Port 67 — DHCP server
Quick reference for TCP/UDP port 67, used by DHCP server. Includes what the service does, security guidance and related ports.
Port
67
Protocol
UDP
Service
DHCP server
What is port 67?
DHCP server listens for client requests.
What port does DHCP server use?
DHCP server listens on port 67 by default.
Security guidance
Medium risk — open with care
Port 67 (DHCP server) can safely face the internet if you keep the software up to date, restrict admin endpoints, and use TLS where possible. Audit who can reach it and watch your logs.
Related ports
Frequently asked
What is port 67 used for?+
Port 67 is the standard TCP/UDP port for DHCP server. DHCP server listens for client requests.
What port does DHCP server use?+
DHCP server listens on port 67 by default.
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