Used for User-ID
User-ID is a feature that enables mapping of user IP addresses to usernames and group memberships, enabling user- or group-based policy and visibility into user activity on your network (for example, to be able to quickly track down a user who may be the victim of a threat). To perform this mapping, the firewall, the User-ID agent (either installed on a Windows-based system or the PAN-OS integrated agent running on the firewall), and/or the Terminal Services agent must be able to connect to directory services on your network to perform Group Mapping and User Mapping. Additionally, if the agents are running on systems external to the firewall, they must be able to connect to the firewall to communicate the IP address to username mappings to the firewall. The following table lists the communication requirements for User-ID along with the port numbers required to establish connections.
Port the firewall listens on for user mapping information from the User-ID or Terminal Services agent. The agent sends the IP address and username mapping along with a timestamp whenever it learns of a new or updated mapping. In addition, it connects to the firewall at regular intervals to refresh known mappings.
Port the User-ID agent uses to authenticate to a Kerberos server. The firewall tries UDP first and falls back to TCP.
Port the User-ID agent uses to authenticate to a RADIUS server.
Port the User-ID agent uses to authenticate to a TACACS+ server.
Port the User-ID agent uses to establish TCP-based WMI connections with the Microsoft Remote Procedure Call (RPC) Endpoint Mapper. The Endpoint Mapper then assigns the agent a randomly assigned port in the 49152-65535 port range. The agent uses this connection to make RPC queries for Exchange Server or AD server security logs, session tables. This is also the port used to access Terminal Services.
The User-ID agent also uses this port to connect to client systems to perform Windows Management Instrumentation (WMI) probing.
Port the User-ID agent uses to establish TCP-based NetBIOS connections to the AD server so that it can send RPC queries for security logs and session information.
The User-ID agent also uses this port to connect to client systems for NetBIOS probing (supported on the Windows-based User-ID agent only).
Port the User-ID agent uses to connect to the Active Directory (AD) using TCP-based SMB connections to the AD server for access to user logon information (print spooler and Net Logon).
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