Digi-Frame DF-1710 User Manual page 37

Manually Configuring Network Settings
For special networking situations not using DHCP, you can manually set your DF-1710's IP address, Network
Mask, Network Gateway, and DNS addresses for either wired and wireless ethernet connections by using either
the "Modify Network Settings" selection of the Main Menu, or by specifying them in dfos.ini.
Overriding DHCP
The presence of a DHCP server on the network at boot-up time will always override the manually-set addresses
unless "Override DHCP Server" is selected from the Network Settings menu or DHCPOVERRIDE=1 is specified
in dfos.ini, in which case the Digi-Frame will always use the manually-set IP address and ignore any DHCP
server on the network. Please note that if you override DHCP you must ensure that there are no duplicated
addresses on your network or communications will fail, and you must manually set all other network
configuration settings including DNS in order to be able to fetch remote media, webpages, and script files.
Refreshing IP Addresses from a DHCP Server
You can force the DF-1710 to reacquire an IP address from the DHCP server by going to "System Information"
in the Main Menu and pressing the back-arrow key.
DHCP Address Leases
By default, the Digi-Frame will cache DHCP leases across reboots. To override this behavior, you can connect
to the DF-1710 via ftp and create a dummy file in the root ftp directory named "dhcp.dyn". If this file exists,
your DF-1710 will NOT cache its leased address; each time it reboots, it will request a new address from the
DHCP server. The behavioral difference between these two modes depends on your network configuration.
Most DHCP server products will attempt to reissue the same IP address to the same MAC address where
possible, so your DF-1710's IP address should remain constant in either mode. Some DHCP products, however,
may issue a new address to the product each time it boots. This issue has been observed most frequently with
simple residential router boxes used to share a home DSL or cable modem connection. The best way to avoid
this type of problem is to use a more advanced DHCP product that is either linked to a DNS server (so that you
can use "friendly" names to access your frames, e.g. "digiframe-foyer", "digiframe-managers-office", etc) or
can be configured to reserve specific IP addresses for specific MAC addresses. Consult the documentation for
your DHCP/DNS server software for assistance on configuring these network parameters.
Firewall Issues
If your Internet connection passes through a firewall (such as a DSL/cable router that implements NAT), and
you need to be able to establish inbound ("push") connections to Digi-Frames from outside the firewall, you'll
need to establish port mapping so that you can connect to at least port 21 (ftp). For compatibility with future
software updates, we also suggest you make port 80 (http) accessible unless you have security concerns about
this action. To overcome firewall limitations the DF-1710 offers "pull" mode; see other sections of this manual
for more details.
Restoring the System Configuration File
If your DF-1710 freezes at the "Continuing" startup message or exhibits unreliable network behaviour, it may
be due to a corrupted system configuration file. To restore the system configuration file to default settings,
reboot the frame and hold down the Pause button on the remote control when the blue screen appears with a
prompt. You will be presented with a dialog box giving you the choice to restore the factory configuration
settings or to continue with normal boot-up.
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User_Manual_RP3001k.doc