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BSGX4e Business Gateway User Guide 173
Release 01.01 NN47928-102
VPN Configuration
If NAT is enabled, the processes work as below:
Figure 6 VPN operations when NAT is enabled
You must understand how traffic is flowing through the unit to understand how
traffic is encrypted. Figure 7 shows this flow.
Figure 7 Flow types
Outgoing
Packet
(private
domain)
Apply Normal-NAT
Or Drop as
appropriate
Apply
outbound
Normal-NAT
no
yes
Forward
IPsec pkt
Does the packet go
out a VPN interface
(routing table)?
Operation of Tunnel-Mode IPsec on outgoing packets
Operation of Tunnel-Mode IPsec on incoming packets
Peform
Outbound
Security
(tunnel mode)
IPSec pkt
coming in
a VPN itf
Perform
inbound
security
(detunnel)
Perform
inbound
Normal-NAT
Does the
packet
match a route
Forward
Firewall
rules
Allow
Deny
Internal
host
ICAD40 routing engineLAN WAN
Internal host traffic
Routed traffic
Relayed traffic
- Business Gateway 1
- Trademarks 2
- Hardware Notice 2
- ABOUT THIS GUIDE 3
- CONNECTING TO THE DEVICE 3
- INITIAL SETUP 4
- USER MANAGEMENT 4
- COMMAND INTERFACE 5
- WAN INTERFACE CONFIGURATION 5
- LAN SWITCH CONFIGURATION 5
- VLAN CONFIGURATION 6
- ROUTING CONFIGURATION 6
- SECURITY CONFIGURATION 7
- VPN CONFIGURATION 7
- GOS CONFIGURATION 8
- MGCP CONFIGURATION 9
- VOIP CONFIGURATION 9
- LOCAL CALL ROUTING 10
- SIP CONFIGURATION 10
- VOIP SERVICES AND RELAYS 11
- MONITORING 12
- MONITORING TOOLS 12
- SOFTWARE UPGRADES 13
- WEB USER INTERFACE 13
- THIRD PARTY SOFTWARE 14
- SSH FUNCTIONALITY 14
- TCPDUMP EXPRESSIONS 14
- STANDARDS COMPLIANCE 14
- RULE COMPLIANCE 14
- COPYRIGHT INFORMATION 15
- GLOSSARY 15
- Audience 23
- Organization 23
- Conventions 25
- Documentation 26
- How to get help 26
- About This Guide 27
- ONNECTING 29
- Device Features 30
- Connecting to the Device 31
- Connecting to the Unit 32
- Telnet Access 34
- Telnet Configuration Example 35
- Show Telnet Configuration 35
- Telnet Client Command 35
- Telnet Session Example 35
- SSH Server 36
- SSH Example 37
- Show SSH Configuration 37
- Regenerate SSH keys 37
- Web Server 38
- Disable Web Server Example 39
- Show Web Server Configuration 39
- Show Web Server Statistics 40
- SSL Key Command 41
- SSL CSR Command 41
- SSL Certificate 42
- SSL Configuration Example 43
- Show SSL Configuration 43
- Setting the Time 47
- SNTP Configuration Command 48
- SNTP Client Example 48
- Show SNTP Configuration 48
- Watchdog Reset Timer 49
- DNS Client 50
- Initial Setup 51
- Initial Settings 52
- ANAGEMENT 57
- Password Entry 58
- Changing a Password 59
- Showing Active Users 60
- User Accounts 61
- Add User Account Example 63
- Show User Account 63
- Deleting a User Account 63
- User Groups 64
- Add User Group Example 65
- Show a User Group 65
- Deleting a User Group 65
- User Rights 66
- Configuration Command 67
- Add User Rights Example 67
- Radius Authentication 68
- Configuration Requirements 69
- Configuration Steps 69
- Radius Authentication Records 69
- TACACS+ Authentication 71
- User Management 73
- Logging Off 78
- Saving Configuration Changes 79
- Showing the Configuration 80
- Defining Auto Run Commands 80
- Online Help 81
- Interactive Mode 82
- CLI Command Syntax 83
- Parameter Values 84
- Command Keyword NO 84
- Command Keyword ALL 85
- Maintenance Commands 86
- Command Interface 87
- Debug Commands 88
- WAN Interface (eth0) 92
- WAN Interface Configuration 93
- Show eth0 Configuration 94
- Clear Statistics 95
- Example 1 98
- Example 2 98
- Show Port Configuration 99
- Show Port Status 99
- Show Port Statistics 100
- Release 01.01 NN47928-102 101
- LAN Switch Configuration 101
- Detailed Port Statistics 101
- Clear Port Statistics 101
- LAN Interface (eth1) 102
- Show eth1 Configuration 103
- ARL Configuration 104
- Show ARL Table 105
- Layer 2 QoS 106
- Priority Queues 107
- NN47928-102 Release 01.01 108
- ONFIGURATION 111
- Packet Tagging 112
- VLAN Port Assignment Command 112
- VLAN Port Assignment Examples 112
- Show VLAN Port Assignments 113
- Delete VLAN Port Assignment 113
- Configuring a VLAN Interface 114
- VLAN IP Address Assignment 115
- *> show interface ip vif0 116
- Modifying or Deleting a VLAN 117
- VLAN Deletion Example 118
- VLAN Configuration 119
- Configuring ARP 122
- Delete ARP Entry 123
- Flush ARP Table 123
- Protecting ARP Traffic 123
- Configuring Static Routes 124
- Static Route Examples 125
- Show Route Table 125
- Starting the RIP Daemon 126
- RIP Daemon Example 127
- Show RIP Status 127
- Show RIP Routes 127
- Firewall Security Policies 130
- Security Configuration 131
- Show Firewall Log Entries 132
- Connection Time-outs 133
- Configuring NAT 134
- Configuring NAT Policies 135
- Port Forwarding 137
- Address Forwarding 138
- Static NAT Forwarding 138
- Show NAT Policies 139
- ALG Configuration 140
- Attack Types 141
- Packet Anomaly Protection 141
- Fragment Anomaly Activation 142
- Flood Protection 143
- Flood Detection Activation 144
- Setting Flood Thresholds 145
- Scan Protection 146
- Spoof Protection 147
- IDS Spoof Command 148
- IDS Spoof Example 148
- IDS Statistics 149
- Clear IDS Statistics 150
- Show IDS Log Entries 150
- Configuration Elements 154
- IKE Policies 155
- IKE Lifetime Parameters 155
- IKE Preshared Key Records 156
- Show IKE Statistics 158
- IPsec Parameters 159
- IPsec Proposals 160
- IPsec Policies 160
- VPN Configuration 161
- IPsec Policy Requirements 161
- VPN Configuration Examples 163
- ISP Tunnel Example 166
- Configuring the ISP Gateway 167
- Configuring a VPN 169
- Figure 7 Flow types 173
- VPN support on BSGX4e 174
- Configuration of Cisco 176
- Troubleshooting on BSGX4e 177
- Quality Groups 182
- GoS Classes 182
- Traffic Policing 183
- CAR Policing 184
- Configuring GoS 185
- Configuring a GoS Link 186
- Configuring Quality Groups 187
- Quality Group Command 188
- Quality Group Examples 189
- Show Quality Groups 190
- Delete a Quality Group 190
- VoIP Traffic Protection 191
- ARP Traffic Protection 191
- GoS Security Policy Examples 192
- GoS Statistics 193
- Quality Group Statistics 194
- Instantaneous Statistics 195
- Configuring QoS 197
- GoS Configuration 199
- Configuring Layer 2 QoS 201
- Example for port 1: 203
- Configuring Layer 3 QoS 204
- IICAD40CAD40 210
- SIP Servers 210
- MGCP Servers 210
- MGCP Gateway 211
- MGCP Configuration Steps 211
- MGCP Call Servers 212
- MGCP Server Profile Examples 213
- Show Server Settings 214
- Delete MGCP Server Profile 214
- Show MGCP Server Status 214
- MGCP Configuration 215
- MGCP Signaling Proxy (MSP) 216
- Show MGCP Call Statistics 219
- CA Port 221
- Act Calls 221
- Timeout 221
- Configuring the MGCP Gateway 223
- Configuration Restraints 224
- MGCP Gateway Example 225
- Show MGCP Gateway Status 226
- Show Media Stream Status 226
- MGCP Endpoints 227
- Media Settings Example 230
- Show Media Settings 230
- Show Media Status 230
- Access Control List (ACL) 232
- Access Control List Command 233
- ACL Entry Example 233
- Show ACL 234
- Show CDP Entry 234
- Show CDP Neighbors 235
- Call Admission Control (CAC) 236
- Show Call Admission Settings 237
- FXS Port Configuration 238
- VoIP Configuration 239
- Country Code Setting Example 239
- Show Country Code 239
- Jitter Buffer Settings 240
- Call Progress Tones 241
- Re-configure Tones 242
- Configuration Example 242
- DSP Gain Settings 243
- Line Impedance Settings 243
- Electrical Status 244
- Line Fault Testing 245
- Resistance Tests 246
- Monitored Calls 248
- VQM Analyser Command 249
- VQM Analyser Example 250
- Show VQM Call Summary 250
- Voice Quality Statistics 251
- Alarm Log Entries 252
- Alarm Statistics 252
- Call Records 253
- Show Call History 254
- VoIP Service Interruption 255
- Local Call Routing (LCR) Mode 256
- LCR Settings 257
- LCR Settings Command 258
- Show Gain Settings 260
- FxO Line Impedance Settings 260
- Local Call Routing 261
- Show FxO Impedance Settings 261
- Show LCR Status 262
- Show LCR Connections 262
- SIP Gateway 265
- SIP Configuration Steps 265
- SIP Call Server Access 266
- SIP Server Profile Command 267
- SIP Server Profile Examples 267
- Show SIP Server Settings 269
- Delete SIP Server Profile 270
- Show SIP Server Status 270
- SIP Session Controller 271
- SIP Signaling Proxy (SSP) 272
- SIP Configuration 273
- Show SIP Signaling Statistics 274
- Show SIP Call Statistics 275
- Show SIP Call Records 276
- Show Registered Endpoints 276
- SIP Gateway Settings Command 279
- SIP Gateway Settings Example 279
- SIP Gateway Configuration 280
- Media Stream 283
- Numbering Plan Command 284
- Numbering Plan Entry Examples 285
- Show Numbering Plan 287
- SIP Endpoints 288
- Verify Endpoint Registration 289
- IP Address Change 289
- Configuring SIP 290
- Step 5-Make calls 302
- DHCP Server 309
- VoIP Services and Relays 311
- DHCP Relay 312
- DNS Relay 313
- DNS Relay Example 314
- Show DNS Relay Settings 314
- Show DNS Sessions 314
- Show DNS Relay Cache 314
- SNTP Relay 315
- TFTP Relay 316
- TFTP Relay Settings Example 317
- Show TFTP Relay Settings 317
- Show TFTP Sessions 317
- TFTP File Cache 318
- TFTP Cache Example 319
- Show TFTP Cache Contents 319
- Delete Files to be Cached 320
- Clear TFTP Cache 320
- ONITORING 321
- Show Hardware Information 322
- Show System Status 322
- Show System Operation Summary 323
- Audit Logging 324
- Module Logging 325
- Logging Level Command 326
- Mapping Log Destinations 327
- Log Destination Map Examples 328
- Show Log Destination Map 328
- Show Module Log Entries 329
- Configure Log Server 329
- Ethernet Interface Statistics 331
- IP Stack Statistics 331
- IP Statistics 332
- ICMP Statistics 333
- UDP Statistics 335
- TCP Statistics 335
- 0 Checksum Error 0 336
- Monitoring 337
- Protocol Monitoring (PMON) 340
- Enable PMON Command 341
- PMON Trace Command 341
- PMON Configuration Example 342
- Show PMON Status 342
- Show PMON Traces 342
- Netflow Exporter 343
- Netflow Exporter Command 344
- Netflow Filter Command 345
- Netflow Configuration Example 345
- Show Netflow Status 346
- Show Netflow Filters 346
- Show Netflow Statistics 346
- Clear Netflow Statistics 346
- SNMP Agent 347
- SNMP Community Command 348
- Show SNMP Agent Configuration 349
- Show SNMP Agent Statistics 349
- Clear SNMP Statistics 351
- SNMP Traps 351
- TCPdump Command 352
- Monitoring Tools 353
- Limited Capture Example 354
- Ping Command 355
- Traceroute Command 356
- Traceroute Example 357
- File System 359
- File System Management 360
- Software Upgrades 361
- Software Upgrade Procedures 362
- Web UI Upgrade Procedure 363
- View Bootloader Version 369
- Restore the Configuration 369
- SFTP Upgrade Procedure 371
- Listing the Configuration 374
- NTERFACE 379
- Web UI Features 380
- Logging on to the Web UI 380
- Access Requirements 381
- Log on Procedure 381
- Web UI Screen Structure 382
- Operations Menu 383
- Web UI Menus 384
- Web User Interface 385
- Monitoring Example 390
- Wizards Example 391
- Exit Web UI 396
- Software Applications 399
- UNCTIONALITY 401
- Authentication 402
- Service Functions 403
- SSH System Architecture 404
- SSH-AUTH 405
- SSH-CONNECTION 405
- XPRESSIONS 407
- TCPdump Expressions 409
- TANDARDS 411
- OMPLIANCE 411
- Security 412
- Quality of Service 412
- Services 413
- Voice Standards 414
- MGCP Session Controller 415
- Standards Compliance 417
- Declaration of Conformity 420
- Supplementary Information 421
- OPYRIGHT 423
- NFORMATION 423
- Copyright Information 425
- Glossary 431
- WinSCP3 399 455
- X509 CSR 41 455
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