The Hosts Table enables you to edit the /etc/hosts file through the WebUI or REST interface. Each line in the Hosts file contains one IP address and at least one FQDN/Host name/Domain name. 

When you create a FQDN/Hostname entry in the Host Table, you have the option to enter an IP address to resolve the FQDN/Host name, or allow the SBC to dynamically resolve the FQDN/Host name. The Dynamic Refresh option allows dynamic resolution of the FQDN/Hostname, as well as provides auto-updates in case of dynamic IP changes.

Hosts File Example localhost testux218

Usage Examples

The Hosts Table allows applications on the Sonus SBC 1000/2000, such as SIP Signaling Groups, AD, RADIUS, etc. to resolve FQDNs when a DNS server is not reachable. We recommend that only a few, very critical, host-IP pairs be stored on the Sonus SBC 1000/2000.

Another use-case is in a pre-deployment scenario in which an administrator would like to divert traffic by mapping the same FQDN to a different IP address. For example, a Sonus SBC 1000/2000 can communicate with a Lync server under test before it is added to the production network, using the same FQDN, but with a different IP address.

Working with Host Tables

  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, go to Protocols > IP > Hosts.

Changes to the Hosts Table are not dynamically applied. Reboot the Sonus SBC 1000/2000 following any modification to the Hosts Table.