np-network/orangepi/etc/dhcp/dhcpd.conf

#
# ISC dhcpd config file for NP 
#
#

# The ddns-updates-style parameter controls whether or not the server will
# attempt to do a DNS update when a lease is confirmed. We default to the
# behavior of the version 2 packages ('none', since DHCP v2 didn't
# have support for DDNS.)
ddns-update-style none;

# option definitions common to all supported networks...
option domain-name "np.sahajayoga.at";
option domain-name-servers 8.8.8.8, 8.8.4.4;

default-lease-time 600;
max-lease-time 7200;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
authoritative;

# Use this to send dhcp log messages to a different log file (you also
# have to hack syslog.conf to complete the redirection).
log-facility local7;

lease-file-name "/var/lib/dhcp/dhcpd.leases";

# np-technik Subnetz
subnet 10.21.0.0 netmask 255.255.255.0 {
        range 10.21.0.10 10.21.0.250;
	option broadcast-address 10.21.0.255;
	option routers 10.21.0.254;
	default-lease-time 3600;
	max-lease-time 10800;
	option domain-name "technik.np.sahajayoga.at";
	#option domain-name-servers 10.21.1.254;
	#interface "eth0.211";
}
# np-technik Subnetz
subnet 10.21.1.0 netmask 255.255.255.0 {
        range 10.21.1.10 10.21.1.250;
	option broadcast-address 10.21.1.255;
	option routers 10.21.1.254;
	default-lease-time 3600;
	max-lease-time 10800;
	option domain-name "technik.np.sahajayoga.at";
	#option domain-name-servers 10.21.1.254;
	#interface "eth0.211";
}
# np-media Subnetz
subnet 10.21.2.0 netmask 255.255.255.0 {
        range 10.21.2.20 10.21.2.250;
	option broadcast-address 10.21.2.255;
	option routers 10.21.2.254;
	default-lease-time 3600;
	max-lease-time 10800;
	option domain-name "media.np.sahajayoga.at";
	#option domain-name-servers 10.21.2.254;
	#interface "eth0.212";

	host streamingPC {
                hardware ethernet 00:26:c7:77:4a:62;
		fixed-address 10.21.2.160;
	}
}
# nirmalprasth Subnetz
subnet 10.21.4.0 netmask 255.255.254.0 {
        range 10.21.4.10 10.21.5.200;
	option broadcast-address 10.21.5.255;
	option routers 10.21.5.254;
	default-lease-time 3600;
	max-lease-time 10800;
	option domain-name "lan.np.sahajayoga.at";
	#option domain-name-servers 10.21.5.254;
	#interface "eth0.214";
	#next-server 10.21.4.2;
}
# Ashram Subnet
	subnet 10.0.0.0 netmask 255.255.255.0 {
		range 10.0.0.140 10.0.0.250;
		option broadcast-address 192.168.0.255;
		option routers 10.0.0.138;
		default-lease-time 3600;
		max-lease-time 10800;
		option domain-name "ashram.np.sahajayoga.at";
		#option domain-name-servers 10.0.0.254;
		#interface eth0.210;
		# only allow known clients
		# deny unknown-clients;
		# install ubuntu
		#filename "/pxelinux";

###############################################################################
#  Mac addresses of all collective items 
###############################################################################
		host router_anand {
                        hardware ethernet 58:6d:8f:a5:24:c1;
			fixed-address 10.0.0.240;
		}
		host a1modem {
                        hardware ethernet 38:22:9d:7b:b1:c5;
			fixed-address 10.0.0.138;
		}
		host npcoreswitch {
                        hardware ethernet 44:d9:e7:f5:50:7b;
			fixed-address 10.0.0.251;
		}
}

###############################################################################
#  Mac addresses of all devices from the ashramites
###############################################################################