Users Guide

DHCP Server IP Blacklist

If the process does not complete successfully, the DHCP server IP is blacklisted and the BMP process re-initiates.

A DHCP server IP is maintained in the blacklist for 10 minutes. If a DHCP oer is received from the blacklisted DHCP server, the oer is

rejected until the IP is alive in the blacklist (10 minutes).

MAC-Based Conguration

To congure the DHCP server to assign a xed IP address, Dell EMC Networking OS image, and conguration le based on the system’s

MAC address, use BMP mode.

Using BMP, the same IP address is assigned to the system even on repetitive reloads and the same conguration le is retrieved when

using the DNS server or the network-cong le to determine the hostname.

The assigned IP address is only used to retrieve the les from the le server. It is discarded after the les are retrieved.

Following is a conguration example of a DHCP server included on the most popular Linux distribution. The dhcpd.conf le shows that

the MAC-based IP and conguration le assignment are xed.

option configfile code 209=text;

option bootfile-name code 67=text;

host HOST1{

#####MAC to IP mapping

hardware ethernet 00:01:e8:8c:4d:0e;

fixed-address 30.0.0.20;

FTP URL with IP address

HTTP URL with DNS

TFTP

#####bootfile-name could be given in the following way

option bootfile-name “ftp://

admin:admin@Guest-1/Dell-SE-8.3.10.1.bin”;

option bootfile-name “http://30.0.0.1/

Dell-SE-8.3.10.1.bin”;

FTP URL with DNS

HTTP URL with IP address

TFTP URL with IP address

MAC-Based IP Address Assignment

To assign a xed IP address and conguration le based on the system’s MAC address, congure the DHCP server to deploy in BMP mode.

In this way, the same IP address is assigned and the same conguration le is retrieved when the switch reloads.

Using a dynamic IP address assignment may cause the desired conguration to not load on the system because the IP address changes

each time the system is reloaded.

Bare Metal Provisioning