Port
Port 49 — TACACS+
Port 49 (UDP) is used by TACACS+. Cisco AAA (authentication, authorisation, accounting) protocol.
Port 49 at a glance
| Property | Value |
|---|---|
| Port number | 49 |
| Transport | UDP |
| Service | TACACS+ |
| Category | Well-known port |
What it is used for
Cisco AAA (authentication, authorisation, accounting) protocol.
Security considerations
Encrypts the full payload (unlike RADIUS). Restrict to management networks.
See our full TCP/UDP port reference and learn how firewalls filter ports in the CyberOps course.
Frequently asked questions
What is port 49 used for?
Port 49 (UDP) is used by TACACS+. Cisco AAA (authentication, authorisation, accounting) protocol.
Is port 49 TCP or UDP?
Port 49 uses UDP.
Is it safe to open port 49?
Encrypts the full payload (unlike RADIUS). Restrict to management networks.
Related
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