AP-51xx Access Point Product Reference Guide
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The Inbound and Outbound SPI settings are required to be interpolated to function correctly.
For example:
• AP1 Inbound SPI = 800
• AP1 Outbound SPI = 801
• AP2 Inbound SPI = 801
• AP2 Outbound SPI = 800
4. Click Ok to return to the VPN screen. Click Apply to retain the settings made on the Manual
Key Settings screen.
5. Click Cancel to return to the VPN screen without retaining the changes made to the
Manual Key Settings screen.
6.11.2 Configuring Auto Key Settings
The access point’s Network Management System can automatically set encryption and
authentication keys for VPN access. Use the Auto Key Settings screen to specify the type of
encryption and authentication, without specifying the keys. To manually specify keys, cancel out of
the Auto Key Settings screen, select the Manual Key Exchange radio button, and set the keys
within the Manual Key Setting screen.
To configure auto key settings for the access point:
1. Select Network Configuration -> WAN -> VPN from the access point menu tree.
2. Refer to the VPN Tunnel Config field, select the Auto (IKE) Key Exchange radio button
and click the Auto Key Settings button.
Inbound SPI (Hex) Define an (up to) six-character (maximum) hexadecimal value to
identify the inbound security association created by the encryption
algorithm. The value must match the corresponding outbound SPI
value configured on the remote security gateway.
Outbound SPI (Hex) Enter an (up to) six-character (maximum) hexadecimal value to
identify the outbound security association created by the
encryption algorithm. The value must match the corresponding
inbound SPI value configured on the remote security gateway.