Source note · Expressway and Mobile and Remote Access
In the X15.5 tech note's tests, the Unified Communications traversal zone and the port 2222 SSH tunnels failed or stayed inactive when Expressway-C's client certificate lacked the client EKU.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- certificates
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X15.5
- Checked
- 2026-09-24
Sources
- Navigate Client EKU Sunset with Expressway x15.5 — Cisco Systems · tier 2 current vendor documentation · Navigate Client EKU Sunset with Expressway x15.5, test scenarios
Cite this note
APA
WarmTransfer. (2026, September 24). Expressway and Mobile and Remote Access: source note cucm-expressway-mra-x155-client-eku-needed. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-expressway-mra-x155-client-eku-needed
BibTeX
@misc{warmtransfer-claim-cucm-expressway-mra-x155-client-eku-needed,
title = {Expressway and Mobile and Remote Access: source note cucm-expressway-mra-x155-client-eku-needed},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-expressway-mra-x155-client-eku-needed},
note = {Source note cucm-expressway-mra-x155-client-eku-needed, checked 2026-09-24}
}