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Chapter 4 Access Control List Screens
Management Switch Card User’s Guide
83
This section describes how the MSC gives a PPPoE termination server additional information that
the server can use to identify and authenticate a PPPoE client.
If the PPPoE Intermediate Agent is enabled, the MSC adds a vendor-specific tag to PADI (PPPoE
Active Discovery Initialization) and PADR (PPPoE Active Discovery Request) packets from PPPoE
clients. This tag is defined in RFC 2516 and has the following format for this feature.
The Tag_Type is 0x0105 for vendor-specific tags, as defined in RFC 2516. The Tag_Len indicates the
length of Value, i1 and i2. The Value is the 32-bit number 0x00000DE9, which stands for the “ADSL
Forum” IANA entry. i1 and i2 are PPPoE intermediate agent sub-options, which contain additional
information about the PPPoE client. The MSC supports two formats for the PPPoE intermediate
agent sub-options: private and TR-101.
4.1.4.1 Private Format
There are two types of sub-option: “Agent Circuit ID Sub-option” and “Agent Remote ID Sub-
option”. They have the following formats.
The MSC adds the slot ID of the PPPoE client, the port number of the PPPoE client, the VLAN ID on
the PPPoE packet, and any extra information (for example, the device name) into the Agent Circuit
ID Sub-option. In addition, the MSC puts the PPPoE client’s MAC address into the Agent Remote ID
Sub-option. The slot ID is zero, if this value is not applicable. If the MSC adds extra information, it
does not append a trailing 0x00 (00h).
4.1.4.2 TR-101 Format
This format is the same as the TR-101 format for DHCP relay option 82; see
for more information.
Unlike the private format for PPPoE intermediate agent, the TR-101 format for PPPoE intermediate
agent does not include the Remote ID Sub-option.
Table 13
PPPoE Intermediate Agent Vendor-specific Tag Format
Tag_Type
(0x0105)
Tag_Len
Value
i1
i2
Table 14
PPPoE Intermediate Agent Vendor-specific Tag Format
SubOpt
(0x01)
Length
Slot ID
(1 byte)
Port No
(1 byte)
VLAN ID
(2 bytes)
Extra Information
(0~23 bytes)
Table 15
PPPoE Intermediate Agent Remote ID Sub-option Format
SubOpt
(0x02)
Length
MAC
(6 bytes)
Summary of Contents for MSC1000G Series
Page 38: ...Table of Contents Management Switch Card User s Guide 38...
Page 39: ...39 PART I Introduction...
Page 40: ...40...
Page 54: ...Chapter 1 Getting to Know Your MSC Management Switch Card User s Guide 54...
Page 61: ...61 PART II Web Configurator...
Page 62: ...62...
Page 80: ...Chapter 3 The Web Configurator Management Switch Card User s Guide 80...
Page 162: ...Chapter 5 Alarm Screens Management Switch Card User s Guide 162...
Page 178: ...Chapter 6 Diagnostic Screens Management Switch Card User s Guide 178...
Page 184: ...Chapter 7 Maintenance Screens Management Switch Card User s Guide 184...
Page 204: ...Chapter 8 Multicast Screens Management Switch Card User s Guide 204...
Page 226: ...Chapter 9 Subscriber Port Setup Screens Management Switch Card User s Guide 226...
Page 227: ...Chapter 9 Subscriber Port Setup Screens Management Switch Card User s Guide 227...
Page 330: ...Chapter 10 IMA Screens Management Switch Card User s Guide 330...
Page 412: ...Chapter 11 Profile Screens Management Switch Card User s Guide 412...
Page 512: ...Chapter 12 Statistics Screens Management Switch Card User s Guide 512...
Page 560: ...Chapter 13 Switch Screens Management Switch Card User s Guide 560...
Page 598: ...Chapter 15 VLAN Screens Management Switch Card User s Guide 598...
Page 636: ...Chapter 16 VoIP Management Switch Card User s Guide 636...
Page 638: ...Chapter 17 Config Save Management Switch Card User s Guide 638...
Page 639: ...639 PART III Commands...
Page 640: ...640...
Page 646: ...Chapter 18 Commands Management Switch Card User s Guide 646...
Page 682: ...Chapter 19 acl Commands Management Switch Card User s Guide 682...
Page 690: ...Chapter 20 alarm Commands Management Switch Card User s Guide 690...
Page 696: ...Chapter 22 config Commands Management Switch Card User s Guide 696...
Page 754: ...Chapter 28 multicast Commands Management Switch Card User s Guide 754...
Page 840: ...Chapter 29 port Commands Management Switch Card User s Guide 840...
Page 924: ...Chapter 30 profile Commands Management Switch Card User s Guide 924...
Page 926: ...Chapter 31 redundant Commands Management Switch Card User s Guide 926...
Page 1062: ...Chapter 35 vlan Commands Management Switch Card User s Guide 1062...
Page 1103: ...1103 PART IV Troubleshooting Specifications Appendices and Index...
Page 1104: ...1104...
Page 1134: ...Chapter 39 Product Specifications Management Switch Card User s Guide 1134...
Page 1146: ...Appendix B Legal Information Management Switch Card User s Guide 1146...