HP MSR Router Series User Manual

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This feature takes effect on both sent and received L2TP data messages. The L2TP sessions support this
feature if either the LAC or LNS is enabled with this feature.
To enable session flow control:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter L2TP group view.
l2tp-group group-number [ mode { lac
| lns } ]
N/A
3. Enable the session flow
control feature.
tunnel flow-control By default, this feature is disabled.
Setting the DSCP value of L2TP packets
The DSCP field is the first 6 bits of the IP ToS byte. This field marks the priority of IP packets for forwarding.
This feature sets the DSCP value for the IP packet when L2TP encapsulates a PPP frame into an IP packet.
To set the DSCP value of L2TP packets:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter L2TP group view.
l2tp-group group-number [ mode { lac
| lns } ]
N/A
3. Set the DSCP value of L2TP
packets.
ip dscp dscp-value The default setting is 0.
Assigning a tunnel peer to a VPN
By default, the device transmits L2TP control messages and data messages over the public network. With
this feature, the device transmits them in a specific VPN by searching the routing table in that specified
VPN.
When one L2TP endpoint is in a VPN, assign the peer endpoint to the VPN for correct packet forwarding
between the two endpoints.
To configure the VPN for a tunnel peer:
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enter L2TP group view.
l2tp-group group-number [ mode { lac
| lns } ]
N/A

HP MSR Router Series Specifications

General

Product Series	MSR
Category	Network Router
IPv6 Support	Yes
WAN Interfaces	Varies by model (e.g., Gigabit Ethernet, Serial, T1/E1)
LAN Interfaces	Varies by model (e.g., Fast Ethernet, Gigabit Ethernet)
VPN Support	Yes (IPSec, L2TP, GRE)
QoS Support	Yes (Priority queuing, traffic shaping)
Redundancy	Varies by model (e.g., VRRP, dual power supplies)
Management	CLI, Web GUI, SNMP
Firewall	Yes (Stateful firewall, NAT)

Summary

Configuring PPP and MP

PPP authentication

Details on supported PPP authentication methods: PAP, CHAP, MS-CHAP, and MS-CHAP-V2.

PPP for IPv4

PPP for IPv6

Configuring PPP

Tasks for configuring PPP, including encapsulation, authentication, negotiation, and compression.

Configuring MP

Tasks for configuring Multilink PPP (MP) using VT or MP-group interfaces.

PPP and MP configuration examples

Practical examples for configuring PPP and MP, including authentication and IP address negotiation.

Configuring PPPoE

Configuring the PPPoE server

Configuration tasks for setting up the PPPoE server.

Configuring a PPPoE client

Configuration tasks for setting up the PPPoE client.

PPPoE configuration examples

Practical examples for configuring PPPoE server and client scenarios.

Configuring L2TP

L2TP configuration task list

Configuring basic L2TP capabilities

Basic L2TP capability configuration, including enabling L2TP and creating L2TP groups.

Configuring an LAC

Tasks for configuring an LAC to initiate tunneling requests and specify LNS IP addresses.

Configuring an LNS

Tasks for configuring an LNS to accept tunneling requests and manage VA interfaces.

L2TP configuration examples

Practical examples for configuring L2TP tunnels (NAS, client, LAC-auto-initiated).

Troubleshooting L2TP

Configuring HDLC

Enabling HDLC encapsulation on an interface

Steps to enable HDLC encapsulation on an interface.

HDLC configuration example

Configuring HDLC link bundling

Configuring an HDLC link bundle interface

Steps to configure an HDLC link bundle interface.

Assigning an interface to an HDLC link bundle

Procedure for assigning interfaces to an HDLC link bundle.

HDLC link bundling configuration example

Configuring ISDN

ISDN configuration task list

Setting the ISDN switch type on an ISDN interface

Procedure to set the ISDN switch type on an interface.

Setting the ISDN functionality of an ISDN interface

Procedure to configure the ISDN interface as user-side or network-side.

Configuring Q.931 negotiation parameters

Configuring Q.931 call control parameters

Configuring the Q.921 operating parameters

Configuring the sliding window size on an ISDN BRI interface

ISDN configuration examples

Configuring ATM

ATM configuration task list

Configuring an ATM interface

Procedure to configure ATM interfaces.

Configuring a PVC

Procedure to configure a Permanent Virtual Circuit (PVC).

Configuring PPPoA

Procedure to enable PVC/PVC-group to carry PPP and configure PPPoA mapping.

Configuring PPPoEoA

Procedure to enable PVC/PVC-group to carry PPPoE and configure PPPoEoA mapping.

Configuring VP policing

ATM configuration examples