核心系統是linux(非uclinux)
2410有一個網卡eth0(外網)
我另裝上一個usb有線網卡作為eth1來當dhcp伺服器
第一次啟動dhcp，eth1的網卡ip是設定成192.168.2.1(在/etc/rc.d/rc.inet1.conf改)確定動起來後，dhcp設定檔如上語法:# Sample udhcpd configuration file (/etc/udhcpd.conf) # The start and end of the IP lease block start 192.168.2.2 #default: 192.168.0.20 end 192.168.2.254 #default: 192.168.0.254 # The interface that udhcpd will use interface eth1 #default: eth0 # The maximim number of leases (includes addressesd reserved # by OFFER's, DECLINE's, and ARP conficts #max_leases 101 #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 /usr/local/etc/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 # <--- usefull 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 192.168.2.1 option subnet 255.255.255.0 opt router 192.168.2.1 #opt wins 192.168.2.1 #option dns 192.168.2.1 168.95.1.1 168.95.192.1 # appened to above DNS servers for a total of 3 #option domain local #option lease 864000 # 10 days of seconds ###static_lease 08:08:08:08:27:12 192.168.104.104 # Currently supported options, for more info, see options.c #opt subnet #opt timezone #opt router #opt timesvr #opt namesvr #opt dns #opt logsvr #opt cookiesvr #opt lprsvr #opt bootsize #opt domain #opt swapsvr #opt rootpath #opt ipttl #opt mtu #opt broadcast #opt wins #opt lease #opt ntpsrv #opt tftp #opt bootfile
我的dhcp啟動指令是/usr/sbin/udhcpd -fS /usr/local/etc/udhcpd.eth1.conf
ok~~dhcp功能可以正常配給WINXP電腦網卡(IP和DNS都設定自動取得)得到192.168.2.2
目前很正常
問題來了
我現在把eth1網卡ip是設定成192.168.3.1(在/etc/rc.d/rc.inet1.conf改)，/etc/rc.d/rc.inet1 restart確定動起來後，dhcp設定檔把192.168.2.....都改成了192.168.3.....
我先關掉dhcp指令是killall udhcpd，/etc/rc.d/rc.inet1 restart確定動起來後，然後一樣啟動dhcp指令是/usr/sbin/udhcpd -fS /usr/local/etc/udhcpd.eth1.conf
但在winxp電腦網卡(IP和DNS都設定自動取得)按右鍵選"修復"卻不能得到192.168.3.2~192.168.3.254的IP，而是出現Windows無法完成修復這個問題， : 因為無法完成下列動作：更新您的IP位址
而我試過一些ip分享器產品或adsl數據機開dhcp功能可以修復成功得到ip說，所以覺得是不是哪裡有問題?
而且發現如果真要得到ip，要把開發版手動撥開關重開機(不能reboot)，或是在winxp電腦網卡按右鍵停用=>啟用，以上兩種方法可以取得ip
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作者：tvirus
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