topic Re: ISE 2.7 Patch 2 - Unknown NAD - IP of PSN reported in alarm in Network Access Control

ISE 2.7 Patch 2 - Unknown NAD - IP of PSN reported in alarm

AigarsK — Wed, 23 Dec 2020 09:07:07 GMT

Hi All,

Have noticed odd alarm in ISE deployment. All 5 PSN's distributed across different offices are reporting in Unknown NAD, but the IP of the NAD seen is actually the IP of the PSN's themself.

Entries show up daily for at least one IP of the PSN been reported in. If I click on details for that alarm entry, is just states that there is no data available for that record.

What could be the cause for this, I have checked NMAP and I do not see any scans taking place. I have also placed exclusions for NMAP to never scan IP addresses of ISE nodes.

Has anyone seen this behaviour and what was the fix for it.

Re: ISE 2.7 Patch 2 - Unknown NAD - IP of PSN reported in alarm

hslai — Sun, 27 Dec 2020 04:42:55 GMT

CSCvw78652 seems what you are hitting. However, I am not seeing such in my lab and TAC opened it as cosmetic but did not provide enough info.

Re: ISE 2.7 Patch 2 - Unknown NAD - IP of PSN reported in alarm

AigarsK — Tue, 29 Dec 2020 09:10:33 GMT

Thanks for reply.

Will keep an eye on that bug report in case fix is provided in near future.