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3Com Switch 8800 Configuration Guide Table of Contents
TOC-4
Chapter 13 DHCP Configuration................................................................................................ 13-1
13.1 Introduction to DHCP.....................................................................................................13-1
13.1.1 How DHCP Works............................................................................................... 13-1
13.2 Configuring General DHCP ........................................................................................... 13-3
13.2.1 Enabling/Disabling DHCP Service...................................................................... 13-4
13.2.2 Configuring Processing Method of DHCP Packets.............................................13-4
13.2.3 Enabling/Disabling Fake DHCP Server Detection ..............................................13-5
13.3 Configuring DHCP Server.............................................................................................. 13-6
13.3.1 Creating a Global DHCP IP Address Pool.......................................................... 13-6
13.3.2 Configuring IP Address Assignment Mode ......................................................... 13-7
13.3.3 Forbidding Specified IP Addresses to Be Automatically Assigned..................... 13-9
13.3.4 Configuring Lease Time For DHCP Address Pool............................................ 13-10
13.3.5 Configuring DHCP Client Domain Names ........................................................ 13-11
13.3.6 Configuring DNS Server Address for DHCP Clients......................................... 13-12
13.3.7 Configuring NetBIOS Server Address for DHCP Clients ..................................13-13
13.3.8 Configuring NetBIOS Node Type for DHCP Clients ......................................... 13-15
13.3.9 Configuring Custom DHCP Options.................................................................. 13-16
13.3.10 Configuring Outbound Gateway Address for DHCP Clients...........................13-17
13.3.11 Configuring Parameters for DHCP Server to Send Ping Packets .................. 13-17
13.3.12 Displaying and Debugging the DHCP Server .................................................13-18
13.3.13 Clearing the Configuration Information of the DHCP Server .......................... 13-19
13.3.14 DHCP Server Configuration Example............................................................. 13-19
13.4 Configuring DHCP Relay............................................................................................. 13-21
13.4.1 Introduction to DHCP Relay.............................................................................. 13-21
13.4.2 Configuring DHCP Relay .................................................................................. 13-22
13.4.3 Displaying and Debugging DHCP Relay........................................................... 13-23
13.4.4 DHCP Relay Configuration Example ................................................................ 13-24
Chapter 14 DNS Configuration................................................................................................... 14-1
14.1 Introduction to DNS .......................................................................................................14-1
14.1.1 Static Domain Name Resolution ......................................................................... 14-1
14.1.2 Dynamic Domain Name Resolution.................................................................... 14-1
14.2 Configuring Static Domain Name Resolution ................................................................ 14-2
14.3 Configuring Dynamic Domain Name Resolution ........................................................... 14-2
14.3.1 Enable/Disable Static Domain Name Resolution................................................ 14-2
14.3.2 Configure the IP Address of Domain Name Server ............................................14-3
14.3.3 Configure Domain Name Suffix........................................................................... 14-3
14.4 Displaying and Debugging Domain Name Resolution................................................... 14-4
14.5 DNS Configuration Example.......................................................................................... 14-4
14.6 Troubleshooting Domain Name Resolution Configuration ............................................ 14-5
Chapter 15 IP Performance Configuration................................................................................ 15-1
15.1 Configuring IP Performance .......................................................................................... 15-1
15.1.1 Configuring TCP Attributes ................................................................................. 15-1