H3c-technologies H3C S12500 Series Switches User Manual Page 53
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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40
Ste
p
Command
Remarks
2. Enter DHCP address pool
view.
dhcp server ip-pool pool-name N/A
3. Configure a self-defined
DHCP option.
option code { ascii ascii-string | hex
hex-string | ip-address
ip-address&<1-8> }
By default, no self-defined DHCP
option is configured.
Table 2 Common DHCP options
Option Option name
Corresponding
command
Recommended option
command
p
arameters
3 Router Option gateway-list ip-address
6 Domain Name Server Option dns-list ip-address
15 Domain Name domain-name ascii
44
NetBIOS over TCP/IP Name
Server Option
nbns-list ip-address
46
NetBIOS over TCP/IP Node
Type Option
netbios-type hex
66 TFTP server name tftp-server ascii
67 Boot file name bootfile-name ascii
43 Vendor Specific Information N/A hex
51B
Enabling DHCP
You must enable DHCP to validate other DHCP configurations.
To enable DHCP:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enable DHCP.
dhcp enable By default, DHCP is disabled.
52B
Enabling the DHCP server on an interface
Perform this task to enable the DHCP server on an interface. Upon receiving a DHCP request on the
interface, the DHCP server assigns an IP address and other configuration parameters from the DHCP
address pool to the DHCP client.
To enable the DHCP server on an interface:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type interface-number N/A
- Preface 3
- GUI conventions 4
- Symbols 4
- Network topology icons 4
- Port numbering in examples 4
- Obtaining documentation 5
- Technical support 6
- Documentation feedback 6
- Contents 7
- Configuring ARP 14
- ARP table 15
- Dynamic ARP entry 16
- Static ARP entry 16
- # Display ARP information 22
- Configuring gratuitous ARP 23
- Configuring proxy ARP 26
- Configuring ARP snooping 29
- Configuring IP addressing 30
- Special IP addresses 31
- Subnetting and masking 31
- 172.16.1.0/24 33
- 172.16.2.0/24 33
- DHCP overview 35
- IP address lease extension 36
- DHCP message format 37
- DHCP options 38
- 1. Format of Option 43: 39
- Configuring the DHCP server 42
- Creating a DHCP address pool 45
- 690HOption 184." 52
- Network requirement 60
- Enabling DHCP 65
- Configuring Option 82 68
- Configuring DHCP snooping 72
- 713HRelay 73
- Saving DHCP snooping entries 76
- Configuring DNS 81
- DNS proxy 82
- DNS spoofing 83
- DNS configuration task list 84
- Configuring the DNS proxy 85
- Configuring DNS spoofing 85
- Configuring DDNS 93
- Configuring a DDNS policy 94
- Displaying DDNS 97
- DDNS configuration examples 97
- DDNS configuration example 2 98
- FIB table 100
- Displaying FIB table entries 100
- Task Command 101
- Configuring adjacency table 102
- Optimizing IP performance 104
- Configuration example 105
- Enabling TCP SYN Cookie 107
- Configuring TCP timers 108
- Enabling ICMP flow control 110
- Step Command Remarks 111
- Configuring UDP helper 113
- Network requirements 114
- Configuration procedure 114
- Verifying the configuration 115
- Overview 116
- IPv6 addresses 117
- IPv6 address types 118
- Unicast addresses 118
- Multicast addresses 119
- IPv6 ND protocol 120
- Duplicate address detection 121
- IPv6 transition technologies 122
- Protocols and standards 123
- EUI-64 IPv6 address 125
- Manual configuration 125
- Configuring IPv6 ND 127
- Setting the hop limit 128
- Symptom 141
- Solution 141
- DHCPv6 overview 142
- Address/prefix lease renewal 143
- Stateless DHCPv6 144
- Concepts 146
- DHCPv6 address pool 147
- Configuration task list 148
- Configuration guidelines 150
- Configuration considerations 154
- DHCPv6 server 158
- DHCPv6 relay agent 158
- DHCPv6 client DHCPv6 client 158
- DHCPv6 clientDHCPv6 client 158
- Configuring fast forwarding 165
- Configuring tunneling 168
- Tunnel types 169
- Switch A Switch B 173
- IPv6 manual tunnel 173
- Configuring a 6to4 tunnel 177
- Configuring an ISATAP tunnel 181
- Analysis 185
- Configuring GRE 186
- GRE application scenarios 187
- Device A Device B 188
- Device A 188
- Device B Device C 188
- Device D 188
- Host A Host B 188
- Configuration prerequisites 190
- 1. Configure Switch A: 192
- 2. Configure Switch B: 192
- Troubleshooting GRE 194
- 956H15 8 197
- 957H101 197
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