Source note · Troubleshooting Expressway Mobile and Remote Access
Per Cisco's X15.5 guidance, SSH tunnels that stay inactive while the UC traversal zone is active indicate the client certificate lacks the Client Authentication EKU needed for port 2222.
Checked 2026-10-01
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- ssh-tunnels
- 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 · Troubleshooting Log Indicators for EKU Failures > SSH Tunnel Failure Pattern
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting Expressway Mobile and Remote Access: source note expressway-mra-troubleshooting-eku-ssh-tunnel-sign. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-mra-troubleshooting-eku-ssh-tunnel-sign
BibTeX
@misc{warmtransfer-claim-expressway-mra-troubleshooting-eku-ssh-tunnel-sign,
title = {Troubleshooting Expressway Mobile and Remote Access: source note expressway-mra-troubleshooting-eku-ssh-tunnel-sign},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-mra-troubleshooting-eku-ssh-tunnel-sign},
note = {Source note expressway-mra-troubleshooting-eku-ssh-tunnel-sign, checked 2026-10-01}
}