Avaya Configuring and Troubleshooting Bay Dial VPN (DVS) Networks Manual de usuario Pagina 36

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Configuring and Troubleshooting Bay Dial VPN Services
2-2 302272-A Rev. 00
Figure 2-1. Layer 2 Tunnel Packet Path
Building a Network for Layer 2 Tunneling
The steps that follow provide a suggested order for configuring your network for
Dial VPN Layer 2 tunneling. For detailed information about each of these steps,
see Chapters 4 through 10.
1.
At the ISP network, configure the following:
Remote Access Concentrator, serving as the L2TP access concentrator
(LAC)
Tunnel management server (TMS) on the erpcd server for the erpcd-based
solution
Access Control Protocol (ACP) server (only for the erpcd-based solution)
Edge router capable of connecting to the LNS on the customers home
network with frame relay or PPP
Note:
If the dial-in node is configured with an L2TP client, that client serves
as the LAC, and the RAC serves the function of a normal network access
server. In this guide, most of the descriptions use the Remote Access
Concentrator as the LAC for Layer 2 tunnels.
Tunnel
PPP
connection
Remote
host
ISP network
Frame relay
connection
Corporate network
No L2TP
functionality
TMS
Data
LAC
LNS
RADIUS
server
L2T0003A
PC
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