MRV Communications LX-4000 Series Technical Information Seite 461
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Configuring PPP
PPP Backup 16-15
PPP Backup
PPP Backup allows an LX to dial a “backup” PPP connection if
contact to a given host is lost. The PPP connection is enabled as
a dial-on-demand, and thus is only active as needed. The PPP
backup system uses the trigger-action-rule subsystem to detect
when contact to the ping host is lost, and then activate the dial-
on-demand service.
Figure 16.5 PPP Dial Backup Diagram
PPP backup becomes a Demand Circuit when LX B can’t ping its
ping host 10.242.131.8 because the primary path is down. The
connection will not dial unless traffic is destined for a device
across the PPP link.
- LX Series 1
- Configuration Guide 1
- System Administration 6
- Configuring IP Interfaces 8
- Control Feature 11
- SNMP Configuration 12
- Manager and LDAM 13
- Configuring PPP 14
- Internal Modem 14
- PART 3 Additional Information 15
- LX-Series Configuration Guide 18
- About This Book 19
- Conventions 21
- Online Help 21
- Additional Help 23
- menu open d<tab> 24
- menu open demo_menu 24
- Before You Configure 25
- Using the Command-Line 26
- Interface 26
- Figure 1.1 LX Command Modes 27
- About Command Modes 28
- Configuration 29
- Command Mode 29
- Superuser command mode 29
- Command Mode Descriptions 30
- Using the Function Keys 41
- Performing the Initial Setup 42
- Configuring TCP/IP 43
- Intf 1-1:0>>dhcp renew 47
- IP Configuration Menu 49
- Subs_InReach >> 52
- Subs_InReach >>password 52
- Config:0 >> prompt: 52
- Config:0 >>password 52
- Setting Up LDAP 53
- Network-based Host 55
- 143.34.87.93 56
- Using an LDAP 57
- LDAP Command Examples 58
- LDAP Local Subscriber Feature 59
- The LX listens to 62
- RADIUS Command Examples 63
- Specifying the RADIUS Period 65
- Setting Up TACACS+ 66
- The LX listens 68
- TACACS+ Command Examples 72
- 182.36.98.33 72
- 182.57.32.58 73
- Specifying the TACACS+ Period 74
- Setting Up RSA SecurID 74
- address 149.19.87.89 76
- RSA SecurID Command Examples 77
- RSA SecurID sdconf.rec File 80
- 1. Go to the shell 80
- Setting Up KerberosV5 81
- Syslog Overview 89
- Assigning an Asset Tag 90
- Assigning a Contact 91
- Setting Up Remote 92
- Network Element 93
- Connectors 94
- Straight Through Cable 94
- Management 95
- Configuring Modem Caller ID 98
- 1. Test the port async port: 105
- LX Series Configuration Guide 107
- Console Management 108
- Specifying Access Methods 109
- Connect Port Escape Character 110
- System Administration 112
- Backup and Recovery 113
- Editing the Files in Windows 115
- <ipv6_ 118
- <ip_address> 118
- Other Units 119
- Configuring SFTP 120
- Configuring Telnet Server 123
- Scripting On External Units 124
- Upgrading the Software 124
- LX Series 127
- Command Reference 127
- Main Menu 128
- Booting from the Network 129
- Ethernet Network Link 132
- IMPORTANT! 133
- EM316LX Configuration Menu 134
- Resetting System Defaults 136
- Saving the Configuration 136
- Booting the System 137
- Changing the Unit IP Address 139
- Changing the Network Mask 140
- Changing the Gateway Address 140
- Restarting the Module 142
- Enabling the Management Port 142
- Configuring Image Names 144
- Defaulting Image Names 144
- IMPORTANT 145
- Booting from Defaults 149
- Defaulting from CLI 150
- System and Status Screens 154
- Configuring the 156
- LX Series Unit 156
- Setting Up the 157
- Notification Feature 157
- Profile of the TAP type 158
- Creating Service Profiles 159
- 4. Use the 163
- 1. Execute the 163
- External Modem Settings 165
- Overview of User Profiles 170
- 5. Use the 171
- 6. Use the 171
- All text 172
- Configuration Examples 173
- There are 174
- Localsyslog Example 175
- Remotesyslog Example 175
- SNPP Example 176
- Email Example 177
- TAP Example 178
- SNMP Example 179
- SSHD and DNS 180
- Configuring IP Interfaces 181
- Examples 182
- LX Series Command Reference 183
- Setting Up IP Interfaces 184
- Re-Using IP Addresses 185
- Specifying Socket Numbers 186
- IP Interface 188
- Interface Command Mode: 190
- Configuring a Rotary 191
- Removing Ports from a Rotary 194
- Disabling a Rotary 194
- Telnet Client 199
- Setting the Banner 200
- Message of the Day Commands 201
- Data Broadcast Feature 203
- Setting Up Broadcast Groups 204
- Guidelines for Adding Ports 205
- Specifying Port Options 206
- Configuring 211
- Subscriber Accounts 211
- Default Template 212
- Subscriber Account Settings 216
- Dialback Access 221
- InReach:0 >> 227
- Specifying Escape Characters 228
- Specifying a Security Level 230
- Enabling Audit Logging 230
- Enabling Command Logging 231
- Enabling the Menu Feature 231
- Generating the SSH Key 239
- Configuring Async 241
- Port Features 241
- Displaying Sensor Summaries 243
- Configuring the IdleBuffer 244
- Data Buffering 248
- <port> 250
- RS-485 CLI Support 251
- Default TCP Transmit Mode 254
- Port Mirroring 255
- <port_list> readonly 256
- <subscriber_name> 258
- Port Async Connect 260
- DSR Wait 269
- Configuring Power 271
- Control Units 271
- Default Name for an Outlet 273
- Specifying the Off Time 274
- Naming an Outlet 275
- Naming an Outlet Group 275
- 5. To logout, enter: 278
- 4800 Features 279
- 5250/5150/4800 280
- 1. Create a Power port: 282
- Enabling SCP 284
- 5250 POWER port 286
- 5150 POWER port 287
- 4800 POWER port 288
- Trigger-Action Feature 291
- To create a(n)... See 292
- Greenwich Time Display 293
- Disabling Rules 308
- You must 309
- 11-22 Disabling Rules 312
- Configuring iptables 313
- IP Firewall 314
- IP Firewall 12-3 315
- 12-4 IP Firewall 316
- KandL) arrows on 317
- 2. Click New. The 318
- 3. Fill in all required 318
- 4. Enter the desired 318
- 1. Select one entry 320
- 2. Modify the 320
- 3. Click on Commit 320
- Updating the Firewall 321
- Example Config:0 >> 322
- L You can use the 326
- Configuring the Cluster 327
- Configuration and 327
- What is a Cluster? 328
- How the Protocol Works 329
- Creating a Cluster Secret 331
- Cluster Secret: 332
- Enter>. The 332
- Within the Cluster 335
- Updating the Software 339
- Updating the ppciboot 340
- User Console window 343
- 123.456.789.40 344
- 123.456.789.48 344
- 123.456.789.49 344
- Sharing and Unsharing the 349
- Authenticate Image 349
- unshare telnet client 351
- GUI Cluster 353
- Cluster Automatic Discovery 355
- Cluster Automatic Setup 359
- SNMP Configuration 361
- Network Management System 362
- Management Information 363
- OID Structure Example 364
- 14-6 OID Structure Example 366
- Security 368
- SNMP Management 368
- SNMP V3 Overview 375
- SNMP V3 Commands 377
- Displaying SNMP Information 382
- Show the SNMP V3 Settings 384
- Dual Power Supply SNMP Traps 388
- SNMP MIB Support 388
- References 388
- Configuring Alarming with 389
- LX-7204T/7304T Sensor 389
- Configuring the HDAM Port 390
- Updating the LX-7204T/7304T 390
- Firmware 390
- 28 update ipv6 391
- Naming Alarm Inputs 392
- State Changes 397
- [open 400
- > 403
- Naming Control Outputs 404
- Naming Analog Inputs 412
- > 414
- Displaying HDAM Information 420
- Description: 422
- Configuring the LDAM Port 429
- Displaying LDAM Information 441
- Configuring PPP 447
- Inactivity Timeout 450
- CCP Negotiation 450
- IPCP Accept Address 451
- IPCP Compression 451
- LCP Compression 453
- LCP Echo Failure 453
- LCP Echo Interval 454
- LCP Failure Limit 454
- LCP Timeout 454
- PPP Routing on the LX 455
- Router X 459
- PPP Backup 461
- 16-16 PPP Backup 462
- PPP Dialback 465
- 16-20 PPP Dialback 466
- RSA SecurID PPP Fallback 467
- Sample Configuration 468
- Special PPP-Local, you must 469
- Configuring Redundant 471
- Ethernet 471
- Redundant Ethernet 472
- Switch A 473
- Switch B 473
- 1. Create the interface: 474
- Bonding Link 475
- Bonding Link ARP Address 475
- Bonding Link ARP Interval 476
- Defaulting the Binding 477
- 2. Save the configuration 477
- 3. Perform reboot 477
- Internal Modem 479
- Dial-Out 480
- Viewing Internal Modem 482
- Characteristics 482
- Alarm Input/Control 483
- Output Points 483
- Configuring Control Output 484
- Configuring Alarm Inputs via 487
- Trigger Action Rules 487
- 7. Enable the Rules: 489
- LX Signal Notice Ease-of-Use 490
- 4. Select Signal Notify 492
- 5. Click OK or Apply to 492
- Configuring IPv6 493
- Scope-Global Addressing 494
- Scope-Local Addressing 494
- 6to4 Tunneling 494
- Viewing IPv6 Status 504
- Viewing the IPv6 NTP Address 505
- Viewing IPv6 Routes 506
- IPv6 Additions to Ping, SSH 509
- Web Browser Support for IPv6 510
- Additional Information 511
- RADIUS Authentication 512
- RADIUS Authentication Process 513
- Table A.1 Supported RADIUS 516
- RADIUS Access Request Packet 518
- Service Type 518
- About RADIUS and 520
- TACACS+ Accounting 520
- RADIUS Accounting Attributes 522
- TACACS+ Accounting Attributes 524
- TACACS+ Authentication and 526
- Authorization 526
- TACACS+ Server 528
- Auto Command 529
- Privilege Level 530
- C-6 Privilege Level 531
- Linux Man Pages for 532
- Commands 532
- Advanced Features 568
- Multi-Level Command Execution 569
- Multi-Level Commands 570
- The target command 571
- Multi-Level Commands Examples 572
- Enabling and Disabling 574
- TCP and IR Listener Ports 574
- Open Ports on the LX 575
- RADIUS Vendor 578
- Dictionary Files 578
- Configuring rlogin Support 586
- UNIX Host 587
- Local Network 587
- Remote Network 587
- Considerations 588
- FIPS 140-2 Support 592
- FIPS 140-2 Standard 593
- Prerequisites 594
- Notes and Restrictions 594
- 1. Log into the CLI 596
- Feature Impact Reason 601
- Upgrading Software 603
- Module Name 604
- NTP Client Overview 606
- How NTP Works 607
- J-4 How NTP Works 609
- Using Nested Menus 610
- About the Nested Menu Feature 611
- Creating the Menu File 614
- Command Description 615
- %menu_file 616
- %menu_start n header 616
- %menu_wait 617
- %menu_noprompt 617
- %menu_eof 618
- %menu_prompt prompt-text 618
- %menu_top x text-string 618
- %menu_up x text-string 618
- %menu_logout x text-string 619
- %menu_repaint x text-string 619
- General Guidelines 620
- Debugging the Menu File 620
- Sample File 2 624
- K-16 Sample File 2 625
- Sample File 2 K-17 626
- K-18 Sample File 2 627
- Sample File 2 K-19 628
- K-20 Sample File 2 629
- Using LXPORTD 630
- About LXPORTD 631
- LXPORTD man Pages 631
- Applications Examples 635
- Advanced LXPORTD Application 637
- Using LPD 642
- Semicolons Embedded 654
- LDAP Version 3 Environment 656
- Setup and Troubleshooting 656
- Sample Slapd.conf File 658
- TLSVerifyClient never 659
- 22 List of Procedures 683
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