3. Congure the DHCP server address pool by entering commands similar to the following.
device(config-dhcp-cabo)# network 172.16.1.0/24
device(config-dhcp-cabo)# domain-name brocade.com
device(config-dhcp-cabo)# dns-server 172.16.1.2 172.16.1.3
device(config-dhcp-cabo)# netbios-name-server 172.16.1.2
device(config-dhcp-cabo)# lease 0 0 5
4. To disable DHCP, enter a command similar to the following.
device(config)# no ip dhcp-server enable
The following sections describe the default DHCP settings, CLI commands and the options you can
congure for the DHCP
server feature.
Default DHCP server settings
TABLE 9 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
DHCP server CLI commands
TABLE 10 DHCP server optional parameters
Command options Description
domain-name Species the domain name for the DHCP clients.
domain-name-servers Species the Domain Name System (DNS) IP servers that are available to
the DHCP clients.
merit-dump Species the path name of a le into which the client’s core image should
be placed in the event that the client crashes (the DHCP application issues
an exception in case of errors such as division by zero).
root-path Species the name of the path that contains the client’s root lesystem in
NFS notation.
router Adds the default router and gateway for the DHCP clients.
subnet-mask Denes the subnet mask for the network.
broadcast-address Denes a broadcast address for the network.
wins-server Denes the NetBIOS Windows Internet Naming Service (WINS) name
servers that are available to Microsoft DHCP clients.
log-servers Denes a list of log servers available to the client.
bootstrap-server Species the IP address of the bootstrap server (the command lls the
"siaddr" eld in the DHCP packet).
Conguring IP parameters - Layer 3 switches
FastIron Ethernet Switch Layer 3 Routing
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