Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 103)

• 006 - domain name server
• 012 - hostname (optional)
• 066 - TFTP server name (only used for Client-Based Auto Configuration)
• 067 - bootfile name
• 150 - TFTP server IP address (private option, datatype = IP Address)
Configuration notes for DHCP servers
• When using DHCP on a router, if you have a DHCP address for one interface, and you want to
connect to the DHCP server from another interface, you must disable DHCP on the first interface,
then enable DHCP on the second interface.
• When DHCP is disabled, and then re-enabled, or if the system is rebooted, the TFTP process
requires approximately three minutes to run in the background before file images can be downloaded
manually.
• Once a port is assigned a leased IP address, it is bound by the terms of the lease regardless of the
link state of the port.
Disabling or re-enabling Auto-Configuration
For a switch, you can disable or enable this feature using the following commands.
device(config)# ip dhcp-client enable
device(config)# no ip dhcp-client enable
For a router, you can disable or enable this feature using the following commands.
device(config-if-e1000-0/1/1)# ip dhcp-client enable
device(config-if-e1000-0/1/1)# no ip dhcp-client enable
Syntax: [no] ip dhcp-client enable
Disabling or re-enabling Auto-Update
Auto-update is enabled by default. To disable it, use the following command.
device(config)# no ip dhcp-client auto-update enabled
To re-enable auto-update after it has been disabled, use the following command.
device(config)# ip dhcp-client auto-update enabled
Syntax:no ip dhcp-client auto-update enabled
Displaying DHCP configuration information
The following example shows output from the show ip command for Layer 2 devices.
device(config)# show ip
Switch IP address: 10.44.16.116
Subnet mask: 255.255.255.0
Default router address: 10.44.16.1
TFTP server address: 10.44.16.41
Configuration filename: foundry.cfg
Image filename: None
Configuration notes for DHCP servers
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