Imagen de Gabriel_M
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... impresiona como correcto:

ddns-update-style interim;
authoritative;
one-lease-per-client on;
default-lease-time 1200;
max-lease-time 7200;
option domain-name "reduno.net";
option ntp-servers 0.pool.ntp.org, 1.pool.ntp.org, 2.pool.ntp.org, 3.pool.ntp.org;

shared-network redlocal1 {
	subnet 172.16.0.0 netmask 255.255.255.0 {
		option routers 172.16.0.1;
		option subnet-mask 255.255.255.0;
		option broadcast-address 172.16.0.255;
		option domain-name-servers 172.16.0.1;
		option netbios-name-servers 172.16.0.1;
		range 172.16.0.6 172.16.0.245;
       }

        host pc1 {
                option host-name "equipo1";
                hardware ethernet 15:A4:3F:44:55:7E;
                fixed-address 172.16.0.253;
       }
        host pc2 {
                option host-name "equipo2";
                hardware ethernet 42:B2:F5:42:6C:1D;
                fixed-address 172.16.0.254;
       }
        host impresora1 {
                option host-name "impresion1";
                hardware ethernet 42:B2:F5:42:6C:1D;
                fixed-address 172.16.0.2;
       }
        host impresora2 {
                option host-name "impresion2";
                hardware ethernet 33:B2:A4:22:1C:1C;
                fixed-address 172.16.0.3;
       }

shared-network redlocal2 {
       subnet 172.17.0.1 netmask 255.255.255.0 {
		option routers 172.17.0.1;
		option subnet-mask 255.255.255.0;
		option broadcast-address 172.17.0.255;
		option domain-name-servers 172.17.0.1;
		option netbios-name-servers 172.17.0.1;
		range 172.17.0.6 172.17.0.245;
       }
       host pc01 {
               option host-name "equipo01";
               hardware ethernet D3:D1:49:80:97:67;
               fixed-address 172.17.0.253;
       }
       host pc02 {
               option host-name "equipo02";
               hardware ethernet 88:48:74:3B:BA:C0;
               fixed-address 172.17.0.254;
       }
       host impresora01 {
       option host-name "impresion01";
       hardware ethernet 89:30:BC:52:4F:CB;
       fixed-address 172.17.0.2;
       }
       host impresora02 {
       option host-name "impresion02";
       hardware ethernet C1:7D:4E:D6:1D:8B;
       fixed-address 172.17.0.3;
       }

shared-network redlocal3 {
       subnet 192.168.0.1 netmask 255.255.255.0 {
		option routers 192.168.0.1;
		option subnet-mask 255.255.255.0;
		option broadcast-address 192.168.0.255;
		option domain-name-servers 192.168.0.1;
		option netbios-name-servers 192.168.0.1;
		range 192.168.0.6 192.168.0.245;
       }
        host pc001 {
                option host-name "equipo001";
                hardware ethernet D6:1F:1E:D7:1F:C6;
                fixed-address 192.168.0.253;
       }
        host pc002 {
                option host-name "equipo002";
                hardware ethernet BB:96:9F:FB:BB:71;
                fixed-address 192.168.3.254;
       }
        host impresora001 {
                option host-name "impresion01";
                hardware ethernet 30:30:FF:41:4D:AA;
                fixed-address 192.168.0.2;
       }
        host impresora002 {
                option host-name "impresion02";
                hardware ethernet CC:25:FF:A1:DD:EE;
                fixed-address 192.168.0.3;
       }
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