Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 89)

Brocade ICX 6650 Layer 3 Routing Configuration Guide 71
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Configuring IP parameters – Layer 3 Switches
Configuring DHCP Server on a device
Perform the following steps to configure the DHCP Server feature on your device:
1. Enable DHCP Server by entering a command similar to the following.
Brocade(config)# ip dhcp-server enable
2. Create a DHCP Server address pool by entering a command similar to the following.
Brocade(config)# ip dhcp-server pool cabo
3. Configure the DHCP Server address pool by entering commands similar to the following.
Brocade(config-dhcp-cabo)# network 192.168.1.0/24
Brocade(config-dhcp-cabo)# domain-name brocade.com
Brocade(config-dhcp-cabo)# dns-server 192.168.1.2 192.168.1.3
Brocade(config-dhcp-cabo)# netbios-name-server 192.168.1.2
Brocade(config-dhcp-cabo)# lease 0 0 5
4. To disable DHCP, enter a command similar to the following.
Brocade(config)# no ip dhcp-server enable
The following sections describe the default DHCP settings, CLI commands and the options you can
configure for the DHCP Server feature.
Default DHCP Server settings
Table 7 shows the default DHCP Server settings.
DHCP Server CLI commands
Table 8 described DHCP Server optional parameters command.
TABLE 7 DHCP server default settings
Parameter Default Value
DHCP server Disabled
Lease database expiration time 86400 seconds
The duration of the lease for an assigned IP address 43200 seconds (one day)
Maximum lease database expiration time 86400 seconds
DHCP server with option 82 Disabled
DHCP server unknown circuit-ID for Option 82 Permit range lookup
IP distribution mechanism Linear
TABLE 8 DHCP Server optional parameters command
Command Description
dbexpire
Specifies how long, in seconds, the DHCP server should wait before
aborting a database transfer
option domain-name
Specifies the domain name for the DHCP clients.
option
domain-nameservers
Specifies the Domain Name System (DNS) IP servers that are
available to the DHCP clients.