Name: Dell Networking 7048
Brand: Dell
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918 Configuring L2 and L3 Relay Features

DHCP Relay VLAN Configuration

Use this page to enable and configure DHCP Relay on specific VLANs.

To access this page, click Switching

→

DHCP Relay

→

VLAN

Configuration in the navigation panel.

Figure 33-5. DHCP Relay VLAN Configuration

To view a summary of the L2 DHCP relay configuration on all VLANs, click

Show All.

Figure 33-6. DHCP Relay VLAN Summary

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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Brand	Dell
Model	Networking 7048
Category	Switch
Language	English