Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 103)

Brocade ICX 6650 Layer 3 Routing Configuration Guide 85
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Configuring IP parameters – Layer 3 Switches
1. When the device reboots, or the Auto-Configuration feature has been disabled and then
re-enabled, the device uses information from the DHCP server to contact the TFTP server to
update the running-configuration file:
• If the DHCP server provides a TFTP server name or IP address, the device uses this
information to request files from the TFTP server.
• If the DHCP server does not provide a TFTP server name or IP address, the device requests
the configuration files from the DHCP server.
2. The device requests the configuration files from the TFTP server by asking for filenames in the
following order:
• bootfile name provided by the DHCP server (if configured)
• hostnameMAC-config.cfg, for example:
ICX6650-64-Router0000.008f.23b7-config.cfg
• hostnameMAC.cfg, for example:
ICX6650-64-Router0000.008f.23b7.cfg
• brocade.cfg (applies to all devices), for example:
brocade.cfg
• <icx6650> -<switch | router>.cfg (applies to Layer 2 or base Layer 3 devices), for example:
icx6650-router.cfg (Brcd6650 Layer 2)
icx6650-router.cfg (Brcd6650 Layer 3)
If the device is successful in contacting the TFTP server and the server has the configuration
file, the files are merged. If there is a conflict, the server file takes precedence.
If the device is unable to contact the TFTP server or if the files are not found on the server, the
TFTP part of the configuration download process ends.
Supported options for DHCP Servers
DHCP Client supports the following options:
• 001 - subnetmask
• 003 - router ip
• 015 - domain name
• 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.