Airlink CDMA/1x manual PPP Mode, Slip Mode, ATDT10.0.0.1CR ATDT10001CR ATD#19788CR

Host Modes

PPP Mode

In PPP mode, the Raven acts as a PPP server, providing an IP address, and DNS servers (if available) to the Host.

PPP mode is entered from the AT mode by using any of the following commands:

AT\APPP<CR>

ATDT10.0.0.1<CR>

ATDT10001<CR>

ATD#19788<CR>

CLIENT<CR>

In response to any of the preceding commands, the modem will respond with CONNECT<CR><lf> and is ready for the host to begin PPP negotiations.

The IP received by the host in the resulting negotiation will either be a private (non- routable) IP or a public (network-routable) IP provided by the network, depending on the settings of *HOSTPRIVMODE. If *HOSTPRIVMODE=1, the value of the private IP an be determined beforehand by querying S110. The private IP to be used can be defined with the command AT*HOSTPRIVIP=192.168.100.33 sub- stituting the desired IP address.

AT*HOSTPRIVIP=192.168.100.33Using a private IP insulates the PPP client from changes in IP addresses of the underlying network. The Raven will perform basic NAT-like address translation on all packets.

If a public IP address is being used, any changes in the IP (as determined by the wireless network) will result in the PPP link to the host being disconnected, requir- ing the host to reinitiate it. The public IP is passed to the host in the PPP negotia- tions, so when the network forces a change, the modem has to force the host to renegotiate the PPP link to make this happen.

Slip Mode

SLIP mode is entered be using the "AT\ASLIP" command. As in PPP Mode, the IP address that the host assumes is affected by the setting of *HOSTPRIVMODE.

26 Raven CDMA User Guide for Verizon, version 2.23