Manuals / Brands / Computer Equipment / Switch / ZyXEL Communications / Computer Equipment / Switch

ZyXEL Communications ES-4024 DHCP, 18.1 Overview, 18.2Configuring DHCP Server, 18.1.1 DHCP modes, DHCP, Server, DHCP Status, Advanced Application

1 284

Download 284 pages, 12.38 Mb

ES-4024A User’s Guide

CHAPTER 18

DHCP

This chapter shows you how to configure the DHCP feature.

18.1 Overview

DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual computers to obtain TCP/IP configuration at start-up from a server. You can configure the ES- 4024A as a DHCP server or disable it. When configured as a server, the ES-4024A provides the TCP/IP configuration for the clients. If you disable the DHCP service, you must have another DHCP server on your LAN, or else the computer must be manually configured.

18.1.1 DHCP modes

The ES-4024A can be configured as a DHCP server or DHCP relay agent.

•If you configure the ES-4024A as a DHCP server, it will maintain the pool of addresses and distribute them to your LAN computers.

•If there is an Ethernet device that performs the DHCP server function for your network, then you can configure the ES-4024A as a DHCP relay agent. When the ES-4024A receives a request from a computer on your network, it contacts the Ethernet device (the DHCP server) for the necessary IP information, and then relays the assigned information back to the computer.

18.2Configuring DHCP Server

Click Advanced Application, DHCP in the navigation panel. Select Server in the DHCP Status field to display the screen as shown.

Chapter 18 DHCP

117

Contents

User’s Guide Copyright Disclaimer Interference Statements and Warnings FCC Statement FCC Warning CE Mark Warning: Taiwanese BSMI (Bureau of Standards, Metrology and Inspection) A Warning: Registration Safety Warnings ZyXEL Limited Warranty Note Customer Support Page Table of Contents The Web Configurator Basic Setting Page Page Page Static Route RIP OSPF Page Routing Table Introducing the Commands Page Appendix A Product Specifications Appendix B List of Figures Page Page Page Page Page List of Tables Page Page Page Preface About This User's Guide Related Documentation Syntax Conventions Graphics Icons Key User Guide Feedback Getting to Know Your Switch 1.1 Introduction 1.2 Software Features IP Routing Domain DHCP Differentiated Services (DiffServ) Classifier Queuing Port Mirroring Static Route RIP OSPF DVMRP VRRP STP (Spanning Tree Protocol) / RSTP (Rapid STP) 1.3Hardware Features Ethernet Ports Gigabit Ethernet Ports Mini-GBICSlots Console Port 1.4 Applications 1.4.1 Backbone Application 1.4.2 Bridging Example 1.4.3 High Performance Switched Example 1.4.4 IEEE 802.1Q VLAN Application Examples 1.4.4.1 Tag-basedVLAN Example 1.4.4.2 VLAN Shared Server Example Page Hardware Installation and Connection 2.1 Freestanding Installation 2.2 Mounting the ES-4024Aon a Rack 2.2.1Rack-mountedInstallation Requirements 2.2.1.1Precautions 2.2.2Attaching the Mounting Brackets to the ES-4024A 2.2.3Mounting the ES-4024Aon a Rack Page Page Hardware Overview 3.1 Front Panel Connection 3.1.1 Console Port 3.1.2 Ethernet Ports 3.1.2.1 Default Ethernet Settings 3.1.3Mini GBIC Slots 3.1.3.1 Transceiver Installation 3.1.3.2 Transceiver Removal 3.2 Rear Panel 3.2.1 Power Connector 3.2.2 External Backup Power Supply Connector 3.3 Front Panel LEDs 3.4 Stacking Scenario Examples 3.5 Uplink Scenario Example Page The Web Configurator 4.1 Introduction 4.2System Login 4.3The Status Screen Page Page Page 4.3.1 Change Your Password 4.4 Switch Lockout 4.5 Resetting the Switch 4.5.1 Reload the Configuration File 4.6 Logging Out of the Web Configurator 4.7 Help Initial Setup Example 5.1 Overview 5.1.1Configuring an IP Interface 5.1.2Configuring DHCP Server Settings 5.1.3 Creating a VLAN 5.1.4Setting Port VID PVID Page System Status and Port Statistics 6.1 Overview 6.2 Port Status Summary 6.2.1 Port Details Page Page Page Page Basic Setting 7.1 Overview 7.2 System Information Page 7.3 General Setup Page 7.4 Introduction to VLANs 7.5 IGMP Snooping 7.6 Switch Setup Screen 7.7 IP Setup 7.7.1 IP Interfaces 7.8 Port Setup Page VLAN 8.1 Introduction to IEEE 802.1Q Tagged VLAN 8.1.1 Forwarding Tagged and Untagged Frames 8.2 Automatic VLAN Registration 8.2.1 GARP 8.2.1.1 GARP Timers 8.2.2 GVRP 8.3 Port VLAN Trunking 8.4 Select the VLAN Type 8.5 Static VLAN 8.5.1 Static VLAN Status 8.5.2 Configure a Static VLAN Page 8.5.3 Configure VLAN Port Settings 8.6 Port-basedVLANs 8.6.1 Configure a Port-basedVLAN Page Page Page Page Static MAC Forwarding 9.1 Overview 9.2 Configuring Static MAC Forwarding Page Filtering 10.1 Overview 10.2 Configure a Filtering Rule Page Spanning Tree Protocol 11.1 Overview 11.1.1 STP Terminology 11.1.2 How STP Works 11.1.3 STP Port States 11.2 STP Status Page 11.3 Configure STP Page Page Bandwidth Control 12.1 Bandwidth Control Setup Page Broadcast Storm Control 13.1 Overview 13.2 Broadcast Storm Control Setup Page Mirroring 14.1 Overview 14.2 Port Mirroring Setup Page Link Aggregation 15.1 Overview 15.1.1 Dynamic Link Aggregation 15.1.2 Link Aggregation ID 15.2 Link Aggregation Status 15.3 Link Aggregation Setup Page Port Authentication 16.1 Overview 16.1.1 RADIUS 16.2 Port Authentication Configuration 16.2.1 Activate IEEE 802.1x Security 16.2.2 Configuring RADIUS Server Settings Page Port Security 17.1 Overview 17.2 Port Security Setup Page DHCP 18.1 Overview 18.1.1 DHCP modes 18.2Configuring DHCP Server Page 18.2.1 DHCP Server Configuration Example 18.3 Configuring DHCP Relay Page 18.3.1 DHCP Relay Configuration Example Page Page Access Control 19.1Overview 19.2 The Access Control Main Screen 19.3 About SNMP 19.3.1 Supported MIBs 19.3.2SNMP Traps 19.3.3 Configuring SNMP 19.3.4 Setting Up Login Accounts 19.4 Service Port Access Control 19.5 Remote Management Page Page Classifier 20.1 Overview 20.2Configuring the Classifier Figure 68 Classifier Page 20.3 Classifier Configuration Example Page Page Differentiated Services 21.1 Overview 21.1.1 DSCP and Per-HopBehavior 21.1.2 DiffServ Network Example 21.2 Activating DiffServ 21.3 Configuring Marking Rules 21.4 DSCP-to-IEEE802.1pPriority Mapping 21.4.1 Configuring DSCP Settings Page Page Queuing Method 22.1 Overview 22.1.1 Strict Priority Queuing (SPQ) 22.1.2 Weighted Fair Queuing (WFQ) 22.2 Configuring Queuing Page VRRP 23.1 Overview 23.2 Viewing VRRP Status 23.3 Configuring VRRP 23.3.1 IP Interface Setup 23.3.2 VRRP Parameters 23.3.2.1 Advertisement Interval 23.3.2.2 Priority 23.3.2.3 Preempt Mode 23.3.3 Configuring VRRP Parameters 23.4 VRRP Configuration Summary 23.5 VRRP Configuration Examples 23.5.1 One Subnet Network Example Page 23.5.2 Two Subnets Example Page Page Static Route 24.1 Configuring Static Routes Page RIP 25.1 Overview 25.2 Configuring RIP Figure 92 RIP IGMP 26.1 Overview 26.2 Configuring IGMP Page DVMRP 27.1 Overview 27.2 How DVMRP Works 27.2.1 DVMRP Terminology 27.3 Configuring DVMRP 27.3.1 DVMRP Configuration Error Messages 27.4 Default DVMRP Timer Values OSPF 28.1 Overview 28.1.1 OSPF Autonomous Systems and Areas 28.1.2 How OSPF Works 28.1.3 Interfaces and Virtual Links 28.1.4 Configuring OSPF 28.2 OSPF Status 28.3 Enabling OSPF and General Settings Page 28.4 Configuring OSPF Areas 28.4.1 Viewing OSPF Area Information Table 28.5 Configuring OSPF Interfaces 28.6 Configuring OSPF Virtual Links Page Maintenance 29.1 The Maintenance Screen 29.2 Firmware Upgrade 29.3 Restore a Configuration File 29.4 Backing Up a Configuration File 29.5Load Factory Defaults 29.6Reboot System 29.7FTP Command Line 29.7.1 Filename Conventions 29.7.1.1 Example FTP Commands 29.7.2 FTP Command Line Procedure 29.7.3GUI-basedFTP Clients 29.7.4 FTP over WAN Restrictions Diagnostic 30.1 Diagnostic Page Cluster Management 31.1 Overview 31.2 Cluster Management Status 31.2.1 Cluster Member Switch Management 31.2.1.1 Uploading Firmware to a Cluster Member Switch 31.3 Configuring Cluster Management Page Page MAC Table 32.1 Overview 32.2 Viewing the MAC Table IP Table 33.1 Overview 33.2 Viewing the IP Table ARP Table 34.1 Overview 34.1.1 How ARP Works 34.2 Viewing ARP Table Figure 124 ARP Table Table 78 ARP Table Routing Table 35.1 Overview 35.2 Viewing the Routing Table Page DHCP Server Status 36.1 Overview 36.2 Displaying DHCP Server Status 36.3 Displaying Detail DHCP Server Information Page Page Introducing the Commands 37.1 Overview 37.1.1 Switch Configuration File 37.2 Accessing the CLI 37.2.1Access Priority 37.2.2The Console Port 37.2.2.1Initial Screen 37.2.3 Telnet 37.3 The Login Screen 37.4 Command Syntax Conventions 37.5Getting Help 37.5.1List of Available Commands 37.5.2 Detailed Command Information 37.6 Command Modes 37.7 Using Command History 37.8 Saving Your Configuration 37.8.1 Logging Out 37.9 Command Summary 37.9.1 User Mode 37.9.2 Enable Mode Page Page 37.9.3 General Configuration Mode Page Page Page Page Page Page Page Page Page Page 37.9.4 interface port-channelCommands Page 37.9.5 interface route-domainCommands 37.9.6 config-vlanCommands Page Page Command Examples 38.1 Overview 38.2 show Commands 38.2.1 show system-information 38.2.2 show hardware-monitor 38.2.3 show logging 38.2.4 show interface 38.2.5 show mac address-table 38.3 ping 38.4 traceroute 38.5 Restarting the Switch 38.5.1 Resetting to the Factory Default 38.6 no Command Examples 38.6.1 no mirror-port 38.6.2 no trunk 38.6.3 no port-access-authenticator 38.7 interface Commands 38.7.1 interface port-channel 38.7.2 interface route-domain 38.7.3 filter 38.7.4 mirror 38.7.5 gvrp 38.7.6 ingress-check 38.7.7 frame-type 38.7.8 spq 38.7.9 wfq 38.7.10 egress set 38.7.11 qos priority 38.7.12 name 38.7.13 speed-duplex 38.8 Activating RSTP on the Stacking Module Page IEEE 802.1Q Tagged VLAN Commands 39.1 IEEE 802.1Q Tagged VLAN Overview 39.2 VLAN Databases 39.2.1 Static Entries (SVLAN Table) 39.3 Configuring Tagged VLAN 39.4 Global VLAN1Q Tagged VLAN Configuration Commands 39.4.1 GARP Status 39.4.2 GARP Timer 39.4.3 GVRP Timer 39.4.4 Enable GVRP 39.4.5 Disable GVRP 39.5 Port VLAN Commands 39.5.1 Set Port VID 39.5.2 Set Acceptable Frame Type 39.5.3 Enable or Disable Port GVRP 39.5.4 Modify Static VLAN 39.5.4.1Modify a Static VLAN Table Example 39.5.4.2 Forwarding Process Example Tagged Frames 39.5.5Delete VLAN ID 39.6 Enable VLAN 39.7 Disable VLAN 39.8 Show VLAN Setting Page Page Troubleshooting 40.1 Problems Starting Up the Switch 40.2 Problems Accessing the Switch 40.2.1 Pop-upWindows, JavaScripts and Java Permissions 40.2.1.1 Internet Explorer Pop-upBlockers 2Select Settings…to open the Pop-upBlocker Settings screen Allowed sites 40.2.1.2JavaScripts Custom Level Scripting Active scripting Enable Scripting of Java applets 40.2.1.3 Java Permissions Advanced 2make sure that Use Java 2 for <applet> under Java (Sun) is selected 40.3 Problems with the Password Page Product Specifications Page Page Page IP Subnetting IP Addressing IP Classes Subnet Masks Subnetting Example: Two Subnets Page Example: Four Subnets Example Eight Subnets Subnetting With Class A and Class B Networks Page Symbols Numerics Index