
Appendix E PPTP
255
Nortel Business Secure Router 222 Configuration — Advanced
PAC must have IP connectivity; however, the PAC must also have dial-up
capability. The phone call is between the user and the PAC and the PAC tunnels
the PPP frames to the PNS. The PPTP user is unaware of the tunnel between the
PAC and the PNS.
Figure 159
PPTP protocol overview
Microsoft includes PPTP as a part of the Windows OS. In Microsoft’s
implementation, the PC, and hence the Business Secure Router, is the PNS that
requests the PAC (the ANT) to place an outgoing call over AAL5 to an RFC 2364
server.
Control and PPP connections
Each PPTP session has distinct control connection and PPP data connection.
Call connection
The control connection runs over TCP. Similar to L2TP, a tunnel control
connection is first established before call control messages can be exchanged.
Note that a tunnel control connection supports multiple call sessions.
Figure 160
depicts the message exchange of a successful call setup between a PC
and an ANT.
Содержание 222
Страница 14: ...14 Contents NN47922 501 ...
Страница 24: ...24 Tables NN47922 501 ...
Страница 30: ...30 Preface NN47922 501 ...
Страница 46: ...46 Chapter 2 Introducing the SMT NN47922 501 SMT menus at a glance Figure 6 SMT overview ...
Страница 70: ...70 Chapter 3 WAN and Dial Backup Setup NN47922 501 ...
Страница 78: ...78 Chapter 4 LAN setup NN47922 501 ...
Страница 100: ...100 Chapter 6 Remote Node setup NN47922 501 ...
Страница 104: ...104 Chapter 7 IP Static Route Setup NN47922 501 ...
Страница 132: ...132 Chapter 9 Network Address Translation NAT NN47922 501 ...
Страница 154: ...154 Chapter 11 Filter configuration NN47922 501 ...
Страница 158: ...158 Chapter 12 SNMP Configuration NN47922 501 ...
Страница 198: ...198 Chapter 15 Firmware and configuration file maintenance NN47922 501 ...
Страница 212: ...212 Chapter 17 Remote Management NN47922 501 ...
Страница 232: ...232 Appendix B Triangle Route NN47922 501 ...
Страница 252: ...252 Appendix D PPPoE NN47922 501 ...
Страница 260: ...260 Appendix F Hardware specifications NN47922 501 ...
Страница 270: ...270 Appendix G IP subnetting NN47922 501 ...
Страница 308: ...308 Appendix H Command Interpreter NN47922 501 ...
Страница 312: ...312 Appendix I NetBIOS filter commands NN47922 501 ...
Страница 336: ...336 Appendix L Brute force password guessing protection NN47922 501 ...