Service Groups - D-Link NetDefend DFL-210 User Manual

3.2.5. Service Groups

1. Go to Objects > Services > Add > IP protocol service
2. Specify a suitable name for the service, for example VRRP
3. Enter 112 in the IP Protocol control
4. Optionally enter Virtual Router Redundancy Protocol in the Comments control
5. Click OK
3.2.5. Service Groups
A Service Group is, exactly as the name suggests, a NetDefendOS object that consists of a
collection of services. Although the group concept is simple, it can be very useful when constructing
security policies.
For example, there may be a need for a set of IP rules that are identical to each other except for the
service parameter. By defining a service group which contains all the service objects from all the
individual rules, we can replace all of them with just one that uses the group.
Groups Can Contain Other Groups
When a group is defined then it too can be included in a new group. This ability to have groups
within groups should be used with caution since it can increase the complexity of a configuration
and decrease the ability to understand any problems that arise.
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Chapter 3. Fundamentals