Is it possible to write a rule matching any IP ending in .xx

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Is it possible to write a rule matching any IP ending in .xx

Hi all,

I have a question, is it possible to write a rule that matches only a part of the IP address? For example match any IP ending in .51? Using wildcards this would be  *.*.*.51


Put another way, i would like to match all IP's that are x.x.x.51 where x is any number. Someone in our teams suggested using 0.0.0.51/32 but this does not work, although there are 0.0.124.0 type rules in our firewall.

Can you clarify if it's possible to match on only a specific part of an IP address and if so how is this done?

Thank you!

Saqib

L7 Applicator

Re: Is it possible to write a rule matching any IP ending in .xx

Hello Saqib,

I hope 0.0.0.51/32 will not work, since this indicates a specific host /32 ip address ( only 0.0.0.51 ip address). Regex will also not work, because it requires at least 7 byte fixed data patterns.

In Regex, every pattern you create must contain at least a 7-byte string with fixed values.

o The 7-byte fixed string can be anywhere in your pattern.

o The 7 values must be fixed, this means no ‘.’ (dot), no ‘*’ (star), no ‘+’ (plus), or other wildcard characters within the 7 bytes. Hence, it will not be applicable for the mentioned IP address 0.0.0.51/32.

Hope this helps.

Thanks

L5 Sessionator

Re: Is it possible to write a rule matching any IP ending in .xx

Nope, Cisco style wildcard notation is not supported on PA devices yet. I've put in a feature request for this, I'd ask you to do the same please.

L7 Applicator

Re: Is it possible to write a rule matching any IP ending in .xx

Here is the details of the feature request: For questions like these you may talk to your SE to place feature requests.

Subject: Subnet wildcards in a security policy

FR ID: 1038

Hope this helps.

Thanks

L6 Presenter

Re: Is it possible to write a rule matching any IP ending in .xx

can someone share FR ID please.

Not applicable

Re: Is it possible to write a rule matching any IP ending in .xx

Thanks guys, this has been very helpful, I will contact out SE. (Sales Executive?) and ask for this feature.

L5 Sessionator

Re: Is it possible to write a rule matching any IP ending in .xx

Is there a place where you can see all the feature requests?

L6 Presenter

Re: Is it possible to write a rule matching any IP ending in .xx

Hi Santonic,

Customer dont have access to it, you can get that information either from forum or from TAC or from SE.

Regards,

Hardik Shah

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