Sierra Wireless EV-DO - Manual (Page 73)

Data Communication and Host Modes
Rev 3.0B Feb.08 68
Figure 7-6: AceManager : PPP/Ethernet
• *HOSTPRIVMODE ‐ Set to 1 to enable the explicit IP
addresses.
• *HOSTPRIVIP ‐ Set to the IP address you want the
PinPoint‐E to give to your device.
• *HOSTPEERIP ‐ Set to the IP address you want for the
PinPoint‐E.
• *HOSTNETMASK ‐ Set to the subnetmask, generally
255.255.255.0.
Tip: If you are using Private Mode (*HOSTPRIVMODE=1), you will
need to make sure that *HOSTPRIVIP and *HOSTPEERIP are on the
same subnet. If the subnet mask is 255.255.255.0, it is safe to use
192.168.x.y for each as long as the x is the same number (0 in the
example screen shot above) and the y is different (1 and 2 in the
example) and between 0 and 254.
Internal DHCP Server
DHCP (Dynamic Host Configuration Protocol) has become a
primary component of today’s network environments. DHCP
allows one server to automatically and dynamically allocate
network IP addresses and other network related settings (such
as subnet masks, routers, etc.) to each computer or device
without the need to set up each specifically or keep track of
what addresses have already been used.
In a default configuration, the PinPoint‐E acts as a DHCP host
to any device connected to its ports, providing that device with
an IP address which can be used to communicate on the
Internet. In Public Mode, that will be the IP address assigned
by the cellular network. In Private Mode, that will be the IP
address defined in *HOSTPRIVIP.