[cisco-voip] Can MRA work with old UCM configured with IP addresses?

[Schlotterer, Tommy]

Check to make sure the Expressway-C has a reverse DNS record for the Expressway-E’s IP address.

Also, upload your Logs to here: https://cway.cisco.com/csa/

CSA usually has good advice for MRA issues.

Thanks

Tommy

Tommy Schlotterer        |      Engineer

Presidio
         |      presidio.com<http://www.presidio.com/>

20 N Saint Clair 3rd Floor, Toledo, OH 43604
D: 419.214.1415<tel:419.214.1415>        |      C: 419.706.0259<tel:419.706.0259>        |      tschlotterer at presidio.com<mailto:tschlotterer at presidio.com>



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From: cisco-voip <cisco-voip-bounces at puck.nether.net> On Behalf Of Dana Tong
Sent: Wednesday, April 1, 2020 6:26 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Can MRA work with old UCM configured with IP addresses?

EXTERNAL EMAIL




Hi all,

I have a customer who was installed some 9 years ago and the hosts were all configured with IP address instead of FQDN. They’re up on UCM 10.5(2) now and I have spun up Expressway X12.5.7.
The UC Traversal zone is up and running. The Expressway’s have certificates installed.
However I am hitting issues with getting the edge config and signing in. I get the usual “cannot communicate with server” when I try to login with Jabber.

I’ve tried changing some things such as configuring the UCM, IM&P, Unity servers in Expressway-C by IP or FQDN and have had some varying results on the Collaboration Solution Analyser. Sometimes its downloads the user UDS configuration and sometimes it doesn’t.

Is MRA do-able with the UCM using IP address? Or am I going to have to bite the bullet and reconfigure all the devices to use FQDN for their clustering? Or is there some kind of easy fix?

Cheers
Dana



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