Cyclades AlterPath OnBoard, Administrator'S Manual

Page: 81 / 460

Introduction 45
Understanding Modem Access Through the OnBoards
Modem Initialization
The modem chat string is used to configure the modem
when it is turned on or when the communications software
calls another modem. An example follows:
TIMEOUT 10
"" \d\l\dATZ
OK\r\n-ATZ-OK\r\n ""
TIMEOUT 10
"" ATM0
OK\r\n ""
TIMEOUT 3600
RING ""
STATUS Incoming %p:I.HANDSHAKE
"" ATA
TIMEOUT 60
CONNECT@ ""
STATUS Connected %p:I.HANDSHAKE
Local IP Address
The local IP address used by PPP to set up the session
between the local and the remote modem. By default, the IP
address of the OnBoard is used. Use the default unless you
have a specific reason to use another IP address.
Remote IP Address
The remote IP address used by PPP to set up the session
between the local and the remote modem. By default, the IP
address 10.0.0.1 is used. Use the default unless you have a
specific reason to use another IP address.
Authentication Required
Require authentication or not.
MTU/MRU
The maximum transmission unit / maximum receive units
for PPP type connections. Default MTU=1500 MRU=1500
Table 1-20: Modem Configuration Field and Menu Definitions (Sheet 2 of 3)
Field or Menu Option Options