For the UC zone on X15.5 Cisco TAC recommends an Expressway-C client certificate carrying both client and server EKU ideally from an internal CA while its server certificate may be a public server-only-EKU certificate.

Checked 2026-09-24

Vendor
Cisco
Product
Cisco Expressway
Subsystem
certificates
Deployment
on-premises
Region
not restricted
Release range
X15.5 and later
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Setting up Mobile and Remote Access on Cisco Expressway: source note expressway-mra-setup-x155-expc-client-cert. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-mra-setup-x155-expc-client-cert

BibTeX

@misc{warmtransfer-claim-expressway-mra-setup-x155-expc-client-cert,
  title  = {Setting up Mobile and Remote Access on Cisco Expressway: source note expressway-mra-setup-x155-expc-client-cert},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/expressway-mra-setup-x155-expc-client-cert},
  note   = {Source note expressway-mra-setup-x155-expc-client-cert, checked 2026-09-24}
}

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