請教udhcpd(DHCP伺服)在2410開發版

kalowt

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

1. # Sample udhcpd configuration file (/etc/udhcpd.conf)
   
2. 
   
3. # The start and end of the IP lease block
   
4. 
   
5. start                 192.168.2.2        #default: 192.168.0.20
   
6. end                192.168.2.254        #default: 192.168.0.254
   
7. 
   
8. 
   
9. # The interface that udhcpd will use
   
10. 
    
11. interface        eth1  #default: eth0
    
12. 
    
13. 
    
14. # The maximim number of leases (includes addressesd reserved
    
15. # by OFFER's, DECLINE's, and ARP conficts
    
16. 
    
17. #max_leases        101                #default: 254
    
18. 
    
19. 
    
20. # If remaining is true (default), udhcpd will store the time
    
21. # remaining for each lease in the udhcpd leases file. This is
    
22. # for embedded systems that cannot keep time between reboots.
    
23. # If you set remaining to no, the absolute time that the lease
    
24. # expires at will be stored in the dhcpd.leases file.
    
25. 
    
26. #remaining        yes                #default: yes
    
27. 
    
28. 
    
29. # The time period at which udhcpd will write out a dhcpd.leases
    
30. # file. If this is 0, udhcpd will never automatically write a
    
31. # lease file. (specified in seconds)
    
32. 
    
33. #auto_time        7200                #default: 7200 (2 hours)
    
34. 
    
35. 
    
36. # The amount of time that an IP will be reserved (leased) for if a
    
37. # DHCP decline message is received (seconds).
    
38. 
    
39. #decline_time        3600                #default: 3600 (1 hour)
    
40. 
    
41. 
    
42. # The amount of time that an IP will be reserved (leased) for if an
    
43. # ARP conflct occurs. (seconds
    
44. 
    
45. #conflict_time        3600                #default: 3600 (1 hour)
    
46. 
    
47. 
    
48. # How long an offered address is reserved (leased) in seconds
    
49. 
    
50. #offer_time        60                #default: 60 (1 minute)
    
51. 
    
52. # If a lease to be given is below this value, the full lease time is
    
53. # instead used (seconds).
    
54. 
    
55. #min_lease        60                #defult: 60
    
56. 
    
57. 
    
58. # The location of the leases file
    
59. 
    
60. lease_file        /usr/local/etc/udhcpd.leases        #defualt: /var/lib/misc/udhcpd.leases
    
61. 
    
62. # The location of the pid file
    
63. #pidfile        /var/run/udhcpd.pid        #default: /var/run/udhcpd.pid
    
64. 
    
65. # Everytime udhcpd writes a leases file, the below script will be called.
    
66. # Useful for writing the lease file to flash every few hours.
    
67. 
    
68. #notify_file                                #default: (no script)
    
69. 
    
70. #notify_file        dumpleases         # <--- usefull for debugging
    
71. 
    
72. # The following are bootp specific options, setable by udhcpd.
    
73. 
    
74. #siaddr                192.168.0.22                #default: 0.0.0.0
    
75. 
    
76. #sname                zorak                        #default: (none)
    
77. 
    
78. #boot_file        /var/nfs_root                #default: (none)
    
79. 
    
80. # The remainer of options are DHCP options and can be specifed with the
    
81. # keyword 'opt' or 'option'. If an option can take multiple items, such
    
82. # as the dns option, they can be listed on the same line, or multiple
    
83. # lines. The only option with a default is 'lease'.
    
84. 
    
85. #Examles
    
86. opt        dns        192.168.2.1
    
87. option        subnet        255.255.255.0
    
88. opt        router        192.168.2.1
    
89. #opt        wins        192.168.2.1
    
90. #option        dns        192.168.2.1 168.95.1.1 168.95.192.1        # appened to above DNS servers for a total of 3
    
91. #option        domain        local
    
92. #option        lease        864000                # 10 days of seconds
    
93. 
    
94. 
    
95. ###static_lease    08:08:08:08:27:12       192.168.104.104
    
96. 
    
97. # Currently supported options, for more info, see options.c
    
98. #opt subnet
    
99. #opt timezone
    
100. #opt router
     
101. #opt timesvr
     
102. #opt namesvr
     
103. #opt dns
     
104. #opt logsvr
     
105. #opt cookiesvr
     
106. #opt lprsvr
     
107. #opt bootsize
     
108. #opt domain
     
109. #opt swapsvr
     
110. #opt rootpath
     
111. #opt ipttl
     
112. #opt mtu
     
113. #opt broadcast
     
114. #opt wins
     
115. #opt lease
     
116. #opt ntpsrv
     
117. #opt tftp
     
118. #opt bootfile

复制代码

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
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

michaelyuan

果然是高手

hlwywhmr

档我想看看合适参考发

374533905

绝对的高手 我自己研究下