Understanding The L2Tp Lac Parameters - Lucent Technologies MAX 6000 Configuration Manual

Setting Up Virtual Private Networks
Configuring L2TP tunnels for dial-in clients

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
Configuring the MAX
To configure the MAX as an L2TP LAC, you must first enable L2TP LAC on the MAX, then
specify how the MAX determines which connections are tunneled.
Configuring systemwide L2TP LAC parameters
To configure systemwide L2TP LAC parameters on the MAX:
1
2
3
4
10-34
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.
Open the Ethernet > Mod Config > L2 Tunneling Options menu.
Set L2TP Mode to LAC or to Both.
If you require tunnel authentication, set L2TP Auth Enabled to Yes.
You must configure both the LAC and LNS identically, to either require or not require
authentication.
Set L2TP RX Window to the number of packets that the MAX should receive before it
requests that the sending device stop transmitting packets.
The default is seven. Set the parameter to 0 (zero) to disable flow control in the receiving
direction. The MAX continues to perform flow control for the sending direction regardless
of the value of L2TP RX Window.
MAX 6000/3000 Network Configuration Guide