Avaya Configuring and Troubleshooting Bay Dial VPN (DVS) Networks Instrukcja Użytkownika Pobierz pdf (Strona 63)

Dial VPN Layer 3 Tunneling

303509-A Rev 00 3-15

Figure 3-4. Packet Encapsulation and Decapsulation Process

Flag FlagAddress Control Protocol Data FCS

CRKSs T FlagControl Version Protocol

Type

Data Tunnel ID

Control

Opening

Flag

Closing

Flag

Address Information FCS Data

Remote annex

Remote node

Gateway

CPE Router

Data packet moves onto home network

PPP packet

GRE packet

Frame Relay packet

DVS0003

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 189 190

Configuring and 1
Troubleshooting Bay Dial 1
VPN Services 1
Trademarks 2
Restricted Rights Legend 2
Statement of Conditions 2
Contents 5
303509-A Rev 00 vii 7
303509-A Rev 00 ix 9
303509-A Rev 00 xi 11
303509-A Rev 00 13
Before You Begin 15
Text Conventions 15
Acronyms 17
How to Get Help 19
Chapter 1 21
Tunneling Overview 21
What Is Tunneling? 22
Layer 3 Tunneling 24
Layer 2 Tunneling 24
1-6 303509-A Rev 00 26
Dial VPN Network Components 27
1-8 303509-A Rev 00 28
1-10 303509-A Rev 00 30
1-12 303509-A Rev 00 32
Where to Go Next 34
Chapter 2 35
Dial VPN Layer 2 Tunneling 35
2-2 303509-A Rev 00 36
L2T0003A 36
303509-A Rev 00 2-3 37
L2TP Packet Encapsulation 38
2-6 303509-A Rev 00 40
Security in an L2TP Network 41
2-8 303509-A Rev 00 42
RADIUS User Authentication 43
RADIUS Accounting 44
L2TP IP Interface Addresses 44
Starting an L2TP Session 45
Examples of L2TP Tunnels 46
303509-A Rev 00 2-13 47
2-14 303509-A Rev 00 48
Chapter 3 49
Dial VPN Layer 3 Tunneling 49
3-2 303509-A Rev 00 50
303509-A Rev 00 3-3 51
How Tunnel Management Works 52
How the TMS Database Works 54
How DHCP Works 55
shows the entire process 56
Assigning Addresses 58
Starting the Connection 60
3-14 303509-A Rev 00 62
3-16 303509-A Rev 00 64
3-18 303509-A Rev 00 66
DVS0007A 66
Chapter 4 69
4-2 303509-A Rev 00 70
<acp_or_RADIUS> 71
stats -o 72
<called_number> 73
Configuring Active RIP 75
Chapter 5 77
Configuring TMS and Security 77
for erpcd Networks 77
5-2 303509-A Rev 00 78
303509-A Rev 00 5-3 79
Tunnel Management Commands 80
All commands except 81
Command Arguments 82
303509-A Rev 00 5-13 89
0013ABC0:001234560000 89
Chapter 6 91
6-2 303509-A Rev 00 92
303509-A Rev 00 6-3 93
DVS0015A 93
Using RADIUS Accounting 94
RADIUS server 95
Messages.” 99
Chapter 7 101
7-2 303509-A Rev 00 102
<slot_number> 103
Caution: 104
Gateway Accounting Messages 105
Chapter 8 107
8-2 303509-A Rev 00 108
DVS0008A 108
303509-A Rev 00 8-3 109
(continued) 110
303509-A Rev 00 8-7 113
8-8 303509-A Rev 00 114
303509-A Rev 00 8-9 115
Enabling L2TP 119
(continued) 123
Framed-IPX-Network 124
303509-A Rev 00 8-19 125
Creating a Superscope 127
Chapter 9 129
Managing a Dial VPN Network 129
9-2 303509-A Rev 00 130
Appendix A 131
Planning Worksheet 131
A-2 303509-A Rev 00 132
For Each Destination Site 133
For Each Remote Node 134
Appendix B 135
Syslog Messages 135
TMS Syslog Messages 138
Appendix C 145
Troubleshooting 145
Preventing Problems 146
Preparing to Troubleshoot 147
Troubleshooting Worksheet 148
303509-A Rev 00 C-5 149
Troubleshooting Routers 150
Cable Guide 150
C-8 303509-A Rev 00 152
303509-A Rev 00 C-11 155
C-12 303509-A Rev 00 156
303509-A Rev 00 C-13 157
C-14 303509-A Rev 00 158
Managing 163
Remote Access Concentrators 163
Using Command Line Interfaces 163
Managing Remote 165
Access Concentrators Using 165
Command Line Interfaces 165
C-22 303509-A Rev 00 166
DVS0005A 167
C-24 303509-A Rev 00 168
Troubleshooting the LAC 169
Troubleshooting the LNS 170
C-32 303509-A Rev 00 176
Glossary 177
Glossary-6 303509-A Rev 00 182
Tunnel Management 182
System (TMS) 182
Virtual Private 182
Network (VPN) 182

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