DescriptionRequired Information
An initial address and a subnet, or a starting address
and an ending address, are required for each
configured pool. The pool will then consist of every
possible address within the subnet, or all addresses
from the starting address to the ending address.
The pool can be configured as public, private, or static.
IP pool addresses
How This Configuration Works
The following figure and the text that follows describe how this LNS service configuration with a single
source and destination context would be used by the system to terminate an L2TP tunnel.
Figure 2: Call Processing Using a Single Source and Destination Context
1. An L2TP tunnel request from a peer LAC is received by the LNS service. The tunnel is to facilitate a
subscriber session.
2. The LAC and LNS establish the L2TP tunnel according to the procedures defined in RFC 2661.
Once the L2TP tunnel is established, subscriber L2TP sessions can be established.
3. The LNS service determines which context to use in providing AAA functionality for the subscriber
session if authentication is enabled for the LNS service. For more information on this process, refer How
the System Selects Contexts in System Administration Guide.
For this example, the result of this process is that LNS service determined that AAA functionality should
be provided by the Source context.
4. The system communicates with the AAA server specified in the Source context's AAA configuration to
authenticate the subscriber.
L2TP Network Server
9
L2TP Network Server
How This Configuration Works
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