cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
2438
Views
0
Helpful
2
Replies

Expressway-E Single NIC with NAT

Michael Schmidt
Level 1
Level 1

Hi,

 

we have one installation of Expressway-C and E where the E has one single NIC with NAT enabled.

 

The MRA Zone from the C to the E is connected to the Public NAT IP (NAT reflection) and the Zone is working / established.

 

But the Zone from Expressway E is not connected to the IP of the Expressway-C (internal LAN) but to any IP of the ASA firewall which I think is not correct although with this "firewall ip" the Zone in the E is "green".

 

At the moment MRA is also NOT working as I think there is still a config failure in the Cisco ASA NAT reflection.

 

Is it correct that the Zone from the Expressway-E must be established to the internal LAN IP of the Exp-C and not to any firewall IP?

 

BR

Michael

2 Replies 2

Hi Micheal, you should be configuring the IP address of the expressway core and not the firewall IP in Expressway-Edge. following URL may help you to verify the configuration. https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway-series/117811-configure-vcs-00.html Regards, Shalid Please remember to rate useful posts, by clicking on the stars below.

Hi Shalid,

 

the MRA zone of Exp-C is configured the the FQDN of Exp-E.

 

The FQDN of Exp-E is acutally confgured to his NAT IP (Public IP) which is described here at page 62:

 

https://www.cisco.com/c/dam/en/us/td/docs/telepresence/infrastructure/vcs/config_guide/X8-5/Cisco-VCS-Basic-Configuration-Control-with-Expressway-Deployment-Guide-X8-5.pdf

 

Is this not correct to configure the MRA Zone of Exp-C to the NAT IP of Exp-E?

 

And why the Exp-E is not connecting to the IP of Exp-C but to any firewall IP?

 

BR

Michael

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: