3 # Sample configuration file for ISC dhcpd
6 # option definitions common to all supported networks...
7 option domain-name "example.org";
8 option domain-name-servers ns1.example.org, ns2.example.org;
10 default-lease-time 600;
13 # If this DHCP server is the official DHCP server for the local
14 # network, the authoritative directive should be uncommented.
17 # Dynamic DNS update scheme - must be set to "none", "interim" or "ad-hoc".
18 ddns-update-style none;
20 # Use this to send dhcp log messages to a different log file (you also
21 # have to hack syslog.conf to complete the redirection).
24 # No service will be given on this subnet, but declaring it helps the
25 # DHCP server to understand the network topology.
27 subnet 10.152.187.0 netmask 255.255.255.0 {
30 # This is a very basic subnet declaration.
32 subnet 10.254.239.0 netmask 255.255.255.224 {
33 range 10.254.239.10 10.254.239.20;
34 option routers rtr-239-0-1.example.org, rtr-239-0-2.example.org;
37 # This declaration allows BOOTP clients to get dynamic addresses,
38 # which we don't really recommend.
40 subnet 10.254.239.32 netmask 255.255.255.224 {
41 range dynamic-bootp 10.254.239.40 10.254.239.60;
42 option broadcast-address 10.254.239.31;
43 option routers rtr-239-32-1.example.org;
46 # A slightly different configuration for an internal subnet.
47 subnet 10.5.5.0 netmask 255.255.255.224 {
48 range 10.5.5.26 10.5.5.30;
49 option domain-name-servers ns1.internal.example.org;
50 option domain-name "internal.example.org";
51 option routers 10.5.5.1;
52 option broadcast-address 10.5.5.31;
53 default-lease-time 600;
57 # Hosts which require special configuration options can be listed in
58 # host statements. If no address is specified, the address will be
59 # allocated dynamically (if possible), but the host-specific information
60 # will still come from the host declaration.
63 hardware ethernet 0:0:c0:5d:bd:95;
64 filename "vmunix.passacaglia";
65 server-name "toccata.fugue.com";
68 # Fixed IP addresses can also be specified for hosts. These addresses
69 # should not also be listed as being available for dynamic assignment.
70 # Hosts for which fixed IP addresses have been specified can boot using
71 # BOOTP or DHCP. Hosts for which no fixed address is specified can only
72 # be booted with DHCP, unless there is an address range on the subnet
73 # to which a BOOTP client is connected which has the dynamic-bootp flag
76 hardware ethernet 08:00:07:26:c0:a5;
77 fixed-address fantasia.fugue.com;
80 # You can declare a class of clients and then do address allocation
81 # based on that. The example below shows a case where all clients
82 # in a certain class get addresses on the 10.17.224/24 subnet, and all
83 # other clients get addresses on the 10.0.29/24 subnet.
86 match if substring (option vendor-class-identifier, 0, 4) = "SUNW";
89 shared-network 224-29 {
90 subnet 10.17.224.0 netmask 255.255.255.0 {
91 option routers rtr-224.example.org;
93 subnet 10.0.29.0 netmask 255.255.255.0 {
94 option routers rtr-29.example.org;
97 allow members of "foo";
98 range 10.17.224.10 10.17.224.250;
101 deny members of "foo";
102 range 10.0.29.10 10.0.29.230;