Avaya Bay Dial VPN Networks Bedienungsanleitung Seite 172
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Configuring and Troubleshooting Bay Dial VPN Services
C-20
308606-14.00 Rev 00
Remote Access
Concentrator does not
advertise updates.
(
continued
)
6. If your network is divided into
subnets, the IP subnet addresses
and subnet masks may not be set
correctly for the RAC and the SLIP
and PPP ports.
Verify the configured IP subnet
addresses and subnet masks for the
RAC and the SLIP and PPP ports.
7. If your network is divided into
subnets, the subnet routes may not
be correctly advertised if the
interface parameter
rip_sub_advertise
is set to
N
.
Verify that the
rip_sub_advertise
parameter is set to
Y
(the default).
8. Is
rip_horizon
set to
split
? If so,
there may not be any routes to
advertise on that interface.
Verify the setting of the
rip_horizon
parameter. Refer to the description of
split horizon and poison reverse in
Managing Remote Access
Concentrators Using Command Line
Interfaces
.
9. RIP packets may be being filtered
out. For example, a filter that
discards outgoing UDP packets
also discards RIP packets, since
RIP runs on UDP.
To list all the defined filters, enter the
following CLI superuser commands:
annex:
su
password:
annex#
filter list
Refer to the description of filtering in
Managing Remote Access
Concentrators Using Command Line
Interfaces
.
10.Your hosts may be ignoring RIP
Version 2 updates.
Verify that the interface parameter
rip_send_version
is set to 1. Also
verify that the gateway is configured to
recognize and send RIP Version 2
updates.
(continued)
Table C-2. Remote Access Concentrator Troubleshooting Chart
(continued)
Problem/Symptom Possible Cause Action
- Configuring and 1
- Troubleshooting Bay Dial 1
- VPN Services 1
- Restricted Rights Legend 2
- Statement of Conditions 2
- Contents 5
- 308606-14.00 Rev 00 10
- Before You Begin 15
- Text Conventions 16
- Acronyms 17
- Hard-Copy Technical Manuals 19
- How to Get Help 20
- Chapter 1 21
- Tunneling Overview 21
- What Is Tunneling? 22
- Layer 3 Tunneling 24
- Layer 2 Tunneling 24
- DVS0012A 26
- Dial VPN Network Components 27
- Where to Go Next 34
- Chapter 2 35
- Dial VPN Layer 2 Tunneling 35
- L2TP Packet Encapsulation 38
- Security in an L2TP Network 41
- RADIUS User Authentication 43
- RADIUS Accounting 44
- L2TP IP Interface Addresses 44
- Starting an L2TP Session 45
- Examples of L2TP Tunnels 46
- Chapter 3 49
- Dial VPN Layer 3 Tunneling 49
- How Tunnel Management Works 53
- How the TMS Database Works 54
- How DHCP Works 56
- Assigning Addresses 59
- DVS0018A 60
- Using Secondary Gateways 61
- Using a Backup Gateway 63
- Using Load Distribution 63
- Starting the Connection 64
- Chapter 4 73
- <acp_or_RADIUS> 75
- stats -o command 76
- <called_number> 77
- Configuring Active RIP 79
- Chapter 5 81
- Tunnel Management Commands 84
- Command Arguments 86
- 0013ABC0:001234560000 93
- Chapter 6 95
- Using RADIUS Accounting 98
- RADIUS server 100
- (continued) 104
- (continued) 105
- Chapter 7 111
- Configuring Layer 3 Gateways 111
- <slot_number> 113
- Gateway Accounting Messages 115
- Chapter 8 117
- Enabling L2TP 129
- field, which by 135
- Creating a Superscope 137
- Chapter 9 139
- Managing a Dial VPN Network 139
- Appendix A 141
- Planning Worksheet 141
- For Each Destination Site 143
- For Each Remote Node 144
- Appendix B 145
- Syslog Messages 145
- TMS Syslog Messages 147
- Appendix C 153
- Troubleshooting 153
- Preventing Problems 154
- Preparing to Troubleshoot 155
- Troubleshooting Worksheet 156
- Troubleshooting Routers 158
- Cable Guide 158
- Caution: Avoid using the 161
- Caution: 162
- Managing 171
- Remote Access Concentrators 171
- Using Command Line Interfaces 171
- Managing Remote 173
- Access Concentrators Using 173
- Command Line Interfaces 173
- DVS0005A 175
- Troubleshooting the LAC 177
- Troubleshooting the LNS 178
- Appendix D 185
- Tips and Techniques 185
- Configuration 188
- Glossary 193
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