OLT LTP-16N, LTP-16NT. User Manual
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4.8 PPPoE configuration
4.8.1 Introduction
This section describes the procedure for operating the terminal with the PPPoE. The operation of the protocol
can be divided into two blocks:
PPPoE snooping. Used to intercept PPPoE traffic, control and monitor PPPoE sessions.
PPPoE intermediate agent. Functionality for inserting service information into PPPoE packets.
4.8.2
PPPoE snooping
This functionality is used to intercept and process traffic on the terminal CPU.
Currently, this functionality must be enabled if you want to control and monitor PPPoE sessions and to operate
with option 82 in packets.
4.8.2.1
PPPoE snooping enabling
Step 1.
The global
snooping
configuration is performed in the
ip pppoe view
, which in turn is in the
configure view
.
LTP-16N# configure terminal
LTP-16N(configure)# ip pppoe
LTP-16N(config)(pppoe)#
Step 2.
Enable PPPoE snooping using the
snooping enable
command.
LTP-16N(config)(pppoe)# snooping enable
4.8.3
PPPoE intermediate agent
PPPoE Intermediate Agent is used to provide BRAS with additional information about a received PADI request.
This may include information about the terminal running PPPoE Intermediate Agent as well as information
about the ONT, which sent the PADI request. PADI packets are modified by interception and further processing
in the terminal CPU.
BRAS analyses the Vendor Specific tag and identifies the ONT. PPPoE Intermediate Agent forms or rewrites
the Vendor Specific tag using a specified format. Vendor Specific tags are especially useful for networks,
which have no private VLANs dedicated for each user. PPPoE Intermediate Agent supports configurable
formats for Circuit ID and Remote ID. The format of the suboptions is configured with the help of the tokens
listed in Table 16. The placeholders will be replaced with corresponding values, while the rest of the words will
be passed as is.
Table 16 – List of tokens to configure the PPPoE Intermediate Agent suboption format
Token
Description
%HOSTNAME%
Terminal network name
%MNGIP%
Terminal IP address