259
Step Command
Remarks
3.
Configure the LAC to initiate
tunneling requests for a user.
user
{
domain
domain-name
|
fullusername
user-name
}
By default, an LAC does not
initiate tunneling requests for any
users.
Specifying LNS IP addresses
You can specify up to five LNS IP addresses. The LAC initiates an L2TP tunneling request to its
specified LNSs consecutively in their configuration order until it receives an acknowledgment from
an LNS. That LNS then becomes the tunnel peer.
To specify LNS IP addresses:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter L2TP group view in
LAC mode.
l2tp-group
group-number
[
mode
lac
]
N/A
3.
Specify LNS IP addresses.
lns-ip
{
ip-address
}&<1-5>
By default, no LNS IP addresses
are specified.
Configuring the source IP address of L2TP tunnel packets
For high availability, as a best practice, use the IP address of a loopback interface as the source IP
address of L2TP tunnel packets on the LAC. If equal cost routing paths exist between the LAC and
LNS, you must use the IP address of a loopback interface as the source IP address of L2TP tunnel
packets. To do so, use the
source-ip
command or use the RADIUS server to assign a loopback
interface address.
To configure the source IP address of L2TP tunnel packets:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter L2TP group view in
LAC mode.
l2tp-group
group-number
[
mode
lac
]
N/A
3.
Configure the source IP
address of L2TP tunnel
packets.
source-ip
ip-address
By default, the source IP address
of L2TP tunnel packets is the IP
address of the egress interface.
Configuring each L2TP user to use an L2TP tunnel
exclusively
By default, an L2TP tunnel can be used by multiple L2TP users. After this feature is configured for a
L2TP group, each L2TP user in the group uses an L2TP tunnel exclusively.
Only LACs support this feature.
To configure each L2TP user to use an L2TP tunnel exclusively:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
