How2 set up a dhcp server
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1. Suse Linux Professional 9.0
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1.1 check with yast2 if dhcp server software (1.96MB) is installed:
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dhcp-server ISC (Internet Software Consortium) DHCP server (804KB)
dhcp Common files used by ISC DHCP software (1.13MB)
dhcp-tools dhcping and dhcpdump (52KB)

1.2 configure dhcp server through /etc/dhcpd.conf and /etc/sysconfig/dhcpd
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In /etc/sysconfig/dhcpd set DHCPD_INTERFACE to the interface to
listen on for incoming dhcp requests.

--------- example /etc/dhcpd.conf file start -----------------------
# dhcpd.conf
#
# configuration file for ISC dhcpd for diskless Linux systems

pid-file-name "/var/run/dhcpd.pid";
allow booting;
allow bootp;
ddns-update-style none;
ddns-updates off;
authoritative;
log-facility local7;

subnet 172.20.1.0 netmask 255.255.255.0 { }

# Group the PXE bootable hosts together
group {
        host dwarf1 {
                hardware ethernet 0:0D:87:9F:F2:F1;
                fixed-address 172.20.1.33;
        }
        host dwarf2 {
                hardware ethernet 0:0D:87:B2:01:25;
                fixed-address 172.20.1.34;
        }
        host dwarf3 {
                hardware ethernet 0:0D:87:C2:2C:CA;
                fixed-address 172.20.1.35;
        }
        host toshi {
                hardware ethernet 0:00:39:55:11:8F;
                fixed-address 172.20.1.41;
        }
        host ss51 {
                hardware ethernet 0:30:1B:AB:24:F9;
                fixed-address 172.20.1.2;
        }
}
--------- example /etc/dhcpd.conf file end -----------------------


1.3. start the dhcpd server:
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	linux:/etc # /etc/init.d/dhcpd start
	Starting DHCP server [chroot]

1.4. test the dhcpd server:
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        linux:~ # dhcping -h 0:0c:29:76:81:9f -v -s 172.20.1.10
        Got answer from 172.20.1.10