Port 179 — BGP
Quick reference for TCP/UDP port 179, used by BGP. Includes what the service does, security guidance and related ports.
Port
179
Protocol
TCP
Service
BGP
What is port 179?
Border Gateway Protocol for inter-AS routing.
What port does BGP use?
BGP listens on port 179 by default.
Security guidance
Medium risk — open with care
Port 179 (BGP) 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 179 used for?+
Port 179 is the standard TCP/UDP port for BGP. Border Gateway Protocol for inter-AS routing.
What port does BGP use?+
BGP listens on port 179 by default.
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