179 BGPBorder Gateway Protocol — exchanges routing information between autonomous systems.
Between routers/peers. Protect with MD5/TCP-AO and strict ACLs.
| Transport | Status | Meaning |
|---|---|---|
| TCP | Yes | Assigned by IANA and standardized, specified, or widely used on this port. |
| UDP | Assigned | Assigned by IANA, but not standardized, specified, or widely used on this port. |
| SCTP | Yes | Assigned by IANA and standardized, specified, or widely used on this port. |
| DCCP | — | Not applicable for this transport. |
Well-known (0–1023). System port for a core service. On Unix-like systems, binding it requires superuser privileges.
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