SonicOS/X 7 Network DNS
- SonicOS and SonicOSX 7
- Configuring DNS Settings
- Configuring Dynamic DNS
- Configuring DNS Proxy Settings
- Configuring DNS Security
- SonicWall Support
About Dynamic DNS
Dynamic DNS (DDNS) is a service provided by various companies and organizations that allows for dynamic changing IP addresses to automatically update DNS records without manual intervention. This service allows for network access using domain names rather than IP addresses, even when the target’s IP addresses change. For example, is a user has a DSL connection with a dynamically assigned IP address from the ISP, the user can use DDNS to register the IP address, and any subsequent address changes, with a DDNS service provider so that external hosts can reach it using an unchanging domain name.
Dynamic DNS implementations change from one service provider to another. There is no strict standard for the method of communication, for the types of records that can be registered, or for the types of services that can be offered. Some providers offer premium versions of their services, as well, for a fee. As such, supporting a particular DDNS provider requires explicit interoperability with that provider's specific implementation.
Most providers strongly prefer that DDNS records only be updated when IP address changes occur. Frequent updates, particularly when the registered IP address is unchanged, may be considered abuse by providers, and could result in your DDNS account getting locked out. Refer to the use policies posted on the provider's pages and abide by the guidelines. SonicWall does not provide technical support for DDNS providers; the providers themselves must be contacted.
Dynamic DNS is supported for both IPv4 and IPv6.
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