Source note · Troubleshooting Expressway Mobile and Remote Access
In Cisco's X15.5 tests, MRA plus UC traversal plus SSH tunnels worked when the Expressway-C client certificate held both Server and Client EKU and all other certificates were Server EKU only; with Server-only EKU on Expressway-C and EKU checking ON at Expressway-E, the UC zone showed FAILED.
Checked 2026-10-01
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- traversal-zone
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X15.5
- Checked
- 2026-10-01
Sources
- Navigate Client EKU Sunset with Expressway x15.5 — Cisco Systems · tier 2 current vendor documentation · Critical EKU Requirements by Use Case; Test Case 1
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting Expressway Mobile and Remote Access: source note expressway-mra-troubleshooting-x155-core-both-eku. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-mra-troubleshooting-x155-core-both-eku
BibTeX
@misc{warmtransfer-claim-expressway-mra-troubleshooting-x155-core-both-eku,
title = {Troubleshooting Expressway Mobile and Remote Access: source note expressway-mra-troubleshooting-x155-core-both-eku},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-mra-troubleshooting-x155-core-both-eku},
note = {Source note expressway-mra-troubleshooting-x155-core-both-eku, checked 2026-10-01}
}