TMS zl Management and Configuration Guide ST.1.2.100916

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Virtual Private Networks
Configure an L2TP over IPsec VPN
6. For Security Protocol, select ESP.
7. Select one of the following for Encryption Algorithm, referring to Table 7-17:
•NULL
If you select this option, traffic will not be encrypted.
•DES
•3DES
• AES-128 (16)
• AES-192 (24)
• AES-256 (32)
The number in parentheses after AES options indicates the key length for
the algorithm in bytes.
8. For Authentication Algorithm, select one of the following, referring to
Table 7-17:
• None
You must not select this option if you have selected NULL in the
previous step.
•MD5
• SHA-1
9. Click OK.
The IPsec proposal is displayed in the VPN > IPsec > IPsec Proposals window.
Figure 7-129. VPN > IPsec > IPsec Proposals Window (Proposal Added)
10. Click Save.