Motorola AP-7131 Product Reference Manual page 693

• Question 9: I am using a direct cable connection between my two VPN gateways
for testing and cannot get a tunnel established, yet it works when I set them up
across another network or router. Why?
The packet processing architecture of the access point VPN solution requires the WAN
default gateway to work properly. When connecting two gateways directly, you don't need
a default gateway when the two addresses are on the same subnet. As a workaround, point
the access point's WAN default gateway to be the other VPN gateway and vice-versa.
• Question 10: I have setup my tunnel and the status still says 'Not Connected'. What
should I do now?
VPN tunnels are negotiated on an "as-needed" basis. If you have not sent any traffic
between the two subnets, the tunnel will not get established. Once a packet is sent between
the two subnets, the VPN tunnel setup occurs.
• Question 11: I still can't get my tunnel to work after attempting to initiate traffic
between the two subnets. What now?
Try the following troubleshooting tips:
Usage Scenarios B-17