# Sample udhcpd configuration file (/etc/udhcpd.conf) # Values shown are defaults # The start and end of the IP lease block start 192.168.0.20 end 192.168.0.254 # The interface that udhcpd will use interface eth0 # The maximum number of leases (includes addresses reserved # by OFFER's, DECLINE's, and ARP conflicts). Will be corrected # if it's bigger than IP lease block, but it ok to make it # smaller than lease block. #max_leases 254 # The amount of time that an IP will be reserved (leased to nobody) # if a DHCP decline message is received (seconds) #decline_time 3600 # The amount of time that an IP will be reserved # if an ARP conflict occurs (seconds) #conflict_time 3600 # How long an offered address is reserved (seconds) #offer_time 60 # If client asks for lease below this value, it will be rounded up # to this value (seconds) #min_lease 60 # The location of the pid file #pidfile /var/run/udhcpd.pid # The location of the leases file #lease_file /var/lib/misc/udhcpd.leases # The time period at which udhcpd will write out leases file. # If this is 0, udhcpd will never automatically write leases file. # Specified in seconds. #auto_time 7200 # Every time udhcpd writes a leases file, the below script will be called #notify_file # default: no script #notify_file dumpleases # useful for debugging # The following are BOOTP specific options # next server to use in bootstrap #siaddr 192.168.0.22 # default: 0.0.0.0 (none) # tftp server name #sname zorak # default: none # tftp file to download (e.g. kernel image) #boot_file /var/nfs_root # default: none # NOTE: "boot_file FILE" and "opt bootfile FILE" are conceptually the same, # but "boot_file" goes into BOOTP-defined fixed-size field in the packet, # whereas "opt bootfile" goes into DHCP option 0x43. # Same for "sname HOST" and "opt tftp HOST". # Static leases map #static_lease 00:60:08:11:CE:4E 192.168.0.54 #static_lease 00:60:08:11:CE:3E 192.168.0.44 optional_hostname # The remainder of options are DHCP options and can be specified with the # keyword 'opt' or 'option'. If an option can take multiple items, such # as the dns option, they can be listed on the same line, or multiple # lines. # Examples: opt dns 192.168.10.2 192.168.10.10 option subnet 255.255.255.0 opt router 192.168.10.2 opt wins 192.168.10.10 option dns 129.219.13.81 # appended to above DNS servers for a total of 3 option domain local option lease 864000 # default: 10 days option msstaticroutes 10.0.0.0/8 10.127.0.1 # single static route option staticroutes 10.0.0.0/8 10.127.0.1, 10.11.12.0/24 10.11.12.1 # Arbitrary option in hex or string form: option 0x08 01020304 # option 8: "cookie server IP addr: 1.2.3.4" option 14 "dumpfile" # Currently supported options [hex option value] (for more info, see options.c): #opt lease NUM # [0x33] #opt subnet IP # [0x01] #opt broadcast IP # [0x1c] #opt router IP_LIST # [0x03] #opt ipttl NUM # [0x17] #opt mtu NUM # [0x1a] #opt hostname STRING # [0x0c] client's hostname #opt domain STRING # [0x0f] client's domain suffix #opt search STRING_LIST # [0x77] search domains #opt nisdomain STRING # [0x28] #opt timezone NUM # [0x02] (localtime - UTC_time) in seconds. signed #opt tftp STRING # [0x42] tftp server name #opt bootfile STRING # [0x43] tftp file to download (e.g. kernel image) #opt bootsize NUM # [0x0d] size of that file #opt rootpath STRING # [0x11] (NFS) path to mount as root fs #opt wpad STRING # [0xfc] Web Proxy Auto Discovery Protocol #opt serverid IP # [0x36] default: server's IP #opt message STRING # [0x38] error message (udhcpd sends it on success too) #opt vlanid NUM # [0x84] 802.1P VLAN ID #opt vlanpriority NUM # [0x85] 802.1Q VLAN priority # RFC 5071: PXELINUX Options #opt 0xd0 F100747E # [0xd0] magic #opt pxeconffile STRING # [0xd1] #opt pxepathprefix STRING # [0xd2] #opt reboottime NUM # [0xd3] bootstrap timeout # Options specifying server(s) #opt dns IP_LIST # [0x06] #opt wins IP_LIST # [0x2c] #opt nissrv IP_LIST # [0x29] #opt ntpsrv IP_LIST # [0x2a] #opt lprsrv IP_LIST # [0x09] #opt swapsrv IP # [0x10] # Options specifying routes #opt routes IP_PAIR_LIST # [0x21] #opt staticroutes STATIC_ROUTES # [0x79] RFC 3442 classless static route option #opt msstaticroutes STATIC_ROUTES # [0xf9] same, using MS option number # Obsolete options, no longer supported #opt logsrv IP_LIST # [0x07] 704/UDP log server (not syslog!) #opt namesrv IP_LIST # [0x05] IEN 116 name server, obsolete (August 1979!!!) #opt cookiesrv IP_LIST # [0x08] RFC 865 "quote of the day" server, rarely (never?) used #opt timesrv IP_LIST # [0x04] RFC 868 time server, rarely (never?) used # TODO: in development #opt userclass STRING # [0x4d] RFC 3004. set of LASCII strings. "I am a printer" etc #opt sipsrv STRING LIST # [0x78] RFC 3361. flag byte, then: 0: domain names, 1: IP addrs #opt ip6rd .... # [0xd4] IPv6 rapid deployment