Source note · Troubleshooting Expressway Mobile and Remote Access
For single-NIC Expressway-E with static NAT, Cisco's fix is to point the Expressway-C UC traversal zone at the Expressway-E public IP and configure NAT reflection on the firewall.
Checked 2026-10-01
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- media-nat
- Deployment
- on-premises
- Region
- not restricted
- Release range
- technote updated 2024-09-03
- Checked
- 2026-10-01
Sources
- Resolve Collaboration Edge Most Common Issues — Cisco Systems · tier 2 current vendor documentation · Call-Related Issues > No Media over MRA
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting Expressway Mobile and Remote Access: source note expressway-mra-troubleshooting-single-nic-nat-reflect. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-mra-troubleshooting-single-nic-nat-reflect
BibTeX
@misc{warmtransfer-claim-expressway-mra-troubleshooting-single-nic-nat-reflect,
title = {Troubleshooting Expressway Mobile and Remote Access: source note expressway-mra-troubleshooting-single-nic-nat-reflect},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-mra-troubleshooting-single-nic-nat-reflect},
note = {Source note expressway-mra-troubleshooting-single-nic-nat-reflect, checked 2026-10-01}
}