Smc-networks SMC Tiger 10/100 SMC6128L2 Manual de usuario Pagina 574
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- Tabla de contenidos
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
C
OMMAND
L
INE
I
NTERFACE
4-274
Command Usage
• An untrusted interface is an interface that is configured to receive
messages from outside the network or firewall. A trusted interface is
an interface that is configured to receive only messages from within
the network.
• When DHCP snooping enabled globally using the ip dhcp snooping
command (page 4-270), and enabled on a VLAN with this command,
DHCP packet filtering will be performed on any untrusted ports
within the VLAN according to the default status, or as specifically
configured for an interface with the no ip dhcp snooping trust
command.
• When an untrusted port is changed to a trusted port, all the dynamic
DHCP snooping bindings associated with this port are removed.
• Additional considerations when the switch itself is a DHCP client –
The port(s) through which it submits a client request to the DHCP
server must be configured as trusted.
Example
This example sets port 5 to untrusted.
Related Commands
ip dhcp snooping (4 -270)
ip dhcp snooping vlan (4 -272)
ip dhcp snooping verify mac-address
This command verifies the client’s hardware address stored in the DHCP
packet against the source MAC address in the Ethernet header. Use the no
form to disable this function.
Syntax
[no] ip dhcp snooping verify mac-address
Default Setting
Enabled
Console(config)#interface ethernet 1/5
Console(config-if)#no ip dhcp snooping trust
Console(config-if)#
- TigerSwitch 10/100 1
- Management Guide 3
- Glossary 21
- NTRODUCTION 31
- ESCRIPTION 33
- System Defaults 37
- Required Connections 42
- ONNECTING 43
- Basic Configuration 44
- Setting Passwords 45
- Setting an IP Address 46
- Dynamic Configuration 47
- Saving Configuration Settings 51
- Managing System Files 52
- AVIGATING 57
- Panel Display 58
- Main Menu 59
- Manual Configuration 75
- Using DHCP/BOOTP 76
- Enabling Jumbo Frames 77
- Managing Firmware 78
- Console Port Settings 83
- Telnet Settings 86
- Configuring Event Logging 88
- System Log Configuration 89
- Remote Log Configuration 91
- Simple Mail Transfer Protocol 93
- Resetting the System 95
- Setting the System Clock 96
- Setting the Time Zone 97
- ONFIGURING 100
- Command Attributes 101
- Command Usage 103
- ANAGEMENT 105
- Setting the Local Engine ID 106
- Specifying a Remote Engine ID 107
- Configuring SNMPv3 Users 108
- Configuring SNMPv3 Groups 114
- Setting SNMPv3 Views 119
- User Authentication 121
- Configuring User Accounts 122
- UTHENTICATION 123
- Configuring HTTPS 128
- Configuring the Secure Shell 131
- Configuring the SSH settings 133
- Field Attributes 133
- Generating the Host Key Pair 135
- Configuring Port Security 140
- Displaying 802.1X Statistics 149
- Statistical Values 149
- Access Control Lists 151
- Setting the ACL Name and Type 152
- Configuring a Standard IP ACL 153
- Console(config-std-acl)# 157
- Console(config-mac-acl)# 158
- Filtering Management Access 160
- Port Configuration 162
- Field Attributes (CLI) 163
- Basic information: 163
- Configuration: 163
- Current status: 164
- Creating Trunk Groups 167
- Configuring LACP Parameters 173
- ONFIGURATION 175
- Displaying LACP Port Counters 176
- Counter Information 176
- Table 3-9. LACP Settings 178
- Configuring Port Mirroring 185
- Configuring Rate Limits 186
- Command Attribute 187
- Showing Port Statistics 188
- Address Table Settings 194
- Displaying the Address Table 196
- Changing the Aging Time 198
- LGORITHM 199
- Displaying Global Settings 200
- VLAN Configuration 215
- VA: VLAN Aware 216
- VU: VLAN Unaware 216
- Displaying Current VLANs 220
- Command Attributes (CLI) 221
- Creating VLANs 222
- Configuring Private VLANs 230
- Associating VLANs 234
- Configuring Protocol VLANs 238
- Quality of Service 249
- Configuring a Class Map 251
- Console(config-cmap)# 253
- Creating QoS Policies 254
- Console(config-if)# 259
- Multicast Filtering 260
- ULTICAST 263
- ILTERING 263
- Enabling IGMP Filter Status 264
- Enabling IGMP Immediate Leave 264
- IGMP Filtering and Throttling 270
- Multicast VLAN Registration 275
- DHCP Snooping 284
- DHCP Snooping Configuration 286
- IP Source Guard 291
- Switch Clustering 296
- LUSTERING 297
- Cluster Member Configuration 298
- Cluster Member Information 299
- Cluster Candidate Information 300
- NTERFACE 301
- Telnet Connection 302
- Entering Commands 303
- Showing Commands 305
- Understanding Command Modes 307
- Exec Commands 307
- Configuration Commands 308
- Command Line Processing 310
- Command Groups 311
- PE (Privileged Exec) 313
- Line Commands 314
- Console(config)#line console 315
- Console(config-line)# 315
- Console#disconnect 1 325
- Console# 325
- General Commands 326
- Console>enable 327
- System Management Commands 332
- Device Designation Commands 333
- User Access Commands 334
- IP Filter Commands 337
- Web Server Commands 340
- Telnet Server Commands 344
- Secure Shell Commands 345
- Console#show ssh 354
- Event Logging Commands 357
- Table 4-18 Logging Levels 358
- 0 emergencies System unusable 359
- SMTP Alert Commands 365
- Time Commands 370
- System Status Commands 376
- Example 379
- Frame Size Commands 382
- Flash/File Commands 384
- Authentication Commands 391
- RADIUS Client 394
- TACACS+ Client 399
- Port Security Commands 401
- 802.1X Port Authentication 404
- Access Control List Commands 413
- IP ACLs 414
- Command Function Mode Page 415
- permit host 10.1.1.21 419
- Priority 01234567 421
- Queue 12034567 421
- ACL Information 422
- SNMP Commands 423
- Table 4-37 SNMP Commands 424
- Console(config)#snmp-server 425
- Console(config)# 425
- Field Description 440
- Command Mode 442
- Privileged Exec 442
- Interface Commands 443
- Broadcast Commands 456
- ROADCAST 457
- Mirror Port Commands 458
- Rate Limit Commands 460
- Link Aggregation Commands 462
- GGREGATION 463
- Address Table Commands 475
- Spanning Tree Commands 480
- VLAN Commands 496
- Console(config)#vlan database 497
- Console(config-vlan)# 497
- Configuring VLAN Interfaces 498
- Displaying VLAN Information 506
- XTENSION 515
- Priority Commands 519
- Queue 01234567 523
- Priority 20134567 523
- Multicast Filtering Commands 529
- IGMP Snooping Commands 530
- IGMP Query Commands (Layer 2) 535
- HROTTLING 543
- EGISTRATION 551
- IP Interface Commands 558
- IP Source Guard Commands 564
- DHCP Snooping Commands 569
- Switch Cluster Commands 578
- PECIFICATIONS 585
- Management Features 586
- Standards 587
- Management Information Bases 587
- ROUBLESHOOTING 589
- Using System Logs 591
- Glossary-1 593
- Glossary-2 594
- Glossary-3 595
- Glossary-4 596
- Glossary-5 597
- Glossary-6 598
- Glossary-7 599
- Glossary-8 600
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