Hi, I am used to setting up the lan to lan VPN and have an IPsec tunnel between a 3910 and a 2952 which works on the first lan subnet correctly and can ping from both ends.
I searched for and found a good article explaining that I merely had to click on the more button in 5.TCP/IP Network settings and add the second submet in the box that appears with the correct subnet mask. Excited I thought it cannot be that simple can it !

Alas it doent work. ...... Cannot ping 2nd lan at all either way.

2 Questions anyone, WIll a reboot of one of both Draytek's assist. 2. any other ideas ?

I can ping between the 2 subnets internally at the 3910 end where both these site subnets are generated. However at the remote site only the 1st subnet appears reachable despite checking a dozen times under the "MORE" button on the 2952 that the 2nd subnet is correctly entered.

Maybe I need to add something else somewhere or tick some box or other. Any Ideas appreciated as I am trying to finish some maintenance and re-configuration over the Bank Holiday weekend before all the staff return to their desks on Tuesday morning!

Thanks in advance