Symbol Technologies AP-5131 - Manual (Page 557)

AP-5131 Usage Scenarios B-11
8. Click Apply to save the changes.
9. Select the Auto (IKE) Key Exchange checkbox.
10. Select the Auto Key Settings button.
11. For the ESP Type, select ESP with Authentication and use AES 128-bit as the ESP
Encryption Algorithm. Click OK .
12. Select the IKE Settings button.
NOTE For this example, Auto IKE Key Exchange is used. Any key exchange can
be used, depending on the security needed, as long as both devices on
each end of the tunnel are configured exactly the same.