HP 5500 Ei 5500 Si Switch Series Configuration Guide

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Creating a DHCP address pool 
When creating a DHCP address pool, specify it as a common address pool or an extended address 
pool. 
A common address pool and an extended address pool are different in address allocation mode 
configuration. Configurations of other parameters (such as the domain name suffix and DNS server 
address) for them are the same. 
To create a DHCP address pool: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Create a DHCP address pool 
and enter its...

 40 
•  If the interfaces on a DHCP client share the same MAC address, you must specify the client ID, 
rather than MAC address, in a static binding to id entify the requesting interface; otherwise, the 
client may fail to obtain an IP address. 
To configure a static binding in a common address pool: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter common address pool 
view.  dhcp server ip-pool
 pool-name  N/A 
3.  Specify the IP address.  static-bind ip-address
 ip-address...

 41 
Step Command Remarks 
4.  Specify the IP address range 
on the subnet for dynamic 
allocation.  network ip range 
min-address 
max-address   Optional. 
Not specified by default.  
5.
  Specify the address lease 
duration.  expired 
{ day  day  [ hour  hour 
[ minute  minute ] [ second  
second  ] ] | unlimited  }  Optional. 
One day by default. 
6.
  Return to system view. 
quit  N/A 
7.  Exclude IP addresses from 
automatic allocation.  dhcp server forbidden-ip 
low-ip-address [ high-ip-address
 ]...

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Configuring a domain name suffix for the client 
You can specify a domain name suffix in each DHCP address pool on the DHCP server to provide the 
clients with the domain name suffix. With this suffix assigned, the client only needs to input part of a 
domain name, and the system will add the domain name  suffix for name resolution. For more information 
about DNS, see Configuring IPv4 DNS. 
To configure a domain name suffix in the DHCP address pool: 
 
Step Command Remarks 
1.   Enter system view....

 43 
To configure WINS servers and NetBIOS node type in the DHCP address pool:  
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter DHCP address pool 
view.  dhcp server ip-pool
 pool-name  
[ extended  ]  N/A 
3.
  Specify WINS server IP 
addresses.  nbns-list
 ip-address & Optional for b-node. 
No address is specified by default. 
4.
  Specify the NetBIOS node 
type.  netbios-type
 { b-node | h-node  
|  m-node  | p-node  }  Not specified by default. 
 
Configuring BIMS server...

 44 
Configuring Option 184 parameters for the client with voice 
service 
To assign voice calling parameters along with an IP address to DHCP clients with voice service, you must 
configure Option 184 on the DHCP server. For more information about Option 184, see  DHCP 
ove

rview .  
To configure option 184 parameters in the DHCP address pool: 
 
Step Command Remarks 
1.   Enter system view. 
system-view N/A 
2.  Enter DHCP address pool view.  dhcp server ip-pool
 pool-name  
[ extended  ]  N/A 
3....

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Step Command Remarks 
2.  Enter DHCP address pool 
view.  dhcp server ip-pool
 pool-name  [ extended  ] N/A 
3.  Specify the IP address or 
name of the TFTP server. 
• Specify the TFTP server:  
tftp-server ip-address  ip-address 
•  Specify the name of the TFTP server:  
tftp-server domain-name  domain-name
 
Use either command. 
Not specified by default. 
4.   Specify the bootfile name. 
bootfile-name bootfile-name   Not specified by default. 
 
Specifying a server’s IP address for the DHCP client...

 46 
Step Command Remarks 
3.  Configure a self-defined 
DHCP option.  option 
code { ascii  ascii-string  | 
hex  hex-string & | 
ip-address  ip-address& } No DHCP option is configured by 
default. 
 
Table 2
 Description of common options 
O
ption Option name  Corresponding command Command parameter 
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...

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interface (connecting to the client). If the address pool contains no assignable IP address, the 
server assigns an IP address from an address pool that resides on the same subnet as the 
secondary IP addresses of the server interface.  If the interface has multiple secondary IP 
addresses, each address pool is tried in turn for address allocation. If the interface has no 
secondary IP addresses, the server is unable to assign an IP address to the client. 
{  Without the keyword  subaddress...

 48 
Configuring the DHCP server security functions 
Configuration prerequisites 
Before you configure the DHCP server security functions, complete the following tasks on the DHCP 
server: 
•  Enable DHCP. 
•   Configure the DHCP address pool. 
Enabling unauthorized DHCP server detection 
Unauthorized DHCP servers on a network may assign wrong IP addresses to DHCP clients. 
With unauthorized DHCP server detection enabled, the DHCP server checks whether a DHCP request 
contains Option 54 (Server...