How to Configure SBC Session Agents for Single FQDN With Multiple IP Addresses

Asset ID:	1-71-2189823.1
Update Date:	2017-05-17
Keywords:

Solution Type Technical Instruction Sure

Solution 2189823.1 : How to Configure SBC Session Agents for Single FQDN With Multiple IP Addresses

Applies to:

Net-Net 9200 - Version S-D6.0.0 and later
Information in this document applies to any platform.

Goal

Configure the session agents on the 9200 SBC to work with a carrier-provided single FQDN that has multiple IP addresses behind it.

Solution

This can not be done on the 9200 by itself. This should be done on a DNS server that the SBC is configured to use. The DNS server would be configured to recognize multiple IP addresses resolving to a single hostname.

The following parameters would need to be populated on at least one network interface

dns-ip-primary
dns-ip-backup1
dns-ip-backup2
dns-domain
dns-timeout

Without the help of a DNS server one would need to create one session agent for each represented IP address but the SBC will not allow the creation of two session agents with the same hostname.

In this situation on a 9200 the carrier will have to provide a different hostname for each IP address.

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