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Tunnel Name– In order to distinguish the tunnel, you have to give the “Tunnel” a unique name.
PPPoE Session– If you are using PPPoE to make the connection, and your ISP offers multiple PPPoE
sessions, you can select these PPPoE sessions to construct VPN tunnels.
Enable setting – The tunnel can only be connected if enabled.
Phase 1 DH Group – Use DH Group 1(768-bits), DH Group 2(1024-bits), or Group 5 (1536-bits) to
generate IPSec SA keys.
Phase 1 Encryption Method– Three data encryption methods are available: DES, 3DES, AES.
Phase 1 Authentication Method– There are two authentication methods available: MD5 and SHA1
(Secure Hash Algorithm).
Phase 1 SA Life Time– By default the Security Association lifetime is 3600 Sec.
Force Deletion after Expiring – Once SA expires, tunnel will be removed and related resources
will be released to the system.
Security level
Encryption Method – 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 – specifies the packet authentication mechanism to use. Packets authentication
proves the data comes from the source you think it comes from. There are three authentications available:
MD5, SHA1 and SHA2.
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