AP-5131 Access Point Product Reference Guide
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4. Click Ok to return to the VPN screen. Click Apply to retain the settings made on the Auto
Key Settings screen.
5. Click Cancel to return to the VPN screen without retaining the changes made to this screen.
6.11.3 Configuring IKE Key Settings
The Internet Key Exchange (IKE) is an IPsec standard protocol used to ensure security for VPN
negotiation and remote host or network access. IKE provides an automatic means of negotiation and
authentication for communication between two or more parties. In essence, IKE manages IPSec keys
automatically for the parties.
To configure IKE key settings for the AP-5131:
1. Select Network Configuration -> WAN -> VPN from the AP-5131 menu tree.
2. Refer to the VPN Tunnel Config field, select the Auto (IKE) Key Exchange radio button
and click the IKE Settings button.
ESP Encryption
Algorithm
Use this menu to select the encryption and authentication
algorithms for this VPN tunnel.
• DES - Selects the DES algorithm.No keys are required to be
manually provided.
• 3DES - Selects the 3DES algorithm. No keys are required to
be manually provided.
• AES 128-bit: - Selects the Advanced Encryption Standard
algorithm with 128-bit. No keys are required to be manually
provided.
• AES 192-bit: - Selects the Advanced Encryption Standard
algorithm with 192-bit. No keys are required to be manually
provided.
• AES 256-bit: - Selects the Advanced Encryption Standard
algorithm with 256-bit. No keys are required to be manually
provided.
ESP Authentication
Algorithm
Use this menu to select the authentication algorithm to be used
with ESP. This menu is only active when ESP with Authentication
was selected for the ESP type.
• MD5 - Enables the Message Digest 5 algorithm requiring
128-bit. No keys are required to be manually provided.
• SHA1 - Enables Secure Hash Algorithm. No keys are
required to be manually provided.