Configuring DNS DNS Server Update parameters
Digi TransPort® Routers User Guide
416
Route using
Routing table / Interface x,y
Control whether the router should look up the route to the DNS server by using the routing
table or should send the DNS query out of a specific interface. Selecting the Interface radio
button enables the drop-down box and interface instance text box. Available options for the
interface are PPP and Ethernet. Fill in the adjacent text box with the number of a valid
instance of the interface, such as Ethernet 3. (Different router models support different
numbers of interfaces).
Use source IP Address of
Sending interface / Interface x,y
Control whether the DNS query should go out having the source address of the sending
interface or a different interface. This will be required for routing if the route to the DNS server
is via an IPsec tunnel, to ensure the local and remote subnet selectors match.
3. Click Apply.
Command line
Command Instance Parameter Values Equivalent web parameter
dnssel n pattern *.domain.com For DNS requests matching
pattern, send the request to
dnssel n svr Valid IP address DNS Server a.b.c.d
dnssel n secsvr Valid IP address Secondary DNS Server a.b.c.d
dnssel n ent PPP, Ethernet Interface x,y
dnssel n add Valid interface number Interface x,y
dnssel n ipent PPP, Ethernet Interface x,y
dnssel n ipadd Valid interface number Interface x,y
DNS Server Update parameters
Dynamic DNS is supported in accordance with RFC2136 and RFC2485. This allows routers to update
specified DNS servers with their IP addresses when they first connect to the Internet and at regular
intervals thereafter. The parameters in this section control how the router updates a specified DNS
server with its IP address when it first connects to the Internet and at regular intervals thereafter.
The parameters set here are not to be confused with the popular dynamic DNS service dyndns.com;
there is a separate page for configuring the router to work with dyndns.com. See Configure Dynamic
DNS (DynDNS).
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Web
Go to Configuration > Network > DNS Servers >DNS Server Update.