Aruba RAP-155 - Enabling Dynamic DNS; Dynamic DNS Registration

Aruba Instant 6.5.0.0-4.3.0.0 | User Guide Dynamic DNS Registration | 225
Chapter 17
Dynamic DNS Registration
This chapter describes the procedure for configuring Dynamic DNS (DDNS) on IAPs and their clients. It includes
the following topics:
l Enabling Dynamic DNS on page 225
l Configuring Dynamic DNSUpdates for Clients on page 226
l Verifying the Configuration on page 227
Enabling Dynamic DNS
Starting from Instant 6.4.4.4-4.2.3.0, IAPs support the dynamic DNS feature which enables updating the
DNSrecords of the IAP and the clients connected to it. In a scenario where the public IP address is dynamically
handed to the IAP by the ISP, there are instances when the client loses remote connectivity to the IAP when
there is a change in the IPaddress. Similarly, in case of IAP clients, where the IAP acts as a DHCP server, the host
becomes unreachable when the dynamically assigned IPaddress is changed. The dynamic DNS feature
eliminates these issues by configuring a domain name, thus providing a uniform approach to access the IAP or
the clients. The IP address of the dynamic DNS client is mapped to the domain name and this gets
automatically updated each time the IP address is changed.
You can enable Dynamic DNSusing the Instant UI or the CLI.
In the Instant UI
To enable dynamic DNS:
1. Navigate to Services > Dynamic DNS.
2. Select the Enable Dynamic DNScheck box.