DNS Configuration

Use this page if you need to set your special DNS IP address.

Select Network Configuration / DNS Configuration.

 

If the receiver I/O configuration is using any domain name (such as “ntrip1.trimblehh.com”), the receiver needs to resolve the domain name string to an IP address; the DNS server serves that purpose. Many systems, such as the Microsoft® Windows® operating system, have two DNS IP addresses; primary DNS and secondary DNS. If the primary DNS cannot be reached, the secondary DNS is used. If the secondary DNS also fails, then the domain name cannot be resolved and the system cannot reach the specified address.

Usually when a receiver is configured in DHCP mode, the DHCP assigns an IP address to the receiver along with a DNS IP address (both primary and secondary DNS). By default, the receiver uses the DHCP assigned DNS address. You do not have to do anything on this settings page unless you do not want to use the assigned DNS IP address.

If the receiver is configured as static mode, you must configure the DNS address in addition to the Ethernet Configuration page where you configure the IP address, Netmask, Broadcast, Gateway, hostname, and MTU settings.

The DNS address will be changed accordingly when the default interface is changed. For example, when using PPP over internal/external GPRS modem, the default interface is set to PPP over GPRS modem, and the PPP server will assign its special DNS address to the connection. The system will obtain a DNS address from the PPP connection unless it is “forced”. When PPP is disconnected, the DNS address will be changed back to the ethernet DNS address. The priority of DNS addresses and default route is:

  1. PPP over GPRS connection.

  2. Ethernet.

  3. Other PPPs.

  4. Wi-Fi connection.

DNS IPv4 Address – Displays the current DNS address.

Sec DNS Addr – Displays the secondary DNS address.

Force DNS Address – When you select this check box, you can enter a specific DNS Server IP address and DNS Domain Name. After you click Change Configuration, this DNS IP address and DNS Domain Name is used in the system. If this check box is selected, the system uses the supplied DNS address and ignores any DNS address assigned by an DHCP or PPP server. Whether you have ethernet or PPP, the DNS IP address is forced.

DNS IPv4 Address – Enter the DNS (Domain Name Server) address for the network that the receiver will connect to. This field cannot be edited when using DHCP. In DHCP mode, the DNS Address is sent to the receiver and is unique for each customer's LAN. If you require a static IP setup, this DNS address will have to be obtained by an system administrator.

Sec DNS Addr – Enter the Secondary DNS (Domain Name Server) address for the network that the receiver will connect to.

DNS Domain – Enter the DNS domain for the network that the receiver will connect to. This field cannot be edited when using DHCP. The DNS Domain name also comes from the DHCP server and is mainly used by mDNS and UPnP.

DNS Proxy – The ability to enable/disable the DNS proxy provides better network security when a client is connecting to the internet using a receiver over PPP or Wi-Fi. As a guideline this should be enabled in the following circumstances, but depends on your network:

  1. If the system is in Wi-Fi AP mode and has any Wi-Fi client connected and has upstream DNS available.

  2. If the receiver is a PPP server and has upstream DNS available.

DNS Local – When set to Enabled, the receiver responds to DNS queries for the host "GNSS" on Wi-Fi, Bluetooth PAN, and USB RNDIS (if supported) interfaces with the associated local IP address on each interface. Either "GNSS" or the SSID may be used on a Wi-Fi interface. For example, this allows a user to access the web interface using "http://GNSS" or "https://GNSS" on any of these interfaces.

Change Configuration – When this is button is clicked, these new settings will be applied for the static configuration. Any static settings will be over written if the system goes to factory defaults (DHCP). If the Force DNS Address check box is not selected and the Change Configuration button is clicked, then the provided DNS will be set to the system once, but it will not be forced and in the DHCP case the next DHCP renew will overwrite the DNS addresses that you just set.