Dell Force10 S4820T S4820T Configuration Guide - Page 257

Following is an example of a configuration of the DHCP server included on the most popular Linux distributions. The dhcpd.conf file shows assignment of a fixed IP address and configuration file based on the MAC address of the switch. Parameter Example option boot-filename code 67 = text; option tftp-server-address code 150 = ip-address; option config-file code 209 = text; subnet 10.20.30.0 netmask 255.255.255.0 { option domain-name-servers 20.30.40.1, 20.30.40.2; Description host S4810-1 { BMP 2.0 Syntax hardware ethernet 00:01:e8:8c:4d:0e; fixed-address 10.20.30.41; MAC to IP mapping option boot-filename "tftp://10.20.4.1/FTOS-SE-8.3.10.1.bin"; FTOS image option config-file "http://10.20.4.1/S4810-1.conf"; Config file } host S4810-2 { hardware ethernet 00:01:e8:8c:4c:04; fixed-address 10.20.30.42; option tftp-server-address 10.20.4.1; filename "FTOS-SE-8.3.10.1.bin"; option config-file "S4810-2.conf"; } BMP1.0 syntax MAC to IP mapping FTOS image Config file DHCP Retry Mechanism BMP will request a different DHCP offer in the following scenarios: • If the command reload-type config-download is enabled, the DHCP offer specifies both the boot image and the configuration file, and either download is successful, BMP will not request another DHCP offer. • If the offer contains only a boot image that cannot be downloaded, BMP will request another DHCP offer. • If the command reload-type config-download is enabled and the configuration file in the offer cannot be downloaded, BMP will request another DHCP offer. DHCP Server IP Blacklist If the process does not complete successfully, the DHCP server IP will be blacklisted and the DHCP process will be re-initiated. A DHCP server is maintained in the blacklist for ten minutes. If a DHCP offer is received from the blacklisted DHCP server, the offer will be rejected. Bare Metal Provisioning 2.0 | 257