What is BGP (BGP-4)?
By Gabriel Cooper
What is BGP (BGP-4)?
Routing Protocols (such as BGP, OSPF, RIP, EIGRP, etc…) are designed to help routers advertise adjacent networks and since the internet is a network of networks, BGP helps to propagate these networks to all BGP Routers across the world. BGP is defined by IETF in RFC 4271 and we are currently on version 4 (BGP4 or BGP-4) since 2006.
What is the BGP routing protocol?
Taking this comparison to its logical conclusion, the BGP routing protocol is analogous to your trusty GPS navigator. Like Google’s Waze application, the best route is determined by different factors, such as traffic congestion, roads temporarily closed for maintenance, etc.
How do I configure BGP to work with azure VPN?
If your BGP Peer IP is 10.52.255.254, you should specify “10.52.255.254/32” as the localNetworkAddressSpace of the Local Network Gateway representing this on-premises network. This is to ensure that the Azure VPN gateway establishes the BGP session through the S2S VPN tunnel.
How do I assign a BGP address to an on-premises network?
With BGP, you must allocate the host prefix (/32 prefix) of your BGP Peer IP address as the address space for that on-premises network. If your BGP Peer IP is 10.52.255.254, you should specify “10.52.255.254/32” as the localNetworkAddressSpace of the Local Network Gateway representing this on-premises network.
