配置udhcpd

1、修改/etc/init.d/rcS

      创建udhcpd.leases文件

      

mkdir -p /var/lib/misctouch /var/lib/misc/udhcpd.leases

2、配置udhcpd.conf

# Sample udhcpd configuration file (/etc/udhcpd.conf)# The start and end of the IP lease blockstart192.168.2.2#default: 192.168.0.20end192.168.2.254#default: 192.168.0.254# The interface that udhcpd will useinterfacera0#default: eth0# The maximim number of leases (includes addressesd reserved# by OFFER's, DECLINE's, and ARP conficts#max_leases254#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.#remainingyes#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_time7200#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_time3600#default: 3600 (1 hour)# The amount of time that an IP will be reserved (leased) for if an# ARP conflct occurs. (seconds#conflict_time3600#default: 3600 (1 hour)# How long an offered address is reserved (leased) in seconds#offer_time60#default: 60 (1 minute)# If a lease to be given is below this value, the full lease time is# instead used (seconds).#min_lease60#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_filedumpleases# <--- useful for debugging# The following are bootp specific options, setable by udhcpd.#siaddr192.168.0.22#default: 0.0.0.0#snamezorak#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'.#Examlesoptdns192.168.2.1optionsubnet255.255.255.0optrouter192.168.2.1#optwins192.168.10.10#optiondns129.219.13.81# appened to above DNS servers for a total of 3optiondomainlocaloptionlease864000# 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# 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

3、运行udhcpd

# udhcpd -f /etc/udhcpd.conf &