USG FLEX H Series User’s Guide
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CHAPTER 21
IP Exception
21.1 Overview
IP Exception allows incoming IP packets to bypass specific security services based on the packet’s
source or destination address. Bypassing a security service means the security service does not intercept
nor inspect the packet.
For example, 192.168.100.100 is a trusted LAN computer. Add the IP address of the LAN computer to
Source in IP Exception so the Zyxel Device will not perform security checking on traffic coming from this
computer.
Figure 193 IP Exception Bypass Source Example
You can also add a trusted destination to bypass security checking. For example, 2.2.2.2 is a trusted web
site. Add the IP address of the trusted web site to Destination in IP Exception so the Zyxel Device will not
perform security checking when you access the web site to save resources.
Figure 194 IP Exception Bypass Destination Example
IP Exception supports bypassing the following security services: