Authentication

Select:

Algorithm

MD5 (A digital signature algorithm)

 

SHA1 (Secure Hash Algorithm)

 

 

Key Group

Select one of the following DH (Diffe-Helman)

 

encryption algorithms, which allow two parties

 

that have no prior knowledge of each other to

 

establish a shared secret key:

 

DH1(modp768) – 768-bit prime modulus group

 

DH2(modp1024) – 1024-bit prime modulus

 

group

 

DH5(modp1536) – 1536-bit prime modulus

 

group

 

 

Key Lifetime

Enter a duration in seconds for the IKE

 

encryption key, after which the key

 

automatically changes.

 

 

Phase 2

 

Encryption

Select:

Algorithm

3DES (a mode of the Data Encryption

 

Standard algorithm that encrypts data three

 

times)

 

AES 128 (128-bit Advanced Encryption

 

Standard)

 

NULL

 

 

Authentication

Select:

Algorithm

MD5 (A digital signature algorithm)

 

SHA1 (Secure Hash Algorithm)

 

 

Key Lifetime

Enter a duration in seconds for the IKE

 

encryption key, after which the key

 

automatically changes.

 

 

Perfect Forward

PFS involves a Diffe-Hellman shared secret

Secrecy (PFS)

value, which guarantees that if an encryption

 

key is exposed, previous and future keys will

 

remain secure because they are not derived

 

from the exposed key.

 

Select ON or NONE.

 

 

OK

Click to save your settings and return to the

 

VPN client setup page, where you are

 

reminded to click Apply Changes.

Cancel

Click to return to the VPN client setup page.

 

 

 

 

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