The prerequisites for configuring Anycast BGP.
- BGP hardware and network set-up—you have properly set up and configured autonomous systems containing a BGP peer, and you have configured the DNS Servers that will be part of Anycast BGP with necessary IPv4 and IPv6 addresses.
- DNS/DHCP Servers under Address Manager
control—all DNS Servers that will be part of Anycast BGP have been
individually added and are managed by Address Manager.Note:
- Dedicated management is supported with Anycast BGP.
- IPv4/IPv6 addresses configured on the Service interface (eth0) must be on different subnets.
- DNS service—you have created views, zones, deployment roles, and
resource records required for your Anycast BGP network and you have deployed DNS service
to your DNS Servers. DNS service must be running for you to configure
Anycast.Note: DNS data on the secondary DNS Server may not populate until the entire Anycast BGP network is operational.Attention: Autonomous System Numbers
Anycast BGP requires an Autonomous System Number (ASN) allocated for each Autonomous System in the Anycast BGP network. Any ASNs used in the Internet must be officially registered and allocated by the Internet Assigned Numbers Authority (IANA). If ASNs are only used within a corporate network and the corresponding AS has no direct connection to the Internet, then ASNs may be chosen freely from within the range reserved for private use: 64512-65534.
For more information on ASNs, refer to https://www.iana.org/assignments/as-numbers/as-numbers.xhtml