To connect to your LANCOM R&S®Unified Firewall from the external network, e. g. with a VPN connection, the IP address of your device has to be recognized on the Internet. Using dynamic DNS ("DynDNS"), your LANCOM R&S®Unified Firewall retrieves a fixed host name (e. g. yourcompany.dyndns.org) on the Internet, even if it has no fixed public IP address. This is accomplished by sending the current IP address to a DynDNS provider that maps it to a domain name so that the firewall is accessible using that domain name. If, for example, the IP address changes due to a DSL disconnect forced by your Internet service provider, the IP address is re-sent to the DynDNS provider. This behavior ensures that the dynamic DNS always points to the current IP address.
To set up DynDNS on your LANCOM R&S®Unified Firewall, you require a configured DynDNS account with a DynDNS provider. For more information about dynamic DNS and to register for the dynamic DNS process, go to www.dyndns.org.
You can find more information regarding dynamic DNS accounts in the following sections.
