Configure DNS Servers
Digi TransPort User Guide
341
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.
This is 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
on
page 344
Send an update to DNS Server a.b.c.d for
The IP address in this text box specifies the DNS server that should be sent the updated
information. The server must support
DNS Update messages
. Dynamic DNS is generally
offered as a subscription-based service by ISPs, but for a large number of deployed routers, it
may be more appropriate to set up a dedicated DNS server locally.
Name
The member of the DNS zone to update. This name is used in conjunction with the zone
parameter (below) to uniquely identify the router. So, for example, if the router has a name of
epos33
, the full address of the router will be
epos33.mycompany.com
.
Zone
The DNS zone to update. When using Dynamic DNS, it will be necessary to have domain name
(this may be purchased from an appropriate vendor). This domain name, such as
mycompany.com
is what should be entered into the zone field.