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Setting Up Virtual Private Networks
Configuring L2TP tunnels for dial-in clients
Configuration of the MAX as an LAC
An LAC is responsible for requesting L2TP tunnels to the LNS. You configure the LAC to
determine when a dial-in connection should be tunneled, and you can specify the LNS used for
the connection.
Understanding the L2TP LAC parameters
This section provides some background information about parameters used in configuring the
MAX as an LAC:
Parameter
L2TP Mode
L2TP Auth
Enabled
L2TP RX Window Specifies the number of unacknowledged packets the MAX receives
Line N Tunnel
Type
Route Line N
11-36
Ascend-Disconnect-Cause = 185
Ascend-Connect-Progress = 60
Ascend-Xmit-Rate = 28800
Ascend-Data-Rate = 33600
Ascend-PreSession-Time = 19
Ascend-Pre-Input-Octets = 0
Ascend-Pre-Output-Octets = 0
Ascend-Pre-Input-Packets = 0
Ascend-Pre-Output-Packets = 0
Ascend-Modem-PortNo = 1
Ascend-Modem-SlotNo = 7
Ascend-Modem-ShelfNo = 1
Caller-Id = "1119855510"
Client-Port-DNIS = "3826"
Tunnel-Type = L2TP
Tunnel-Server-Endpoint = "1.1.1.1"
Tunnel-Client-Auth-ID = "taos-unit"
Tunnel-Server-Auth-ID = "max6k-lns"
Tunnel-Assignment-ID = "modem-taid"
How it's used
Enables the MAX unit's LAC functionality if you set L2TP Mode to
LAC or Both.
You must either enable tunnel authentication for both the LAC and LNS
or enable it for neither. You configure a tunnel password in a
Names/Passwords profile.
(when configured as an LAC or a LNS) before requesting that the
sending device stop transmitting data.
Specifies whether the MAX should dedicate an entire WAN line to either
L2TP or PPTP. If you want the MAX to establish tunnels on a
connection-by-connection basis, set Line N Tunnel Type to None on all
lines.
Specifies the IP address of the LNS. This parameter applies only if you
dedicate an entire WAN line to tunneling with the Line N Tunnel Type
parameter. If you want the MAX to establish tunnels on a
connection-by-connection basis, leave Route Line N blank for all lines.
MAX 6000/3000 Network Configuration Guide
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