ZyXEL Communications 70 Series User Manual

ZyWALL 5/35/70 Series User’s Guide

Appendix K VPN Setup

738

If the IPSec tunnel does not build properly, the problem is likely a configuration error at one of 
the IPSec routers. Log into the web configurators of  both ZyXEL IPSec routers.

 

Check the settings in each field  methodically and slowly.

The system log can often help to identify a configuration problem.

 

Use the web configurator LOGS Log Settings screen to enable IKE and IPSec logging at both 
ends, clear the log and then build the tunnel.

View the log via the web configurator LOGS View Log screen or type 

sys log disp

 from 

SMT Menu 24.8. See 

 for information on the log messages.