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Trap Viewer Regex Help Needed Please

philip937

I have hit a brick wall with this. What I am trying to do is create a filter to match any SNMP messages that contain an IP address int the trap details.

I have tried it in various different formats which seem to work using online regex testers but when I put them into the Trap viewer they don't work.

I have tried things like:

\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b

\b[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\b

(\d+)\.(\d+)\.(\d+)\.(\d+)

Ultimately I want to be able to match All IP addresses but then exclude specific IP ranges which I am not concerned with.

Any help would be appreciated.

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sum_giais

Try you first option without the \b like so, that should match any ip address.

\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}

philip937

Thanks for your reply. I tried that also but still didn’t work

sum_giais

Where exactly is it being used? Is this the legacy win32 trap viewer or the new web log viewer?

philip937

The legacy application

philip937

its worth noting that when I use the following it actually matches every trap even ones without IP addresses.

\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}

however, I have discovered if I do the follwoing:

\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\(

then this actually matches traps with an IP address with a "(" directly after. This has got me a little closer, but I still have no idea why the first example is matching all traps when there are no strings that match.

philip937

strangely it appeared to work if I put a white space in from of the string, I also got it working by adding more specifics like matches after the IP address like - > or to... Still have no idea why ALL traps were match when I set to match against an IP address string where most of the traps didn't have an IP address as part of them. Would still be interested in finding out if anyone knows why this might be?