Zyxel VES-1624FT-55A [226/312] Pppoe intermediate agent screen

Chapter 41 PPPoE Intermediate Agent

VES-1624FT-55A User’s Guide

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41.1.0.2 TR-101 Format

The PPPoE Intermediate Agent sub-option includes the system name or IP address, slot ID,

port number, VPI, and VCI on which the TCP/IP configuration request was received.

The following figure shows the format of the TR-101 PPPoE Intermediate Agent sub-option.

The 1 in the first field identifies this as an Agent Circuit ID sub-option. The next field specifies

the length of the field. The hostname field displays the system name, if it has been configured,

the extra information field (A) if the hostname was not configured, or the IP address in dotted

decimal notation (w.x.y.z), if neither the system name nor the extra information field was been

configured. In either case, the hostname is truncated to 23 characters, and trailing spaces are

discarded. The hostname field is followed by a space, the string “atm”, and another space.

Then, a 1-byte Slot ID field specifies the ingress slot number, and a 1-byte Port No field

specifies the ingress port number. Next, the VPI and VCI denote the virtual circuit that

received the PPPoE message from the subscriber.

The slot ID, port number, VPI, VCI are separated from each other by a forward slash (/) colon

(:) or period (.). An example is “SYSNAME atm 0/10:0.33”.

Unlike the private format for PPPoE intermediate agent, the TR-101 format for PPPoE

intermediate agent does not include the Remote ID Sub-option.

41.2 PPPoE Intermediate Agent Screen

Use this screen to configure the IP DSLAM to give a PPPoE termination server additional

information that the server can use to identify and authenticate a PPPoE client.

To open this screen, click Advanced Application > PPPoE Intermediate Agent.

Figure 123 PPPoE Intermediate Agent

Table 88 PPPoE Intermediate Agent Sub-option Format: TR-101 for VDSL

1Nhostname / A / IP “ eth “ Slot ID / Port No.

Table 89 PPPoE Intermediate Agent Sub-option Format: TR-101 for ADSL

1Nhostname / A / IP “ atm “ Slot ID / Port No. : VPI . VCI