ZyXEL Communications ZyXEL Dimension ES-2048 - Manual (Page 17)

Table of Contents
ES-2048 User’s Guide
17
25.1 DHCP Overview ............................................................................................................. 209
25.1.1 DHCP Modes ........................................................................................................ 209
25.1.2 DHCP Configuration Options ................................................................................. 209
25.2 DHCP Status ................................................................................................................... 209
25.3 DHCP Relay ................................................................................................................... 210
25.3.1 DHCP Relay Agent Information ............................................................................. 210
25.3.2 Configuring DHCP Global Relay .............................................................................211
25.3.3 Global DHCP Relay Configuration Example .......................................................... 212
25.4 Configuring DHCP VLAN Settings ................................................................................ 212
25.4.1 Example: DHCP Relay for Two VLANs .................................................................. 214
Part V: Management............................................................................. 215
Chapter 26
Maintenance .......................................................................................................................... 217
26.1 The Maintenance Screen .............................................................................................. 217
26.2 Load Factory Default ...................................................................................................... 218
26.3 Save Configuration .......................................................................................................... 218
26.4 Reboot System ................................................................................................................ 219
26.5 Firmware Upgrade ........................................................................................................ 219
26.6 Restore a Configuration File ......................................................................................... 220
26.7 Backup a Configuration File ......................................................................................... 220
26.8 FTP Command Line ........................................................................................................ 221
26.8.1 Filename Conventions .......................................................................................... 221
26.8.2 FTP Command Line Procedure ............................................................................ 221
26.8.3 GUI-based FTP Clients .......................................................................................... 222
26.8.4 FTP Restrictions .................................................................................................... 222
Chapter 27
Access Control...................................................................................................................... 223
27.1 Access Control Overview ............................................................................................ 223
27.2 The Access Control Main Screen .................................................................................... 223
27.3 About SNMP .................................................................................................................. 224
27.3.1 SNMP v3 and Security ........................................................................................... 225
27.3.2 Supported MIBs ................................................................................................... 225
27.3.3 SNMP Traps .......................................................................................................... 225
27.3.4 Configuring SNMP ................................................................................................ 228
27.3.5 Configuring SNMP Trap Group ........................................................................... 230
27.3.6 Setting Up Login Accounts ................................................................................. 231
27.4 SSH Overview ................................................................................................................. 233
27.5 How SSH works ............................................................................................................... 233