Chapter 30 ADP

Table 142 Anti-X > ADP > Profile (continued)

LABEL

DESCRIPTION

Base Profile

This is the base profile from which the profile was created.

 

 

(Icons)

Click the Add icon in the column header to create a new profile. A pop-up screen

 

displays requiring you to choose a base profile from which to create the new profile.

 

Click an Edit icon to edit an existing profile.

 

Click a Remove icon to delete an existing profile.

 

 

30.7 Creating New Profiles

You may want to create a new profile if not all rules in a base profile are applicable to your network. In this case you should disable non-applicable rules so as to improve ZyWALL ADP processing efficiency.

You may also find that certain rules are triggering too many false positives or false negatives. A false positive is when valid traffic is flagged as an attack. A false negative is when invalid traffic is wrongly allowed to pass through the ZyWALL. As each network is different, false positives and false negatives are common on initial ADP deployment.

You could create a new ‘monitor profile’ that creates logs but all actions are disabled. Observe the logs over time and try to eliminate the causes of the false alarms. When you’re satisfied that they have been reduced to an acceptable level, you could then create an ‘inline profile’ whereby you configure appropriate actions to be taken when a packet matches a rule.

30.7.1 Procedure To Create a New Profile

To create a new profile:

1Click the Add icon in the Anti-X > ADP > Profile screen to display a pop-up screen allowing you to choose a base profile.

2Select a base profile (see Table 141 on page 449) and then click OK to go to the profile details screen.

3Type a new profile name

4Enable or disable individual rules

5Edit the default log options and actions.

30.8Profiles: Traffic Anomaly

The traffic anomaly screen is the second screen in an ADP profile. Traffic anomaly detection looks for abnormal behavior such as scan or flooding attempts. In the Anti-X > ADP > Profile screen, click the Edit icon or click the Add icon and choose a base profile. If you made changes to other screens belonging to this profile, make sure you have clicked OK or Save to save the changes before selecting the Traffic Anomaly tab.

450

 

ZyWALL USG 1000 User’s Guide