/etc/udhcpd.conf is in udhcpd 1:1.22.0-9+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | # Sample udhcpd configuration file (/etc/udhcpd.conf)
# The start and end of the IP lease block
start 192.168.0.20 #default: 192.168.0.20
end 192.168.0.254 #default: 192.168.0.254
# The interface that udhcpd will use
interface eth0 #default: eth0
# The maximim number of leases (includes addressesd reserved
# by OFFER's, DECLINE's, and ARP conficts
#max_leases 254 #default: 254
# If remaining is true (default), udhcpd will store the time
# remaining for each lease in the udhcpd leases file. This is
# for embedded systems that cannot keep time between reboots.
# If you set remaining to no, the absolute time that the lease
# expires at will be stored in the dhcpd.leases file.
#remaining yes #default: yes
# The time period at which udhcpd will write out a dhcpd.leases
# file. If this is 0, udhcpd will never automatically write a
# lease file. (specified in seconds)
#auto_time 7200 #default: 7200 (2 hours)
# The amount of time that an IP will be reserved (leased) for if a
# DHCP decline message is received (seconds).
#decline_time 3600 #default: 3600 (1 hour)
# The amount of time that an IP will be reserved (leased) for if an
# ARP conflct occurs. (seconds
#conflict_time 3600 #default: 3600 (1 hour)
# How long an offered address is reserved (leased) in seconds
#offer_time 60 #default: 60 (1 minute)
# If a lease to be given is below this value, the full lease time is
# instead used (seconds).
#min_lease 60 #defult: 60
# The location of the leases file
#lease_file /var/lib/misc/udhcpd.leases #defualt: /var/lib/misc/udhcpd.leases
# The location of the pid file
#pidfile /var/run/udhcpd.pid #default: /var/run/udhcpd.pid
# Everytime udhcpd writes a leases file, the below script will be called.
# Useful for writing the lease file to flash every few hours.
#notify_file #default: (no script)
#notify_file dumpleases # <--- useful for debugging
# The following are bootp specific options, setable by udhcpd.
#siaddr 192.168.0.22 #default: 0.0.0.0
#sname zorak #default: (none)
#boot_file /var/nfs_root #default: (none)
# The remainer of options are DHCP options and can be specifed 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. The only option with a default is 'lease'.
#Examles
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 # appened to above DNS servers for a total of 3
option domain local
option lease 864000 # 10 days of seconds
# Currently supported options, for more info, see options.c
#opt subnet
#opt timezone
#opt router
#opt timesrv
#opt namesrv
#opt dns
#opt logsrv
#opt cookiesrv
#opt lprsrv
#opt bootsize
#opt domain
#opt swapsrv
#opt rootpath
#opt ipttl
#opt mtu
#opt broadcast
#opt wins
#opt lease
#opt ntpsrv
#opt tftp
#opt bootfile
#opt wpad
# 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
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