The default LDAP server port is 389; when SSL is enabled, port 636 is specified.
Checked 2026-09-30
The default port is 389. If you enable SSL, specify port 636.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- LDAP Directory
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs; current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Configuration and Administration of the IM and Presence Service, Release 15 and SUs - Configure LDAP Directory — Cisco Systems · tier 2 current vendor documentation · section: Configure LDAP Directory Sync; sentence 'The default port is 389'
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up LDAP directory sync and authentication in Unified CM: source note cucm-ldap-sync-setup-default-port-389-636. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-ldap-sync-setup-default-port-389-636
BibTeX
@misc{warmtransfer-claim-cucm-ldap-sync-setup-default-port-389-636,
title = {Setting up LDAP directory sync and authentication in Unified CM: source note cucm-ldap-sync-setup-default-port-389-636},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-ldap-sync-setup-default-port-389-636},
note = {Source note cucm-ldap-sync-setup-default-port-389-636, checked 2026-09-30}
}