ZyXEL Communications XGS-4528F

Chapter 44 Troubleshooting

XGS-4528F User’s Guide

330

Figure 204 Internet Options

3Type the IP address of your device (the web page that you do not want to have blocked)

with the prefix “http://”. For example, http://192.168.1.1.

4Click Add to move the IP address to the list of Allowed sites.

Figure 205 Pop-up Blocker Settings

5Click Close to return to the Privacy screen.

Contents

Main XGS-4528F Intelligent Layer 3+ Switch Users Guide Page About This User's Guide " Document Conventions 1 " need to configure or helpful tips) or recommendations. Page Safety Warnings 1 Page Page Contents Overview Page Table of Contents Part II: Basic Configuration................................................................... 49 Part III: Advanced Setup........................................................................ 85 Page Page Page Page Page Part V: Management............................................................................. 277 Page Part VI: Troubleshooting & Product Specifications.......................... 325 Part VII: Appendices and Index .......................................................... 343 Page List of Figures Page Page Page Page Page List of Tables Page Page Page Page Page CHAPTER 1 Getting to Know Your Switch 1.1 Introduction 1.1.1 Bridging Example 1.1.2 High Performance Switching Example 1.1.3 Gigabit Ethernet to the Desktop 1.1.4 IEEE 802.1Q VLAN Application Example 1.2 Ways to Manage the Switch 1.3 Good Habits for Managing the Switch CHAPTER 2 Hardware Installation and Connection stacking. 2.1 Freestanding Installation " 2.2 Mounting the Switch on a Rack 2.2.1 Rack-mounted Installation Requirements 1 2.2.2 Attaching the Mounting Brackets to the Switch 2.2.3 Mounting the Switch on a Rack Page CHAPTER 3 Hardware Overview 3.1 Front Panel Connections 3.1.1 Dual Personality Interfaces 3.1.2 1000Base-T Ports 1 connectors. Page 3.2 Rear Panel BDEFAC GF 3.2.1 Power Connector 3.2.2 External Backup Power Supply Connector 3.3 LEDs Chapter 3 Hardware Overview Table 3 LEDs (continued) Page Page CHAPTER 4 The Web Configurator 4.1 Introduction 4.2 System Login Page Page Page Chapter 4 The Web Configurator XGS-4528F Users Guide 55 Table 5 Web Configurator Screen Sub-links Details The following table describes the links in the navigation panel. Table 6 Navigation Panel Links Chapter 4 The Web Configurator XGS-4528F Users Guide 57 Table 6 Navigation Panel Links (continued) 4.3.1 Change Your Password 4.4 Saving Your Configuration " 4.5 Switch Lockout " yourself out, try using out-of-band management (via the management port) to configure the Switch. 4.6 Resetting the Switch 4.6.1 Reload the Configuration File 4.7 Logging Out of the Web Configurator 4.8 Help CHAPTER 5 Initial Setup Example 5.1 Overview 5.1.1 Configuring an IP Interface 5.1.2 Configuring DHCP Server Settings 5.1.3 Creating a VLAN EXAMPLE " screen refer to the same VLAN ID. 5.1.4 Setting Port VID 5.1.5 Enabling RIP Page CHAPTER 6 System Status and Port Statistics Chapter 6 System Status and Port Statistics The following table describes the labels in this screen. 6.2.1 Status: Port Details Table 7 Status Page Chapter 6 System Status and Port Statistics Table 8 Status > Port Details (continued) Page Page CHAPTER 7 Basic Setting 7.1 Overview 7.2 System Information Figure 25 Basic Setting > System Info Table 9 Basic Setting > System Info 7.3 General Setup The following table describes the labels in this screen. Table 10 Basic Setting > General Setup (continued) 7.4 Introduction to VLANs " 7.5 Switch Setup Screen Figure 27 Basic Setting > Switch Setup Table 11 Basic Setting > Switch Setup 7.6 IP Setup 7.6.1 IP Interfaces Figure 28 Basic Setting > IP Setup Table 12 Basic Setting > IP Setup Chapter 7 Basic Setting XGS-4528F Users Guide 81 7.7 Port Setup Note: Deleting all IP subnets locks you out of the Switch. Table 12 Basic Setting > IP Setup (continued) Page Chapter 7 Basic Setting XGS-4528F Users Guide 83 Table 13 Basic Setting > Port Setup (continued) Page PART III Advanced Setup Page CHAPTER 8 VLAN 8.1 Introduction to IEEE 802.1Q Tagged VLANs 8.1.1 Forwarding Tagged and Untagged Frames 8.2 Automatic VLAN Registration 8.2.1 GARP 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 Static VLAN Details 8.5.3 Configure a Static VLAN The following table describes the related labels in this screen. 8.5.4 Configure VLAN Port Settings Table 17 Advanced Application > VLAN > Static VLAN Note: Changes in this row are copied to all the ports as soon as you Chapter 8 VLAN XGS-4528F Users Guide 93 Figure 35 Advanced Application > VLAN > VLAN Port Setting Table 18 Advanced Application > VLAN > VLAN Port Setting 8.6 Subnet Based VLANs Chapter 8 VLAN XGS-4528F Users Guide 95 8.7 Configuring Subnet Based VLAN " you use IEEE 802.1Q tagged VLAN. Figure 37 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN The following table describes the labels in this screen. Table 19 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN Setup " Table 19 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN Setup 8.9 Configuring Protocol Based VLAN 8.10 Create an IP-based VLAN Example 8.11 Port-based VLAN Setup " 8.11.1 Configure a Port-based VLAN Page Table 21 Advanced Application > VLAN: Port Based VLAN Setup CHAPTER 9 Static MAC Forward Setup Chapter 9 Static MAC Forward Setup The following table describes the labels in this screen. Table 22 Advanced Application > Static MAC Forwarding Note: Static MAC addresses do not age out. CHAPTER 10 Filtering 10.1 Configure a Filtering Rule Chapter 10 Filtering Table 23 Advanced Application > FIltering (continued) CHAPTER 11 Spanning Tree Protocol 11.1 STP/RSTP Overview " 11.1.1 STP Terminology 11.1.2 How STP Works 11.1.3 STP Port States 11.1.4 Multiple RSTP " 11.1.5 Multiple STP B VLAN 1 VLAN 2 B VLAN 1 VLAN 2 11.2 Spanning Tree Protocol Status Screen 11.3 Spanning Tree Configuration 11.4 Configure Rapid Spanning Tree Protocol Chapter 11 Spanning Tree Protocol XGS-4528F Users Guide 115 Table 27 Advanced Application > Spanning Tree Protocol > RSTP (continued) 11.5 Rapid Spanning Tree Protocol Status " Figure 53 Advanced Application > Spanning Tree Protocol > Status: RSTP The following table describes the labels in this screen. Table 28 Advanced Application > Spanning Tree Protocol > Status: RSTP Note: The listening state does not exist in RSTP. 11.6 Configure Multiple Rapid Spanning Tree Protocol Table 29 Advanced Application > Spanning Tree Protocol > MRSTP (continued) Chapter 11 Spanning Tree Protocol XGS-4528F Users Guide 119 11.7 Multiple Rapid Spanning Tree Protocol Status " Figure 55 Advanced Application > Spanning Tree Protocol > Status: MRSTP The following table describes the labels in this screen. Table 30 Advanced Application > Spanning Tree Protocol > Status: MRSTP Note: The listening state does not exist in RSTP. Page Page The following table describes the labels in this screen. Table 31 Advanced Application > Spanning Tree Protocol > MSTP Chapter 11 Spanning Tree Protocol XGS-4528F Users Guide 123 11.9 Multiple Spanning Tree Protocol Status Note: Changes in this row are copied to all the ports as soon as you Table 31 Advanced Application > Spanning Tree Protocol > MSTP (continued) " Chapter 11 Spanning Tree Protocol XGS-4528F Users Guide 125 Table 32 Advanced Application > Spanning Tree Protocol > Status: MSTP (continued) Page CHAPTER 12 Bandwidth Control 12.1 Bandwidth Control Overview 12.1.1 CIR and PIR " " Chapter 12 Bandwidth Control Figure 58 Advanced Application > Bandwidth Control Table 33 Advanced Application > Bandwidth Control CHAPTER 13 Broadcast Storm Control 13.1 Broadcast Storm Control Setup Chapter 13 Broadcast Storm Control Table 34 Advanced Application > Broadcast Storm Control CHAPTER 14 Mirroring Chapter 14 Mirroring Table 35 Advanced Application > Mirroring CHAPTER 15 Link Aggregation 15.1 Link Aggregation Overview " 15.2 Dynamic Link Aggregation 15.3 Link Aggregation Status 15.4 Link Aggregation Setting 15.5 Link Aggregation Control Protocol Chapter 15 Link Aggregation XGS-4528F Users Guide 137 Figure 63 Advanced Application > Link Aggregation > Link Aggregation Setting > LACP Table 40 Advanced Application > Link Aggregation > Link Aggregation Setting > LACP Note: Do not configure this screen unless you want to enable dynamic link aggregation. 15.6 Static Trunking Example A B Page Page CHAPTER 16 Port Authentication 16.1 Port Authentication Overview " 16.1.1 IEEE 802.1x Authentication 16.1.2 MAC Authentication 16.2 Port Authentication Configuration 16.2.1 Activate IEEE 802.1x Security 16.2.2 Activate MAC Authentication Page Page CHAPTER 17 Port Security Chapter 17 Port Security Figure 71 Advanced Application > Port Security Table 43 Advanced Application > Port Security Page Page CHAPTER 18 Classifier 18.1 About the Classifier and QoS 18.2 Configuring the Classifier Page Chapter 18 Classifier XGS-4528F Users Guide 153 you configure the socket numbers. you configure the socket numbers. Table 44 Advanced Application > Classifier (continued) Chapter 18 Classifier 18.3 Viewing and Editing Classifier Configuration " lower layer rule. Figure 73 Advanced Application > Classifier: Summary Table The following table describes the labels in this screen. The following table shows some other common Ethernet types and the corresponding protocol number. 18.4 Classifier Example Page CHAPTER 19 Policy Rule 19.1 Policy Rules Overview 19.1.1 DiffServ 19.1.2 DSCP and Per-Hop Behavior Page Chapter 19 Policy Rule XGS-4528F Users Guide 159 Table 48 Advanced Application > Policy Rule Chapter 19 Policy Rule 19.3 Viewing and Editing Policy Configuration Figure 76 Advanced Application > Policy Rule: Summary Table The following table describes the labels in this screen. 19.4 Policy Example Table 48 Advanced Application > Policy Rule (continued) Page Page CHAPTER 20 Queuing Method 20.1 Queuing Method Overview 20.1.1 Strictly Priority 20.1.2 Weighted Fair Queuing 20.2 Configuring Queuing Chapter 20 Queuing Method XGS-4528F Users Guide 165 The following table describes the labels in this screen. Table 50 Advanced Application > Queuing Method Note: Changes in this row are copied to all the ports as soon as you make them. Page CHAPTER 21 VLAN Stacking 21.1 VLAN Stacking Overview 21.1.1 VLAN Stacking Example 21.2 VLAN Stacking Port Roles " 21.3 VLAN Tag Format 21.3.1 Frame Format 21.4 Configuring VLAN Stacking Chapter 21 VLAN Stacking XGS-4528F Users Guide 171 Table 54 Advanced Application > VLAN Stacking (continued) Page CHAPTER 22 Multicast 22.1 Multicast Overview 22.1.1 IP Multicast Addresses 22.1.2 IGMP Filtering 22.2 Multicast Status 22.3 Multicast Setting Page Note: Changes in this row are copied to all the ports as soon as you make them. Table 56 Advanced Application > Multicast > Multicast Setting (continued) 22.4 IGMP Snooping VLAN 22.5 IGMP Filtering Profile 22.6 MVR Overview 22.6.1 Types of MVR Ports 22.6.2 MVR Modes 22.6.3 How MVR Works Page Figure 87 Advanced Application > Multicast > Multicast Setting > MVR Table 59 Advanced Application > Multicast > Multicast Setting > MVR Chapter 22 Multicast XGS-4528F Users Guide 183 22.8 MVR Group Configuration " Table 59 Advanced Application > Multicast > Multicast Setting > MVR (continued) Figure 88 Advanced Application > Multicast > Multicast Setting > MVR: Group Configuration The following table describes the labels in this screen. 22.8.1 MVR Configuration Example Table 60 Advanced Application > Multicast > Multicast Setting > MVR: Group Configuration Page Page CHAPTER 23 Authentication & Accounting 23.1 Authentication, Authorization and Accounting 23.1.1 Local User Accounts Client AAA Server 23.2 Authentication and Accounting Screens 23.2.1 RADIUS Server Setup Chapter 23 Authentication & Accounting XGS-4528F Users Guide 189 Figure 95 Advanced Application > Auth and Acct > RADIUS Server Setup Table 62 Advanced Application > Auth and Acct > RADIUS Server Setup 23.2.2 TACACS+ Server Setup Table 62 Advanced Application > Auth and Acct > RADIUS Server Setup (continued) Chapter 23 Authentication & Accounting XGS-4528F Users Guide 191 Figure 96 Advanced Application > Auth and Acct > TACACS+ Server Setup Table 63 Advanced Application > Auth and Acct > TACACS+ Server Setup 23.2.3 Authentication and Accounting Setup Table 63 Advanced Application > Auth and Acct > TACACS+ Server Setup (continued) Chapter 23 Authentication & Accounting XGS-4528F Users Guide 193 Figure 97 Advanced Application > Auth and Acct > Auth and Acct Setup Table 64 Advanced Application > Auth and Acct > Auth and Acct Setup Table 64 Advanced Application > Auth and Acct > Auth and Acct Setup (continued) 23.2.4 Vendor Specific Attribute " configure VSAs for users authenticating via the RADIUS server. 23.2.5 Tunnel Protocol Attribute 23.3 Supported RADIUS Attributes 23.3.1 Attributes Used for Authentication 23.3.2 Attributes Used for Accounting Page Page Page CHAPTER 24 IP Source Guard 24.1 IP Source Guard Overview 24.1.1 DHCP Snooping Overview " there are no trusted ports. 24.1.2 ARP Inspection Overview AXB " enable ARP inspection so that the Switch has enough time to build the binding table. 24.2 IP Source Guard 24.3 IP Source Guard Static Binding Figure 101 IP Source Guard Static Binding Table 71 IP Source Guard Static Binding Page Table 72 DHCP Snooping Chapter 24 IP Source Guard XGS-4528F Users Guide 209 Table 72 DHCP Snooping (continued) 24.5 DHCP Snooping Configure Chapter 24 IP Source Guard XGS-4528F Users Guide 211 24.5.1 DHCP Snooping Port Configure Use this screen to specify whether ports are trusted or untrusted ports for DHCP snooping. " there are no trusted ports. Table 73 DHCP Snooping Configure (continued) Figure 104 DHCP Snooping Port Configure Table 74 DHCP Snooping Port Configure 24.5.2 DHCP Snooping VLAN Configure 24.6 ARP Inspection Status 24.6.1 ARP Inspection VLAN Status Chapter 24 IP Source Guard XGS-4528F Users Guide 215 Figure 107 ARP Inspection VLAN Status 24.6.2 ARP Inspection Log Status Table 77 ARP Inspection VLAN Status Figure 108 ARP Inspection Log Status Table 78 ARP Inspection Log Status Chapter 24 IP Source Guard XGS-4528F Users Guide 217 24.7 ARP Inspection Configure Figure 109 ARP Inspection Configure Table 79 ARP Inspection Configure 24.7.1 ARP Inspection Port Configure Figure 110 ARP Inspection Port Configure Table 79 ARP Inspection Configure (continued) Chapter 24 IP Source Guard XGS-4528F Users Guide 219 24.7.2 ARP Inspection VLAN Configure Figure 111 ARP Inspection VLAN Configure Table 80 ARP Inspection Port Configure Table 81 ARP Inspection VLAN Configure CHAPTER 25 Loop Guard 25.1 Loop Guard Overview Page " 25.2 Loop Guard Setup Page PART IV Page XGS-4528F Users Guide 227 CHAPTER 26 Static Route This chapter shows you how to configure static routes. 26.1 Configuring Static Routing Figure 117 IP Application > Static Routing Chapter 26 Static Route Table 83 IP Application > Static Routing (continued) CHAPTER 27 RIP 27.1 RIP Overview 27.2 Configuring RIP Page CHAPTER 28 OSPF 28.1 OSPF 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 OSPF and Router Elections 28.1.5 Configuring OSPF 28.2 OSPF Status The following table describes some common output fields. Chapter 28 OSPF XGS-4528F Users Guide 235 28.3 OSPF Configuration Table 88 OSPF Status: Common Output Fields (continued) Figure 122 IP Application > OSPF Configuration: Activating and General Settings The follow table describes the related labels in this screen. Table 89 IP Application > OSPF Configuration: Activating and General Settings 28.4 Configure OSPF Areas 28.4.1 View OSPF Area Information Table Figure 124 IP Application > OSPF Configuration: Summary Table 28.5 Configuring OSPF Interfaces Table 90 IP Application > OSPF Configuration: Area Setup (continued) Table 91 IP Application > OSPF Configuration: Summary Table Chapter 28 OSPF XGS-4528F Users Guide 239 In the OSPF Configuration screen, click Interface to display the OSPF Interface screen. Figure 125 IP Application > OSPF Configuration > OSPF Interface Table 92 IP Application > OSPF Configuration > OSPF Interface within the same area. 28.6 OSPF Virtual-Links Figure 126 IP Application > OSPF Configuration > OSPF Virtual Link Table 92 IP Application > OSPF Configuration > OSPF Interface (continued) Chapter 28 OSPF XGS-4528F Users Guide 241 within the same area. Page CHAPTER 29 IGMP Multicast Routers Hosts Server 29.1 IGMP Overview 29.1.1 How IGMP Works 29.2 Port-based IGMP 29.3 Configuring IGMP Chapter 29 IGMP Figure 131 IP Application > IGMP The following table describes the labels in this screen. Table 94 IP Application > IGMP CHAPTER 30 DVMRP 30.1 DVMRP Overview 30.2 How DVMRP Works 30.2.1 DVMRP Terminology 30.3 Configuring DVMRP Chapter 30 DVMRP XGS-4528F Users Guide 249 30.3.1 DVMRP Configuration Error Messages Figure 134 DVMRP: IGMP/RIP Not Set Error When you disable IGMP, but DVMRP is still active you also see another warning screen. Figure 135 DVMRP: Unable to Disable IGMP Error Table 95 IP Application > DVMRP Page CHAPTER 31 Differentiated Services 31.1 DiffServ Overview 31.1.1 DSCP and Per-Hop Behavior 31.1.2 DiffServ Network Example 31.2 Two Rate Three Color Marker Traffic Policing 31.2.1 TRTCM - Color-blind Mode 31.2.2 TRTCM - Color-aware Mode 31.3 Activating DiffServ 31.3.1 Configuring 2-Rate 3 Color Marker Settings " 31.4 DSCP-to-IEEE 802.1p Priority Settings 31.4.1 Configuring DSCP Settings Page Page CHAPTER 32 DHCP 32.1 DHCP Overview 32.1.1 DHCP Modes 32.1.2 DHCP Configuration Options 32.2 DHCP Status 32.3 DHCP Server Status Detail 32.4 DHCP Relay 32.4.1 DHCP Relay Agent Information 32.4.2 Configuring DHCP Global Relay 32.4.3 Global DHCP Relay Configuration Example " Chapter 32 DHCP XGS-4528F Users Guide 265 Table 105 IP Application > DHCP > VLAN 32.5.1 Example: DHCP Relay for Two VLANs CHAPTER 33 VRRP 33.1 VRRP Overview 33.2 VRRP Status 33.3 VRRP Configuration 33.3.1 IP Interface Setup " " 33.3.2 VRRP Parameters " interval. 33.3.3 Configuring VRRP Parameters Chapter 33 VRRP XGS-4528F Users Guide 271 33.3.4 Configuring VRRP Parameters View the VRRP configuration summary at the bottom of the screen. Table 108 IP Application > VRRP Configuration > VRRP Parameters 33.4 VRRP Configuration Examples 33.4.1 One Subnet Network Example 33.4.2 Two Subnets Example Page Page Page PART V Page CHAPTER 34 Maintenance 34.1 The Maintenance Screen 34.2 Load Factory Default 34.3 Save Configuration " 34.4 Reboot System 34.5 Firmware Upgrade 1 firmware may damage your device. 34.6 Restore a Configuration File 34.7 Backup a Configuration File 34.8 FTP Command Line 34.8.1 Filename Conventions 1 firmware may damage your device. 34.8.2 FTP Command Line Procedure 34.8.3 GUI-based FTP Clients 34.8.4 FTP Restrictions CHAPTER 35 Access Control 35.1 Access Control Overview 35.2 The Access Control Main Screen 35.3 About SNMP 35.3.1 SNMP v3 and Security 35.3.2 Supported MIBs 35.3.3 SNMP Traps Table 115 SNMP System Traps (continued) Table 116 SNMP InterfaceTraps Chapter 35 Access Control XGS-4528F Users Guide 289 Table 116 SNMP InterfaceTraps (continued) Table 117 AAA Traps Table 118 SNMP IP Traps 35.3.4 Configuring SNMP Table 119 SNMP Switch Traps Chapter 35 Access Control XGS-4528F Users Guide 291 Figure 175 Management > Access Control > SNMP The following table describes the labels in this screen. Table 120 Management > Access Control > SNMP Note: SNMP version 2c is backwards compatible with SNMP version 1. 35.3.5 Configuring SNMP Trap Group Chapter 35 Access Control XGS-4528F Users Guide 293 Figure 176 Management > Access Control > SNMP > Trap Group The following table describes the labels in this screen. " Table 121 Management > Access Control > SNMP > Trap Group Figure 177 Management > Access Control > Logins The following table describes the labels in this screen. Table 122 Management > Access Control > Logins Page 35.6 SSH Implementation on the Switch 35.6.1 Requirements for Using SSH 35.7 Introduction to HTTPS " blocks all HTTP connection attempts. 35.8 HTTPS Example 35.8.1 Internet Explorer Warning Messages 35.8.2 Netscape Navigator Warning Messages 35.8.3 The Main Screen E EXAMPL Page The following table describes the fields in this screen. 35.10 Remote Management The following table describes the labels in this screen. Figure 186 Management > Access Control > Remote Management Table 123 Management > Access Control > Service Access Control Table 124 Management > Access Control > Remote Management Page Page CHAPTER 36 Diagnostic 36.1 Diagnostic Page CHAPTER 37 Syslog 37.1 Syslog Overview 37.2 Syslog Setup The following table describes the labels in this screen. 37.3 Syslog Server Setup Chapter 37 Syslog XGS-4528F Users Guide 307 Figure 189 Management > Syslog > Server Setup Table 128 Management > Syslog > Server Setup Page CHAPTER 38 Cluster Management 38.1 Clustering Management Status Overview " Chapter 38 Cluster Management XGS-4528F Users Guide 311 The following table describes the labels in this screen. Figure 192 Cluster Management: Cluster Member Web Configurator Screen 38.2.1 Cluster Member Switch Management Table 130 Management > Cluster Management Figure 193 Example: Uploading Firmware to a Cluster Member Switch The following table explains some of the FTP parameters. 38.3 Clustering Management Configuration Table 131 FTP Upload to Cluster Member Example Chapter 38 Cluster Management XGS-4528F Users Guide 313 Figure 194 Management > Clustering Management > Configuration Table 132 Management > Clustering Management > Configuration Table 132 Management > Clustering Management > Configuration (continued) CHAPTER 39 MAC Table 39.1 MAC Table Overview 39.2 Viewing the MAC Table Click Management > MAC Table in the navigation panel to display the following screen. The following table describes the labels in this screen. CHAPTER 40 IP Table 40.1 IP Table Overview 40.2 Viewing the IP Table Click Management > IP Table in the navigation panel to display the following screen. The following table describes the labels in this screen. CHAPTER 41 ARP Table 41.1 ARP Table Overview 41.1.1 How ARP Works 41.2 Viewing the ARP Table Page CHAPTER 42 Routing Table 42.1 Overview 42.2 Viewing the Routing Table Status Page CHAPTER 43 Configure Clone Chapter 43 Configure Clone Table 137 Management > Configure Clone Page Page XGS-4528F Users Guide 327 CHAPTER 44 Troubleshooting 44.2 Problems Accessing the Switch This chapter covers potential problems and possible remedies. 44.1 Problems Starting Up the Switch " versions may vary. Page Page Page Page 44.3 Problems with the Password Page XGS-4528F Users Guide 335 CHAPTER 45 Product Specifications The following tables summarize the Switchs hardware and firmware features. Table 141 Hardware Specifications Table 142 Firmware Specifications Table 141 Hardware Specifications Page Note: Only upload firmware for your specific model! Chapter 45 Product Specifications XGS-4528F Users Guide 339 Table 143 Switching Specifications The following list, which is not exhaustive, illustrates the standards supported in the Switch. Table 144 Standards Supported Page Page Page Page APPENDIX A IP Addresses and Subnetting Introduction to IP Addresses Structure Subnet Masks Network Size Notation Subnetting Example: Four Subnets Appendix A IP Addresses and Subnetting Example: Eight Subnets Table 150 Subnet 2 Table 151 Subnet 3 Table 152 Subnet 4 Table 153 Eight Subnets Subnet Planning The following table is a summary for subnet planning on a network with a 24-bit network The following table is a summary for subnet planning on a network with a 16-bit network number. Table 153 Eight Subnets (continued) Table 154 24-bit Network Number Subnet Planning Configuring IP Addresses Private IP Addresses APPENDIX B Legal Information Copyright Certifications ZyXEL Limited Warranty Page Page APPENDIX C Customer Support Page Page Page Page Page Index Numerics A B C D E F G H I J L M N O P Q R S T U V W Z