2 Basic GSLB for IPv6 configuration
DNS override allows the ServerIron ADX to replace the IP address in the DNS reply with the IP addresses you configure for the DNS cache proxy. These addresses are defined in the IP list.
Before specifying the IP list, you must define the hosts and their associated health checks (if applicable). You also must specify the host names and applications that you want to provide global server load balancing for. For example, assume that brocade.com contains the following host names and applications: www.brocade.com (HTTP) and ftp.brocade.com (FTP).
3. Specify a zone and host names within that zone.
ServerIronADX(config)# gslb dns
When you configure the GSLB ServerIron ADX, you also specify the zones for which you want the ServerIron ADX to provide global server load balancing. These are the zones for which the GSLB controller server is the authority (ADNS).
In this example, the GSLB ServerIron ADX is an authority for www.brocade.com and ftp.brocade.com. The GSLB ServerIron ADX will provide global server load balancing for these two.
The application specifies the type of health check the GSLB ServerIron ADX applies to IP addresses for the host. A host name can be associated with more than one application. In this case, the GSLB ServerIron ADX considers a host name’s IP address to be healthy only if the address passes all the health checks.
4. Specify the IP list.
ServerIronADX(config)# gslb policy
You can specify as many domain IP addresses as you need for a given domain. When you specify multiple domain addresses, the GSLB ServerIron ADX uses the applicable GSLB policy metrics to select the best address from the list of addresses you configure and places that address at the top of the DNS reply.
5. Specify sites and the site ServerIron ADX within the sites on the GSLB ServerIron ADX:
ServerIronADX(config)# gslb site US
ServerIronADX(config)# gslb site EU
Configuration on site ServerIron ADXs
6. Enable the GSLB protocol on each of the Site ServerIron ADXs:
ServerIronADX(config)# gslb protocol
The GSLB protocol is disabled by default on Site ServerIron ADX switches for security.
After you enable the GSLB protocol on the site ServerIron ADX switches, the GSLB ServerIron ADX finds the site ServerIron ADXs using their configured IP addresses, which you specify when you configure the remote site information.
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