Port 179
BGPInter-ISP routing protocol that connects the internet (BGP)
Full name:
Border Gateway Protocol
What is port 179?
BGP (Border Gateway Protocol) on port 179 is the routing protocol that holds the internet together. ISPs, hosting providers, and large enterprises use it to exchange routing information between Autonomous Systems (AS). Every time you visit a website, BGP has determined the path your packets take across the internet. BGP hijacking — the unauthorized advertisement of someone else's IP blocks — is a serious ongoing internet security concern.