Digi TransPort WR31 User Manual page 296

Configure network interfaces
Multilink PPP parameters
As mentioned above, the routers may support multilink PPP. This section describes the
configuration of MLPP functionality.
The PPP interface must be configured with Always On mode enabled and an AODI NUA.
Desired local ACCM c
The Asynchronous Control Character Map (ACCM). The default value of 0x00000000 should work
in most cases. Changing this value is for advanced users only.
Desired remote ACCM c
The ACCM for the remote peer. As above, the default value of 0xffffffff should work in most
cases and should only be changed if you know you need to use other characters.
Username
The username for logging on to the remote system.
Password
The password for authentication with the remote system when using MLPP. This password is for
both B-channel PPP connections.
Confirm password
When changing the password, type the new password into this text box. The router checks that
both fields are the same before changing the value.
Enable remote CHAP authentication
When enabled, causes the router to authenticate itself with the remote system using CHAP. If
this parameter is set, the connection will fail if authentication fails. Generally, this setting should
be left disabled.
Enable short sequence numbers
When enabled, enables the use of 12-bit data packet sequence numbers, rather than the more
usual 16-bit data packet sequence numbers.
Bring up the second ISDN B-channel
Never
When selected, causes the router not to activate the second B-channel.
When the data rate is greater than n bytes/sec for s seconds
When selected, the two associated text boxes become enabled and allow the user to enter the
desired data rate (default 2000 bytes/second) that will trigger activation of the second B-
channel and the period for which the data rate exceeds that value, before the channel is
activated.
Digi TransPort WR Routers User Guide
Configure Advanced interfaces settings: External modems and PPP
296