topic Re: RTCP issue for matching policy in General Topics

RTCP issue for matching policy

BigPalo — Thu, 13 Oct 2022 08:46:38 GMT

Hi,

We are having a issue with RTCP traffic. The RTCP traffic is jumping the rule configured for this and matching the last rule (bypass).

The filter for the correct rule is application rtcp. We see that the application is identified but sometime is matching the correct and most of the times the last rule.

I attach the screenshots with the logs.

what could be the reason? Its not about the first packet is taking the less restrictive rule because the app is being identified in all the moment,

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Re: RTCP issue for matching policy

BPry — Thu, 13 Oct 2022 14:52:25 GMT

@BigPalo,

So even though RTCP is documented as udp/dyanmic, I've had similar issues when using application-default instead of any or a custom service range. I'd test if you get the same behavior setting the RTCP traffic to use any service to your telco host(s). If you have anything other than RTP/RTCP traffic in this rule I'd personally separate the traffic out so that only RTP/RTCP isn't limited to application-default.

Re: RTCP issue for matching policy

BigPalo — Mon, 17 Oct 2022 12:03:13 GMT

We already tried to put "any" in service (not app-deafult) but the some sessions are jumping the rule.

Re: RTCP issue for matching policy

BigPalo — Tue, 18 Oct 2022 08:19:53 GMT

any idea

Re: RTCP issue for matching policy

OtakarKlier — Tue, 18 Oct 2022 16:23:00 GMT

Hello,

What code version are you running? I have some 5220's running 10.1.6-H3 and am seeing the same issue. Think its a bug and waiting another week to go to 10.1.7.

https://docs.paloaltonetworks.com/content/dam/techdocs/en_US/pdf/pan-os/10-1/pan-os-release-notes/pan-os-release-notes.pdf

Regards,

Re: RTCP issue for matching policy

BigPalo — Wed, 19 Oct 2022 07:54:28 GMT

Do you have the bugID for this issue? i would need to confirm it. thanks

Re: RTCP issue for matching policy

OtakarKlier — Wed, 19 Oct 2022 14:23:23 GMT

Hello,

I do not. I have a case opened however. Will check to see if 10.1.7 resolves the issue.

Regards,

Re: RTCP issue for matching policy

OtakarKlier — Fri, 21 Oct 2022 14:11:05 GMT

Hello,

I read the release notes for 10.1.7 and there is a fix for the following:

PAN-194408	Fixed an issue where, when policy rules had the apps that implicitly depended on web browsing configured with the service application default, traffic did not match the rule correctly.

Not sure if its the issue you are facing, but worth a read.

Regards,