Expressway-E Dual NICs

[JustForVoice_2]

Hello,

I want to use Expressway-E Dual NIC deployment. Could you please infrom me if the IP settings for NIC interfaces are OK as per the attached image?

[Manish Gogna]

Hi,

That looks correct as per pages 23-24 of the following link

http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco-Expressway-Administrator-Guide-X8-2.pdf

LAN 1 and LAN2 interfaces must be on different, non overlapping subnets.

Manish

[JustForVoice_2]

Thank you for your reply, but I have a question regarding the communication between Expressway-C and E. While C in different network how E will communicate with C and no default GW?

[Manish Gogna · Accepted solution]

Please check page 51-52 of the following link for how it works

http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-5/Cisco-Expressway-Basic-Configuration-Deployment-Guide-X8-5-2.pdf

Manish

[Chris Deren]

Essentially this is achieved by adding static routes to the E server to point all internal networks to the "Transit DMZ" (internal DMZ), and then everything else goes to the "Services DMZ".