Dell Networking 7048 - DHCP Snooping VLAN Configuration

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792 Snooping and Inspecting Traffic

DHCP Snooping VLAN Configuration

Use the DHCP Snooping VLAN Configuration page to control the DHCP

snooping mode on each VLAN.

To access the DHCP Snooping VLAN Configuration page, click Switching

→

DHCP Snooping

→

VLAN Configuration in the navigation panel.

Figure 27-5. DHCP Snooping VLAN Configuration

Main Page

Default Chapter1
- Series Switch1
- Notes and Cautions2
- Table of Contents3
1 Introduction49
- About this Document49
- Audience49
- Document Conventions50
- Additional Documentation50
2 Switch Features51
- System Management Features52
- Stacking Features57
  - High Port Count57
- Single IP Management57
- Automatic Firmware Update for New Stack Members57
- Stacking Compatibility with the Powerconnect M634857
- Master Failover with Transparent Transition58
- Nonstop Forwarding on the Stack58
- Hot Add/Delete and Firmware Synchronization58
- Security Features58
- Green Technology Features65
- Spanning Tree Protocol Features73
- Link Aggregation Features74
  - Link Aggregation74
  - Link Aggregate Control Protocol (LACP)74
- Routing Features76
- Ipv6 Routing Features78
- Quality of Service (Qos) Features80
3 Hardware Overview85
- Powerconnect 7000 Series Front Panel85
4 Using Dell Openmanage Switch103
- Administrator103
5 Using the Command-Line Interface109
- Accessing the Switch through the CLI109
6 Default Settings117
7 Setting the IP Address and Other121
- Basic Network Information121
- Configuring Basic Network Information (CLI)134
- Basic Network Information Configuration Example138
8 Managing a Switch Stack141
- Stacking Overview141
- Default Stacking Values151
- Managing and Monitoring the Stack (Web)152
9 Configuring Authentication175
- Authorization, and Accounting175
- Accounting180
- Authentication Examples181
- Authorization Examples185
- Using RADIUS Servers to Control Management Access190
- Using TACACS+ Servers to Control Management Access195
  - Which TACACS+ Attributes Does the Switch Support196
10 Monitoring and Logging System201
- Information201
- Monitoring System Information and Configuring Logging (CLI)226
- Logging Configuration Examples233
11 Managing General System Settings239
- System Settings Overview239
- Default General System Information245
- Configuring General System Settings (Web)246
- Configuring System Settings (CLI)267
- General System Settings Configuration Examples276
12 Configuring SNMP283
- SNMP Overview283
- Default SNMP Values285
- Configuring SNMP (Web)287
- Configuring SNMP (CLI)305
- SNMP Configuration Examples314
  - Configuring Snmpv1 and Snmpv2314
  - Configuring Snmpv3315
13 Managing Images and Files319
- Image and File Management Overview319
14 Automatically Updating the Image345
- And Configuration345
- Default Auto Configuration Values357
- Managing Auto Configuration (Web)358
  - Auto-Install Configuration358
- Managing Auto Configuration (CLI)359
  - Managing Auto Configuration359
- Auto Configuration Example360
  - Enabling USB Auto Configuration and Auto Image Download360
  - Enabling DHCP Auto Configuration and Auto Image Download362
15 Monitoring Switch Traffic363
- Traffic Monitoring Overview363
- Default Traffic Monitoring Values368
- Monitoring Switch Traffic (Web)369
- Monitoring Switch Traffic (CLI)393
- Traffic Monitoring Configuration Examples399
  - Configuring Sflow399
  - Configuring RMON401
16 Configuring Iscsi Optimization403
- Iscsi Optimization Overview403
- Default Iscsi Optimization Values409
- Configuring Iscsi Optimization (Web)410
- Configuring Iscsi Optimization (CLI)414
- Iscsi Optimization Configuration Examples416
  - Configuring Iscsi Optimization between Servers and a Disk Array416
17 Configuring Captive Portal419
- Captive Portal Overview419
- Default Captive Portal Behavior and Settings424
- Configuring the Captive Portal (Web)426
- Configuring Captive Portal (CLI)447
- Captive Portal Configuration Example453
  - Configuration Overview454
  - Detailed Configuration Procedures455
18 Configuring Port Characteristics457
- Port Overview457
19 Configuring Port and System481
- Security481
- Port Security (Port-MAC Locking)517
  - Default 802.1X Values517
  - Configuring Port Security (CLI)520
- Denial of Service521
20 Configuring Access Control Lists523
- ACL Overview523
- Configuring Acls (Web)530
- Configuring Acls (CLI)543
- ACL Configuration Examples551
21 Configuring Vlans561
- VLAN Overview561
- Default VLAN Behavior577
- Configuring Vlans (Web)579
22 Configuring the Spanning Tree629
- Protocol629
- Default STP Values639
- Configuring Spanning Tree (Web)640
- Configuring Spanning Tree (CLI)650
- STP Configuration Examples655
  - Configuring STP655
  - Configuring MSTP657
23 Discovering Network Devices659
- Device Discovery Overview659
24 Configuring Port-Based Traffic687
- Control687
- Default Port-Based Traffic Control Values690
- Configuring Port-Based Traffic Control (Web)691
- Configuring Port-Based Traffic Control (CLI)698
- Port-Based Traffic Control Configuration Example701
25 Configuring L2 Multicast Features703
- L2 Multicast Overview703
- Snooping Switch Restrictions711
- Default L2 Multicast Values713
- Configuring L2 Multicast Features (Web)715
- Configuring L2 Multicast Features (CLI)747
26 Configuring Connectivity Fault761
- Management761
- Dot1Ag Configuration Example778
27 Snooping and Inspecting Traffic781
- Traffic Snooping and Inspection Overview781
- Default Traffic Snooping and Inspection Values787
- Configuring Traffic Snooping and Inspection (Web)789
- Configuring Traffic Snooping and Inspection (CLI)810
- Traffic Snooping and Inspection Configuration Examples815
  - Configuring DHCP Snooping815
  - Configuring IPSG817
28 Configuring Link Aggregation819
- Link Aggregation Overview819
- Default Link Aggregation Values823
- Configuring Link Aggregation (Web)824
- Configuring Link Aggregation (CLI)830
- Link Aggregation Configuration Examples834
  - Configuring Dynamic Lags834
  - Configuring Static Lags835
29 Managing the MAC Address Table837
- MAC Address Table Overview837
- Default MAC Address Table Values838
- Managing the MAC Address Table (Web)839
  - Static Address Table839
  - Dynamic Address Table841
- Managing the MAC Address Table (CLI)842
  - Managing the MAC Address Table842
30 Configuring Routing Interfaces843
- Routing Interface Overview843
- Default Routing Interface Values848
- Configuring Routing Interfaces (Web)849
- Configuring Routing Interfaces (CLI)855
31 Configuring DHCP Server Settings859
- DHCP Overview859
- Default DHCP Server Values861
- Configuring the DHCP Server (Web)862
- Configuring the DHCP Server (CLI)874
- DHCP Server Configuration Examples878
  - Configuring a Dynamic Address Pool878
  - Configuring a Static Address Pool880
32 Configuring IP Routing883
- IP Routing Overview883
- Default IP Routing Values885
- Configuring IP Routing Features (Web)887
- Configuring IP Routing Features (CLI)899
- IP Routing Configuration Example904
  - Configuring Powerconnect Switch a905
  - Configuring Powerconnect Switch B906
33 Configuring L2 and L3 Relay907
- Features907
34 Configuring OSPF and Ospfv3931
- OSPF Overview932
- OSPF Feature Details934
- Default OSPF Values940
- Configuring OSPF Features (Web)942
- Configuring Ospfv3 Features (Web)958
- Ospfv3 Route Redistribution Configuration972
- Ospfv3 Route Redistribution Summary973
- NSF Ospfv3 Configuration974
- Configuring OSPF Features (CLI)975
- Configuring Ospfv3 Features (CLI)987
- OSPF Configuration Examples997
35 Configuring RIP1019
- RIP Overview1019
- Default RIP Values1021
- Configuring RIP Features (Web)1022
- Configuring RIP Features (CLI)1027
- RIP Configuration Example1031
36 Configuring VRRP1033
- VRRP Overview1033
- Default VRRP Values1037
- Configuring VRRP Features (Web)1038
- Configuring VRRP Features (CLI)1046
  - Configuring VRRP Settings1046
- VRRP Configuration Example1048
  - VRRP with Load Sharing1048
  - VRRP with Route and Interface Tracking1052
37 Configuring Ipv6 Routing1057
- Ipv6 Routing Overview1057
  - How Does Ipv6 Compare with Ipv41058
  - How Are Ipv6 Interfaces Configured1058
- Default Ipv6 Routing Values1059
- Configuring Ipv6 Routing Features (Web)1061
- Configuring Ipv6 Routing Features (CLI)1071
- Ipv6 Static Reject and Discard Routes1078
38 Configuring Dhcpv6 Server and Relay Settings1081
- Dhcpv6 Overview1081
- Default Dhcpv6 Server and Relay Values1083
- Configuring the Dhcpv6 Server and Relay (Web)1084
- Configuring the Dhcpv6 Server and Relay (CLI)1093
- Dhcpv6 Configuration Examples1097
39 Configuring Differentiated Services1101
- Diffserv Overview1101
  - How Does Diffserv Functionality Vary Based on the Role of the Switch1102
  - What Are the Elements of Diffserv Configuration1102
- Default Diffserv Values1103
- Configuring Diffserv (Web)1104
- Configuring Diffserv (CLI)1116
- Diffserv Configuration Examples1123
  - Providing Subnets Equal Access to External Network1123
  - Diffserv for Voip1126
40 Configuring Class-Of-Service1129
- Cos Overview1129
- Default Cos Values1132
- Configuring Cos (Web)1133
- Configuring Cos (CLI)1140
- Cos Configuration Example1144
41 Configuring Auto Voip1147
- Auto Voip Overview1147
  - How Does Auto-Voip Use Acls1148
- Default Auto Voip Values1148
- Configuring Auto Voip (Web)1149
  - Auto Voip Global Configuration1149
  - Auto Voip Interface Configuration1149
- Configuring Auto Voip (CLI)1152
42 Managing Ipv4 and Ipv6 Multicast1153
- L3 Multicast Overview1153
- Default L3 Multicast Values1171
- Configuring General Ipv4 Multicast Features (Web)1173
- Configuring Ipv6 Multicast Features (Web)1180
  - Ipv6 Multicast Route Table1180
- Configuring IGMP and IGMP Proxy (Web)1181
- Configuring MLD and MLD Proxy (Web)1190
- Configuring PIM for Ipv4 and Ipv6 (Web)1200
- Configuring DVMRP (Web)1212
- Configuring L3 Multicast Features (CLI)1219
43 System Process Definitions1243

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