Digi WAN 3G User Manual page 54

IP Pass-through settings: Configures a Digi Cellular Family device to pass its mobile

IP address directly through and to the Ethernet device (router or PC) to which it is
connected through the Ethernet port. The Digi Cellular Family device becomes
transparent (similar to the behavior of a cable or DSL modem) to provide a bridge from
the mobile network directly to the end device attached to the Digi Cellular Family
device. See page 79.
 Host List settings: Adds or removes entries from the host list. For DialServ, the host list
provides a means to map a phone number (in the local name field) to a network
destination, (in the "resolves_to" field). See page 90.
Virtual Router Redundancy Protocol (VRRP) settings: For configuring a number of

routers to represent a virtual router, which simplifies configuration of hosts on a
network.
Advanced Network Settings: Configures the Ethernet Interface speed and mode, TCP/

IP settings, TCP keepalive settings, and DHCP settings. See page 92.
Alternatives for configuring network communications
There are three ways a Digi device can be configured on the network.
Using dynamic settings: All network settings will be assigned automatically by the

network, using a protocol called DHCP. Contact your network administrator to find out
if a DHCP server is available.
Using static settings: All network settings are set manually and will not change. The IP

address and subnet mask are mandatory. The rest are not mandatory, but may be needed
for some functions. Contact your network administrator for the required values.
 Using Auto-IP: Auto-IP assigns an IP address to the Digi device immediately after it is
plugged in. If running DHCP or ADDP, the Auto-IP address is overridden and a network
compatible IP address is assigned, or a static IP address can be assigned.
Digi Cellular Family products have two IP addresses: one for Ethernet and one for cellular. All
Digi Cellular Family products have a pre-defined default Ethernet Port IP address of 192.168.1.1.
Even if a DHCP server is available, the device configuration may work better with static settings.
Once set, static settings will not change, so you and other network devices can always find the Digi
device by its IP address. With dynamic settings, the DHCP server can change the IP address. This
can happen frequently or infrequently depending on how your network administrator has
configured the network.
When the IP address does change, you and other network devices configured to talk to the Digi
device can no longer access the device. In this case, the Digi device must be located the Digi
Device Discovery utility, and other network devices that need to communicate with the Digi device
must be reconfigured.
C o n f i g u r e D i g i d e v i c e s
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