© 2022 Ciena Intellectual Property, All rights reserved
This section presents the following topics:
To be able to translate host names (such as www.brocade.com) to IP addresses (such as 220.127.116.11), the system must be able to access a DNS server.
Configuring access to a DNS server is a function of basic system management, and is described in
DDNS allows the
The individual providers offer instructions for sign-up.
The following example shows how to set up DDNS for DDNS service provider DynDNS. It is assumed for this example that you have already signed up with DynDNS). To configure the
At this point, whenever the IP address on dp0p1p1 changes, the
Name server locations can be obtained in three ways:
By default, the
These three options can be used in any combination; however, using any of them eliminates the default DNS forwarding behavior.
When DNS forwarding starts or restarts, it broadcasts a message to all the name servers in the pool and selects the first name server to answer. This name server is used unless it becomes unreachable, in which case the system sends another broadcast message to the remaining name servers in the pool.
The listening interfaces are the interfaces to which internal clients forward DNS requests. The DNS forwarding service listens for these requests and forwards them to the name server.
To set the listening interface, use
After these steps are completed, DNS forwarding is set up. At this point, the