[cisco-voip] Second Node in Cluster

[Ryan Ratliff]

The error you are getting is clustermanager on the new sub trying to  
communicate with the same service on the publisher.  This is necessary  
so that the publisher will open up the iptables firewall to allow the  
sub to communicate for the installation.  This is done via UDP port  
8500 and the certificate exchange is typically large packets that will  
get fragmented/segmented.

If you move the server so it's not over the VPN from the pub will the  
install proceed?
Are you blocking any traffic over the vpn?

-Ryan

On Nov 3, 2009, at 10:27 AM, Martin Bufton wrote:

I’m tryin to add a second Node to my CCM 7 environment.

I have added the second server via the web interface setting the IP  
address and description.

I have even restarted the 1st server

When I try and add the second server I get the following error
“could not contact server using UDP 8500”

Or words to similar effect.

My MTU is set to 1400 on bother servers, so should be allowed across  
my VPN, I can ping ok and also got past the stage of confirming  
security password so connectivity should be good.

Other forums suggested a possible DNS issue so I have removed all  
reference to DNS on both server.

and still it’s not working.

Can anyone point me in the best direction to continue troubleshooting?

Thanks in advance

Martin

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