Groups and SuperGroups
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Groups and SuperGroups

L1 Bithead

I work for a global enterprise that has around a dozen PA 7000 series FWs running between 2 & 6 vSystems each. We have many address groups with more than 500 members, and several "SuperGroups," containing two, or more, of those large groups.

 

Let's say

address-groupgroup-1contains500members
address-groupgroup-2contains550members
address-groupgroup-3contains600members
address-groupgroup-4contains650members
address-groupgroup-5contains1000members
address-groupSuperGroupcontainsaddress-groups1, 2, 3, 4, & 5

 

Which is the best way to write a security policy for these groups:

Rule Namesource-zoneaddressdest-zoneaddressapplicationservicesactionlogging
1internalSuperGroupexternal8.8.8.8DNSApplication-defaultpermitwhatever
2internalgroup-1
group-2
group-3
group-4
group-5
external8.8.8.8DNSApplication-defaultpermitwhatever
3ainternalgroup-1external8.8.8.8DNSApplication-defaultpermitwhatever
3binternalgroup-2external8.8.8.8DNSApplication-defaultpermitwhatever
3cinternalgroup-3external8.8.8.8DNSApplication-defaultpermitwhatever
3dinternalgroup-4external8.8.8.8DNSApplication-defaultpermitwhatever

3e

 

internalgroup-5external8.8.8.8DNSApplication-defaultpermit

whatever

 

i.e. Is combing, or nesting, groups in to super-groups OK? Is there an impact on performance, or anything else, doing this?

      Is listing groups, rather than having a super-group, a better way to do it?

      Is it better just to have separate rules for each group, like 3a through 3e?

 

The only difference in the above rules is how the source addresses are configured: in a super-group, a list of groups, or using multiple rules, one address-group per rule.

 

Looking forward to your replies.

 

Thanks,

Ian

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