Source note · Setting up certificates on Cisco Expressway

X15.5 adds the CLI setting xConfiguration SIP TLS Certificate ExtendedKeyUsage Checking Mode (On or Off), which controls the client-EKU check on inbound SIP TLS connections.

Checked 2026-09-30

Vendor: Cisco
Product: Cisco Expressway
Subsystem: eku
Deployment: on-premises
Region: not restricted
Release range: X15.5 and later
Checked: 2026-09-30

Sources

Navigate Client EKU Sunset with Expressway x15.5 — Cisco Systems · tier 2 current vendor documentation · Configure > EKU validation toggle

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up certificates on Cisco Expressway: source note expressway-certificate-setup-x155-eku-check-cli. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-certificate-setup-x155-eku-check-cli

BibTeX

@misc{warmtransfer-claim-expressway-certificate-setup-x155-eku-check-cli,
  title  = {Setting up certificates on Cisco Expressway: source note expressway-certificate-setup-x155-eku-check-cli},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/expressway-certificate-setup-x155-eku-check-cli},
  note   = {Source note expressway-certificate-setup-x155-eku-check-cli, checked 2026-09-30}
}

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