TMS zl Management and Configuration Guide ST.1.1.100226

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Troubleshooting
Troubleshooting the TMS zl Module in Routing Mode
Figure 10-16. Windows XP—Advanced Security Settings
j. For Data encryption, ensure that Require encryption (disconnect if server
declines) is selected.
k. Select Allow these protocols.
l. Select the check box for the authentication protocol that is configured
on the module. Clear all other check boxes. Even if the module
specifies Any for the authentication protocol, clear the Microsoft CHAP
Version 2 (MS-CHAP v2) check box because the module does not
support this protocol.
2. Verify that you are entering the correct username and password for an
L2TP dial-in user. The username and password must match those that you
noted in the previous step.
Troubleshoot Access Policies for a Client-to-Site L2TP over IPsec
VPN. If the VPN connection seems to be up but the remote client’s traffic
cannot reach its destination, a firewall access policy is probably to blame. The
TMS zl Module firewall processes outgoing VPN traffic before it is encapsu-