3com 5500-ei pwr Instrução De Instalação

 

2-28 

z 

The IP addresses of VLAN-interface 1 and VLAN-interface 2 on Switch A are 10.1.1.1/25 and 

10.1.1.129/25 respectively.  

z 

In the address pool 10.1.1.0/25, the address lease duration is ten days and twelve hours, domain 

name suffix aabbcc.com, DNS server address 10.1.1.2, gateway 10.1.1.126, and WINS server 

10.1.1.4. 

z 

In the address pool 10.1.1.128/25, the address lease duration is five days, domain name suffix 

aabbcc.com, DNS server address 10.1.1.2, and gateway address 10.1.1.254, and there is no 

WINS server address. 

 

If you use the inheriting relation of parent and child address pools, make sure that the number of the 

assigned IP addresses does not exceed the number of the IP addresses in the child address pool; 

otherwise extra IP addresses will be obtained from the parent address pool, and the attributes (for 

example, gateway) also are based on the configuration of the parent address pool.  

For example, in the network to which VLAN-interface 1 is connected, if multiple clients apply for IP 

addresses, the child address pool 10.1.1.0/25 assigns IP addresses first. When the IP addresses in the 

child address pool have been assigned, if other clients need IP addresses, the IP addresses will be 

assigned from the parent address pool 10.1.1.0/24 and the attributes will be based on the configuration 

of the parent address pool.  

For this example, the number of clients applying for IP addresses from VLAN-interface 1 is 

recommended to be less than or equal to 122 and the number of clients applying for IP addresses from 

VLAN-interface 2 is recommended to be less than or equal to 124.  

 

Figure 2-1 Network diagram for DHCP configuration 

 

 

1)  Configure a VLAN and add a port in this VLAN, and then configure the IP address of the VLAN 

interface (omitted). 

2)  Configure DHCP service. 

# Enable DHCP.