User`s guide

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• Tunnel Name– In order to distinguish the tunnel, you have to give “Tunnel” a name..
• PPPoE Session– If you are using PPPoE to make the connection, and some ISP offers multiple PPPoE
session, you can select these PPPoE sessions to construct VPN tunnels.
• Enable setting – Only when the tunnel check box is enabled , the tunnel can be connected.
• Phase 1 DH Group – Use DH Group 1(768-bits),DH Group 2(1024-bits), Group 5 (1536-bits) to
generate IPSec SA keys.
• Phase 1 Encryption Method– There are three data encryption methods : DES,3DES,AES
• Phase 1 Authentication Method– There are two authentication available. MD5 and SHA1 (Secure
Hash Algorithm)
• Phase 1 SA Life Time– By default the Security Association lifetime is 3600 Sec.
• Force Deletion after Expiry – Once SA get expired, tunnel will be removed and related resources
will be released to the system.
Security level
• Encryption Method – It specifies the encryption mechanism to use. Data encryption makes the data
unreadable if intercepted. There are three encryption method available; DES/3DES and AES. The
default is null.
• Authentication – It specifies the packets authentication mechanism to use. Packets authentication
proves that data comes from source you think it comes from. There are three authentications available.
MD5,
SHA1 and SHA2.