3Com Baseline 2928 PWR Plus

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3-7

Figure 3-7 Enable DHCP snooping

z Click on the Enable radio button next to DHCP Snooping.

# Configure DHCP snooping functions on GigabitEthernet 1/0/1.

z Click the icon of GigabitEthernet 1/0/1 on the interface list. Perform the following operations on

the DHCP Snooping Interface Configuration page shown in

Figure 3-8.

Main Page

Table of Contents4
- About this Manual3
- Overview8
- Configuration through the Web Interface9
- Energy Saving15
- Interface Statistics15
- Snmp15
- VLAN Interface15
- MAC Address16
Configuration Wizard36
- Configuration Wizard37
  - Overview37
  - Basic Service Setup37
Irf42
- Irf43
- IRF Overview43
  - Introduction to Stack43
  - Establishing a Stack43
- Configuring an IRF Stack44
- IRF Stack Configuration Example48
- Configuration Guidelines53
Summary54
- Summary55
  - Overview55
  - Displaying Device Summary55
System Time Configuration61
- System Time Configuration62
Log Management66
- Log Management67
  - Overview67
  - Configuring Log Management67
Configuration Management71
- Configuration Management72
Device Maintenance75
- Device Maintenance76
File Management80
- File Management81
  - Overview81
  - File Management Configuration81
Figure 1-7 Display the Rate Settings of Ports93
- Configuring Port Mirroring94
- Introduction to Port Mirroring94
  - Implementing Port Mirroring94
- Port Mirroring Configuration94
- Configuration Examples97
  - Local Port Mirroring Configuration Example97
- Configuration Guidelines100
  - User Management102
Figure 1-3 Switch to the Management Level.106
- Loopback Test Configuration107
Rmon120
- Rmon121
- RMON Overview121
  - Working Mechanism121
  - RMON Groups122
- Configuring RMON123
- RMON Configuration Example133
  - Energy Saving Configuration139
  - Configuring Energy Saving on a Port139
Snmp141
- Snmp142
- SNMP Overview142
- SNMP Configuration144
- SNMP Configuration Example154
  - Interface Statistics160
  - Displaying Interface Statistics160
VLAN Configuration162
- VLAN Configuration163
- Configuring a VLAN166
- VLAN Configuration Example171
- Configuration Guidelines175
  - Vlan Interface Configuration177
  - Configuring Vlan Interfaces177
Voice VLAN Configuration181
- Voice VLAN Configuration182
  - Voice Vlan Assignment Modes182
  - Security Mode and Normal Mode of Voice Vlans184
- Configuring the Voice VLAN185
- Voice VLAN Configuration Examples189
  - Configuring Voice VLAN on a Port in Automatic Voice VLAN Assignment Mode189
  - Configuring a Voice VLAN on a Port in Manual Voice VLAN Assignment Mode194
- Configuration Guidelines199
Mac Address Configuration201
- MAC Address Configuration202
Mstp Configuration207
- Introduction to STP208
- MSTP Configuration208
- Overview208
- Introduction to MSTP216
- Introduction to RSTP216
- Configuring MSTP222
- MSTP Configuration Example230
- Guidelines235
Link Aggregation and Lacp Configuration237
- Link Aggregation and LACP Configuration238
- Overview238
- Configuring Link Aggregation and LACP241
- Link Aggregation and LACP Configuration Example247
- Configuration Guidelines249
Lldp251
- Lldp252
- Overview252
- Configuring LLDP257
- LLDP Configuration Examples271
  - LLDP Basic Settings Configuration Example271
  - CDP-Compatible LLDP Configuration Example276
- LLDP Configuration Guidelines281
Igmp Snooping282
- IGMP Snooping283
- Overview283
- Configuring IGMP Snooping286
- IGMP Snooping Configuration Examples291
- Routing292
Routing Configuration298
- Overview299
- Routing Configuration299
- Configuring Ipv4 Routing300
  - Displaying the Ipv4 Active Route Table300
  - Creating an Ipv4 Static Route301
- Static Route Configuration Examples302
- Precautions306
Table of Contents307
- 1 DHCP Overview308
- 2 DHCP Relay Agent Configuration313
- 3 DHCP Snooping Configuration322
Arp Management/Arp Attack Defense Configuration339
- 1 ARP Management340
- 2 ARP Attack Defense Configuration349
  - ARP Detection349
Architecture of 802.1X355
- Architecture of 802.1X356
- Overview356
- Configuring 802.1X365
- User365
Aaa Configuration384
- AAA Configuration385
- Overview385
  - Introduction to AAA385
  - Introduction to ISP Domain386
- Configuring AAA386
- AAA Configuration Example392
Radius397
- Overview398
- Radius398
- Configuring Radius403
  - Configuring RADIUS Servers404
  - Configuring RADIUS Parameters404
- Protocols and Standards403
  - Configuration Task List403
- RADIUS Configuration Example408
- Configuration Guidelines413
  - Configuring Users415
Pki Configuration419
- PKI Configuration420
- PKI Overview420
- Configuring PKI422
- PKI Configuration Example434
  - Configuring a PKI Entity to Request a Certificate from a CA434
- Configuration Guidelines439
- Port Isolation Group440
- Authorized IP444
Figure 1-5 Configure Authorized IP449
- 1 ACL Configuration450
- 2 Qos Configuration461
- 3 Acl/Qos Configuration Examples488

3Com Baseline 2928 PWR Plus - Page 328

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