Nortel Networks 620 User Manual

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Chapter 6
Advanced Features
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6.1 IPSec and the Stateful Inspection Firewall
What about ...
The SpeedTouch™ has a built-in firewall which is completely configurable by the 
user. A number of preset firewall levels are defined that allow an easy configuration 
according to your security policy. In most cases, one of these preset levels will fulfill 
your requirements. 
All these preset firewall levels allow the IPSec communication to pass. So, you do 
not need to adjust the firewall settings when you use a VPN connection.
More information about the firewall is found in the “SpeedTouch™ Stateful 
Inspection Firewall Configuration Guide”.