What Can Go Wrong - ZyXEL Communications ZyWALL 110 Handbook

Figure 680 CONFIGURATION > BWM > Configuration > Add Policy
Dial Phone Number 1001 (192.168.10.2 in this example) from Phone Number 1002 (192.168.100.2
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in this example), go to the ZyWALL/USG Monitor > Log, you will see [alert] log message such as
below. The Destination IP address is the SIP Server IP address.
Figure 681 Monitor > Log
Go to the ZyWALL/USG Monitor > Traffic Statics and review the SIP traffic and other services to
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optimize the Guaranteed and Maximum BMW of bandwidth consuming services.
Figure 682 Monitor > Traffic Statics

7.5.6 What Can Go Wrong?

If you see [alert] log message such as below, the voice traffic is blocked by the priority 1 Security
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Policy. The ZyWALL/USG checks the security policy in order and applies the first security policy the
traffic matches. If the voice traffic matches a policy that comes earlier in the list, it may be
unexpectedly blocked. Please change your policy setting or move the voice traffic policy to the
higher priority.
Figure 683 Monitor > Log
Chapter 7 Manage Your Network Traffic
ZyWALL/USG Series User's Guide
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