I have been reading in the below guide:
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-5/Cisco-Expressway-IP-Port-Usage-for-Firewall-Traversal-Deployment-Guide-X12-5.pdf
And I'm having some questions regarding deploying CMS Web Proxy using Expressway:
- I'm having trouble understanding these 2 Lines and the public IP talk to the private or itself and why does the expressway does this
- Does the below lines mean that there's no need to allow these ports on firewall or only the NAT reflection feature:
- Does opening the below ports on the external firewall have any risk from the security perspective and is it mandatory
- Is deploying CMS with single Edge supported with the below deployment
External Firewall --> Expressway Edge (Dual NIC) --> Internal Firewall-1--> Expressway Core --> Internal Firewall-2--> CMS