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vpn with aes

eppiet
Level 1
Level 1

Pix user guide 6.3 said that aes need DH group 5. The Cisco VPN client documentation for vpn client 4.03 has example showing DH with group 2.

I tried both and it only seem to work with group 2.

Has anyone get any success with group 5.

Thanks

Eppie

1 Reply 1

gfullage
Cisco Employee
Cisco Employee

If you're using pre-shared keys (which is a standard group name and password in VPN3000 land), then the VPN client will use AES with DH Group 2. If you're using certificate's then it will use DH Group 5 with AES.

The admin guide here (http://www.cisco.com/univercd/cc/td/doc/product/vpn/client/3_6/admin_gd/vcach6.htm#1157757) details all the IKE policies that the VPN client has, you can see with pre-shared keys AES is only negotiated with DH2.