From Unified CM 15SU5 onwards, if a cluster's Tomcat server and Tomcat client certificates differ, both certificates must be uploaded to the peer's trust store for ILS TLS.
Checked 2026-10-01
From Release 15SU5 onwards, if the Tomcat server and Tomcat client certificates are different, you must upload both the certificates to the peer trust store.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Intercluster Lookup Service
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15SU5 and later
- Checked
- 2026-10-01
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure Intercluster Lookup Service — Cisco Systems · tier 2 current vendor documentation · Configure ILS, step 5 (note)
Cite this note
APA
WarmTransfer. (2026, October 1). Setting up ILS and Global Dial Plan Replication in Unified CM: source note cucm-ils-gdpr-setup-15su5-tomcat-client. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-ils-gdpr-setup-15su5-tomcat-client
BibTeX
@misc{warmtransfer-claim-cucm-ils-gdpr-setup-15su5-tomcat-client,
title = {Setting up ILS and Global Dial Plan Replication in Unified CM: source note cucm-ils-gdpr-setup-15su5-tomcat-client},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-ils-gdpr-setup-15su5-tomcat-client},
note = {Source note cucm-ils-gdpr-setup-15su5-tomcat-client, checked 2026-10-01}
}