Help required for setup Expressway C & E

[rupam_chakra1983]

Hi

I am trying to setup MRA .

But its unsuccessful. and getting the error in the status > unified communication

I am not using any TLS and have not uploaded any certificate since i am not using a secure deployment.

any help in troubleshooting appreciated.

[Jaime Valencia]

You do need to get certificates for MRA to work, they're the foundation of this.

That is completely separate from the fact you're not using mixed mode on CUCM, that only means you won't need a few steps and SAN entries in the EXP-C certificate.

You also need to read thoroughly the MRA configuration guide which outlines all the steps and requirements for MRA to work.

[rupam_chakra1983]

Thanks Jamie for the info .

I created a CA and uploaded the signed certificate to the expressway C and Expressway E.

I uploaded the root certificate to both of the server

tried creating a traversal zone using TLS but it is not coming up.

Getting the error in the logs field

tvcs: Event="External Server Communications Failure" Reason="Connect failed" Service="NeighbourGatekeeper" Dst-ip="Public IP of Exp-e" Dst-port="7001" Detail="name:FQDN of EXP E" Protocol="TCP" Level="1" UTCTime="2017-03-23 21:21:58,918"

[Jaime Valencia]

Do you have dual NIC on EXP-E??

Or single NIC, and have you actually used the public IP??

Do you have all the proper ports open between both systems?

for MRA, you need to use the UC traversal zone, there is no TLS option there