Configuring BGP service - Adaptive Applications - BlueCat Gateway - 21.3

BlueCat Distributed DDNS Administration Guide
Locale
English
Product name
BlueCat Gateway
Version
21.3

The following section guides you through the configuration of BGP for Quagga service. The routers in your network must be configured for use with BGP before using Anycast. For additional information on Quagga BGP, refer to https://www.nongnu.org/quagga/docs/docs-multi/BGP.html.

Configuring BGP service in an IPv4 environment

The following section goes through the steps required to configure the following BGP topology.



  1. Log in to the Address Manager server where the DNS/DHCP Server has been deployed as a service node.
  2. Select the Servers tab.
  3. Under Servers, click the name of the DNS/DHCP Server that the service node has been deployed to.
  4. Click the server name menu button and select Service Configuration.
  5. Under the Interface column, choose the loopback (lo) interface then navigate across the row to the Action column and click Edit.
  6. Complete the following:
    • In the Description field, enter a name for the new loopback address. You can enter up to 80 alphanumeric characters including spaces, but excluding special characters.
    • In the Address/CIDR field, enter 14.0.0.14/32.
    • Click Add Address. The loopback address appears in the Addresses list.
  7. Click OK. The Edit Interfaces pop-up window closes.
  8. Log in to the Gateway instance that has the Distributed DDNS Application Node.
  9. Under AVAILABLE ACTIONS, click Distributed DDNS.
  10. Click the Service Points tab to access the service node page.
  11. Click Anycast service.
  12. Under the Configuration tab, select BGP.
  13. In the configuration window, enter the following information:
    !bgpd.conf
!
router bgp 200
network 14.0.0.4/32
neighbor 11.0.0.3 remote-as 200
neighbor 11.0.0.3 update-source ens33
!
    Where the parameters represent the following:
    • router bgp 200: Enable a BGP process with the specified Autonomous System Number (ASN). Anycast BGP requires an ASN allocated for each Autonomous System in the Anycast BGP network. Any ASNs used on 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 must be defined within the following range for private use: 64512-65534.
    • network 14.0.0.4/32: Announces the specific network to all neighbours
    • neighbor 11.0.0.3 remote-as 200: Creates a new neighbor whose remote-as is the asn. The peer can be an IPv4 or IPv6 address.
    • neighbor 11.0.0.3 update-source ens33: Specify the IPv4 source address for use for the BGP session to this neighbour. This can be specified as either an IPv4 address directly or as an interface name (in which case the zebra daemon must be running for bgpd to be able to retrieve the interface state).
  14. Click Start to enable the BGP service.
  15. Click Save to save the BGP service configuration and add the service to the Distributed DDNS Service Node.
  16. Repeat steps 8 to 12 for the second service node, updating the ASN and IP address when updating the BGP configuration information.

Configuring BGP service in an IPv6 environment

The following section goes through the steps required to configure the following BGP topology.



  1. Log in to the Address Manager server where the DNS/DHCP Server has been deployed as a service node.
  2. Select the Servers tab.
  3. Under Servers, click the name of the DNS/DHCP Server that the service node has been deployed to.
  4. Click the server name menu button and select Service Configuration.
  5. Under the Interface column, choose the loopback (lo) interface then navigate across the row to the Action column and click Edit.
  6. Complete the following:
    • In the Description field, enter a name for the new loopback address. You can enter up to 80 alphanumeric characters including spaces, but excluding special characters.
    • In the Address/CIDR field, enter 2001:200:1:f:10::1/128.
    • Click Add Address. The loopback address appears in the Addresses list.
  7. Click OK. The Edit Interfaces pop-up window closes.
  8. Log in to the Gateway instance that has the Distributed DDNS Application Node.
  9. Under AVAILABLE ACTIONS, click Distributed DDNS.
  10. Click the Service Points tab to access the service node page.
  11. Click Anycast service.
  12. Under the Configuration tab, select BGP.
  13. In the configuration window, enter the following information:
    !bgpd.conf
!
router bgp 200
network 2001:db8:acad:a::1 remote-as 200
!
address-family ipv6
network 2001:200:1:f:10::1/128
neighbor 2001:db8:acad:a::1 active
exit-address-family
!
  14. Click Start to enable the BGP service.
  15. Click Save to save the BGP service configuration and add the service to the Distributed DDNS Service Node.
  16. Repeat steps 8 to 12 for the second service node, updating the ASN and IP address when updating the BGP configuration information.