuring Firewall Device Interfaces
Managing VPDN Groups
A Virtual Private Dialup Network (VPDN) group—basically an established PPPoE user and an
authentication protocol—is used by a security device to contact an external ISP and authenticate itself,
in order to establish a PPPoE communications link and obtain network parameters. (See Managing the
PPPoE Users List, page 45-44 for information about establishing PPPoE users.)
Available VPDN groups are maintained in the Advanced Interface Settings dialog box, which opens
when you click the Advanced button at the bottom of the Interfaces page, as described in Advanced
Interface Settings (PIX/ASA/FWSM), page 45-42.
Adding and Editing VPND Groups
The Advanced Interface Settings dialog box includes a table of currently defined VPDN groups, and
standard Add Row, Edit Row, and Delete Row buttons. The Add Row button opens the Add VPDN Group
dialog box; the Edit Row button opens the virtually identical Edit VPDN Group dialog box.
Enter or edit the following VPDN group parameters, and then click OK to close the Add (Edit) VPDN
Group dialog box and return to the Advanced Interface Settings dialog box.
Note VPDN group options are not available on Firewall Service Modules (FWSMs).
Field Reference
Confirm Re-enter the password.
Store Username and
Password in Local Flash
If checked, this PPPoE user information will be stored in the device’s
local flash memory, ensuring it cannot be inadvertently overwritten.
Table 45-10 Add and Edit PPPoE User Dialog Boxes (Continued)
Element Description
Table 45-11 Add and Edit VPND Group Dialog Boxes
Element Description
Group Name A name to identify this group in Security Manager; up to 63 characters.
PPPoE Username The name identifying the PPPoE credentials to be used by this group
for authentication with an ISP; choose from the list of available PPPoE
users.
Choose Edit User from this list to open the PPPoE Users dialog box,
where you can add or edit a user for this option. Refer to Managing the
PPPoE Users List, page 45-44 for information about creating and
editing users.
PPP Authentication Select the PPP Authentication method:
• PAP – Password Authentication Protocol, with exchange of
credentials in clear text.
• CHAP – Challenge Handshake Authentication Protocol, with
encrypted credential exchange.
• MSCHAP – Microsoft’s CHAP, version 1 only.