topic Re: Traffic Monitor Operators in General Topics

Traffic Monitor Operators

MPI-AE — Tue, 23 Oct 2018 10:40:44 GMT

Hey!

is there a way to define a "not equal" operator for an ip address?

Why does "neq" not work?

Re: Traffic Monitor Operators

LukeBullimore — Tue, 23 Oct 2018 18:42:05 GMT

Hey @MPI-AE

"neq" is definitely a valid operator, perhaps you're hitting some GUI bug?

e.g.

(addr.dst neq 8.8.8.8)

As an alternative, you can use the exclamation mark e.g.

!(addr.dst eq 8.8.8.8)

Re: Traffic Monitor Operators

Remo — Wed, 24 Oct 2018 08:41:59 GMT

Hi @MPI-AE

Do you use 1 IP address as filter or a subnet? With one IP, it is like @LukeBullimore already wrote. For a subnet you have to use "notin" (for example "addr.dst notin 10.10.10.0/24")

Re: Traffic Monitor Operators

MPI-AE — Wed, 24 Oct 2018 15:48:53 GMT

Hey!

It's one ip address. But it doesn't work for me:

Re: Traffic Monitor Operators

Remo — Wed, 24 Oct 2018 16:10:35 GMT

Hmn ... I see ... and also tested it (I have probably never used the negate option for one IP or I only used the operator that works 😛 (see below))

"eq" works to match one IP but if to negate just one IP you have to use "notin"

Re: Traffic Monitor Operators

LukeBullimore — Wed, 24 Oct 2018 18:20:37 GMT

Yep that is completely my bad @Remo. You can't use NEQ for an IP address filter, only for filter types where "eq" is appropriate.

e.g ( zone.dst eq test) = neq would be valid there.

My bad! To negate IP addresses use notin

Re: Traffic Monitor Operators

BPry — Wed, 24 Oct 2018 18:36:04 GMT

@MPI-AE,

Just to add to this a bit.

the valid operators for addr is in/notin, however an eq statement can also be used in the GUI. The GUI is presently set so that if you run a query with the eq operator ( addr.dst eq 10.191.16.61 ) it truly uses the CLI equivelent of 'show log traffic dst in 10.191.16.61' and essentially "corrects" your operator issue for you. The same was never setup for a neq operator, simply hitting the invalid operator warning.

Essentially this was done to be friendly to operator mistakes, but it can also easily lead to confusion since the operator overwrite was never fully fleshed out to include all operators.

Re: Traffic Monitor Operators

MPI-AE — Tue, 20 Nov 2018 12:11:03 GMT

@BPry

Would like to ask an additional thing:

I want to search for all google apps in the monitor. Is there an operator for that?

I tried: ( app contains google ) but that doesn't work.