
APPENDIX
Configuration of PPP Connections
2.10
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19.01.2007
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5.2
Configuration of PPP Connections
A PPP implementation is required on the device hosting the HW 86012/22.
5.2.1 Dial-up
Options
The PPP dial-up procedure may applied using AT commands or Microsoft Direct Link
protocol.
5.2.1.1 AT
Commands
The module implements an AT command handler which is active in PPP data mode (not in
configuration mode), responding „OK“ on all incoming AT commands. Dial-up can be started
with „
ATD <any number>
“. The PT immediately responds with „
CONNECT
“ and activates
the DCD signal.
5.2.1.2 Microsoft Direct Link
Client sends „
CLIENT
“, the PC responds with "
CLIENTSERVER
" and sets DCD. This option
can not be used if DHCP is not available and gateway and netmask settings must be
configured manually.
5.2.2 PPP
Options
After successful dial-up the PPP options will be negotiated.
5.2.3 DHCP
available
Through DHCP the PT derives the following configurations:
1. IP address for PPP client
2. IP-address DNS server 1
3. IP-address DNS server 2
4. IP-address WINS server 1
5. IP-address WINS server 2
6. IP-address gateway
7. Netmask
1. to 5. are transferred to the client during PPP connection establishment.
6. and 7. are only required by the PT for internal usage.
5.2.4 DHCP not available
In case a DHCP server is not available parameters 1. to 5. will be configured by the client’s
PPP access software. It is possible to configure the gateway address and netmask through
PPP options. In case the network consists of several sub-networks those parameters must
be set through the following AT commands:
AT+GW=a.b.c.d
configures gateway address.
AT+NM=a.b.c.d
configures netmask.