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BCM50a Integrated Router Configuration — Advanced
Appendix D
PPPoE
PPPoE in action
An ADSL modem bridges a PPP session over Ethernet (PPP over Ethernet, RFC
2516) from your PC to an ATM PVC (Permanent Virtual Circuit), which connects
to a DSL Access Concentrator where the PPP session terminates (see
Figure 132
).
One PVC can support any number of PPP sessions from your LAN. PPPoE
provides access control and billing functionality in a manner similar to dial-up
services using PPP.
Benefits of PPPoE
PPPoE offers the following benefits:
•
It provides you with a familiar dial-up networking (DUN) user interface.
•
It lessens the burden on the carriers of provisioning virtual circuits all the way
to the ISP on multiple switches for thousands of users. For GSTN (PSTN and
ISDN), the switching fabric is already in place.
•
It allows the ISP to use the existing dial-up model to authenticate and
(optionally) to provide differentiated services.
Traditional dial-up scenario
Figure 132
depicts a typical hardware configuration in which the PCs use
traditional dial-up networking.
Содержание BCM50a
Страница 18: ...18 Figures N0115791 ...
Страница 22: ...22 Tables N0115791 ...
Страница 28: ...28 Preface N0115791 ...
Страница 44: ...44 Chapter 2 Introducing the SMT N0115791 SMT menus at a glance Figure 6 SMT overview ...
Страница 52: ...52 Chapter 2 SMT menu 1 general setup N0115791 ...
Страница 64: ...64 Chapter 4 LAN setup N0115791 ...
Страница 68: ...68 Chapter 5 Internet access N0115791 ...
Страница 82: ...82 Chapter 6 Remote Node setup N0115791 ...
Страница 114: ...114 Chapter 9 Network Address Translation NAT N0115791 ...
Страница 140: ...140 Chapter 12 SNMP Configuration N0115791 ...
Страница 144: ...144 Chapter 13 System security N0115791 ...
Страница 160: ...160 Chapter 14 System information and diagnosis N0115791 ...
Страница 174: ...174 Chapter 15 Firmware and configuration file maintenance N0115791 ...
Страница 188: ...188 Chapter 17 Remote Management N0115791 ...
Страница 208: ...208 Appendix B Triangle Route N0115791 ...
Страница 228: ...228 Appendix D PPPoE N0115791 ...
Страница 230: ...230 Appendix E Hardware specifications N0115791 ...
Страница 240: ...240 Appendix F IP subnetting N0115791 ...
Страница 278: ...278 Appendix G Command Interpreter N0115791 ...
Страница 308: ...308 Appendix J Log descriptions N0115791 ...
Страница 310: ...310 Appendix K Brute force password guessing protection N0115791 ...