TMS zl Management and Configuration Guide ST.1.1.100430

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Virtual Private Networks
Configure a Windows XP SP2 Client for L2TP over IPsec
Figure 7-351. Windows XP—Advanced Security Settings
26. For Data encryption, ensure that Require encryption (disconnect if server
declines) is selected.
27. Select Allow these protocols.
28. Clear the Microsoft CHAP Version 2 (MS-CHAP v2) check box. If it is not
already selected, select the check box for the authentication protocol
specified in the TMS zl Module L2TP dial-in user account or the remote
RADIUS server’s access policy.
If the module allows any protocol, you can select multiple check boxes.
However, you must always clear the Microsoft CHAP Version 2 (MS-CHAP
v2) check box. The TMS zl Module does not support this setting.
29. Click OK.
30. You must configure the client to use a preshared key for IKE authentica-
tion:
a. Click IPSec Settings. The IPSec Settings window is displayed.