Installing and Administering Internet Services

266 Chapter6
Dynamic Host Configuration Protocol (DHCP)
Configuration Overview
through the BOOTP Relay Agent, see “Configuring a DHCP Server to
Distribute IP Addresses through a BOOTP Relay Agent” on page 271.
Configuring PING Timeouts
The DHCP server optionally sends a PING (ICMP echo) request to see if
the IP address it wants to assign to a client is in use or not. If the server
does not receive the reply in a specified time, the server assumes the IP
address is NOT in use. It then assigns that IP address to the client. The
specified time is the timeout value in milliseconds. The timeout value
can be set using the new option, “-p”.
The timeout value can be between 1 and 3000 milliseconds. By default,
the timeout value is 3000 milliseconds.
The value can be specified in the /etc/inetd.conf file:
# bootps dgram udp wait root /usr/lbin/bootpd -p500