Environment : This article applies to all ClearPass OS versions.
ClearPass Policy Manager/Guest:-
RFC 3576 - UDP port 3799
RADIUS - UDP port 1812
RADIUS Accounting Server - UDP port 1813
HTTP : TCP port 80
HTTPS: TCP port 443
CPPM cluster (subscriber-publisher):-
NTP - UDP Port 123 (Subscriber to publisher)
HTTPS - TCP Port 443 (Bi-directional)
Default ports for various databases supported by CPPM.
CPPM To ClearPass Guest:-
HTTPS - TCP 443
CPPM to Active Directory:-
UDP Port 88 for Kerberos authentication
UDP and TCP Port 135 for domain controllers-to-domain controller and client to domain controller operations.
TCP Port 139 and UDP 138 for File Replication Service between domain controllers. (Probably not necessary for CPPM)
UDP Port 389 for LDAP to handle normal queries from client computers to the domain controllers.
TCP and UDP Port 445 for File Replication Service (Probably not necessary for CPPM)
TCP and UDP Port 464 for Kerberos Password Change
TCP Port 3268 and 3269 for Global Catalog from client to domain controller.
TCP and UDP Port 53 for DNS from client to domain controller and domain controller to domain controller.
CPPM to Onguard client:-
6658 TCP for Onguard client to communicate with CPPM. Otherwise client doesn't appear in Onguard Activity tab
This info is available in Arubapedia at https://arubapedia.arubanetworks.com/arubapedia/index.php/Ports_needed_if_a_firewalls_within_wired_infrastructure