RT-Thread-DHCP的问题？RT-Thread问答社区

DHCP的问题？

发布于 2012-04-07 00:40:52 浏览：10399 订阅该版

我参考stm32radio V4版自己做了一块板子，CPU和dm9000是一样的，
现在DHCP一直不成功，我把DHCP_DEBUG打开，重新编译，启动的打印信息如下：
```SystemInit......
CPU SN: 35FFD6053346343026871743

mem test pass!!

| /
- RT -     Thread Operating System
 / |  0.4.0 build Apr  6 2012
 2006 - 2011 Copyright by rt-thread team
sdcard init failed
SPI File System initialized!
SD File System init failed!
Unable to open GBK to Unicode look up table.
Unable to open Unicode to GBK look up table.
load_default!
Invalid LCD ID:00000000
Please check you hardware and configure.
 data bus test error: 0022 0022

rem_codes /resource/remote.txt open fail! fd:-1
The remote disbale.
please run rem_study()
rtc is not configured
please configure with set_date and set_time
Thu Jan  1 00:00:00 1970

dm9000 id: 0x90000a46
finsh>>operating at 100M full duplex mode
lwip_sanity_check: WARNING: TCP_SND_BUF must be at least as much as (2 * TCP_MSS) for things to work smoothly
dhcp_start(netif=6800480c) e00
dhcp_start(): starting new DHCP client
dhcp_start(): allocated dhcpdhcp_start(): starting DHCP configuration
dhcp_discover()
transaction id xid(abcd0001)
dhcp_discover: making request
dhcp_discover: realloc()ing
dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, DHCP_SERVER_PORT)
dhcp_discover: deleting()ing
dhcp_discover: SELECTING
dhcp_discover(): set request timeout 2000 msecs
dhcp_discover()
transaction id xid(abcd0002)
dhcp_discover: making request
dhcp_discover: realloc()ing
dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, DHCP_SERVER_PORT)
dhcp_discover: deleting()ing
dhcp_discover: SELECTING
dhcp_discover(): set request timeout 2000 msecs
TCP/IP initialized!
stat -> stopped
dhcp_recv(pbuf = 6800000c) from DHCP server 192.168.1.1 port 67
pbuf->len = 548
pbuf->tot_len = 548
transaction id mismatch reply_msg->xid(abcd0001)!=dhcp->xid(abcd0002)
dhcp_free_reply(): free'd
dhcp_recv(pbuf = 68000028) from DHCP server 192.168.1.1 port 67
pbuf->len = 548
pbuf->tot_len = 548
dhcp_free_reply(): free'd
dhcp_unfold_reply(): copied 240 bytes into dhcp->msg_in[]
dhcp_unfold_reply(): copied 308 bytes to dhcp->options_in[]
searching DHCP_OPTION_MESSAGE_TYPE
option found at offset 0 in options
option byte value=2
DHCP_OFFER received in DHCP_SELECTING state
skipping option 53 in options
option found at offset 3 in options
dhcp_handle_offer(netif=6800480c) e00
option long value=3232235777
dhcp_handle_offer(): server 0x0101a8c0
dhcp_handle_offer(): offer for 0x6801a8c0
dhcp_select(netif=6800480c) e00
transaction id xid(abcd0003)
dhcp_select: REQUESTING
dhcp_select(): set request timeout 2000 msecs
dhcp_free_reply(): free'd
dhcp_recv(pbuf = 68000028) from DHCP server 192.168.1.1 port 67
pbuf->len = 548
pbuf->tot_len = 548
dhcp_free_reply(): free'd
dhcp_unfold_reply(): copied 240 bytes into dhcp->msg_in[]
dhcp_unfold_reply(): copied 308 bytes to dhcp->options_in[]
searching DHCP_OPTION_MESSAGE_TYPE
option found at offset 0 in options
option byte value=5
DHCP_ACK received
skipping option 53 in options
skipping option 54 in options
skipping option 1 in options
option found at offset 15 in options
option long value=7200
skipping option 53 in options
skipping option 54 in options
skipping option 1 in options
skipping option 51 in options
overloaded message detected
skipping option 3 in options
skipping option 28 in options
skipping option 6 in options
overloaded sname and file field
skipping option 53 in options
skipping option 54 in options
skipping option 1 in options
skipping option 51 in options
overloaded message detected
skipping option 3 in options
skipping option 28 in options
skipping option 6 in options
overloaded sname and file field
skipping option 53 in options
skipping option 54 in options
option found at offset 9 in options
option long value=4294967040
skipping option 53 in options
skipping option 54 in options
skipping option 1 in options
skipping option 51 in options
overloaded message detected
option found at offset 24 in options
option long value=3232235777
skipping option 53 in options
skipping option 54 in options
skipping option 1 in options
skipping option 51 in options
overloaded message detected
skipping option 3 in options
option found at offset 30 in options
option long value=4294967295
skipping option 53 in options
skipping option 54 in options
skipping option 1 in options
skipping option 51 in options
overloaded message detected
skipping option 3 in options
skipping option 28 in options
option found at offset 36 in options
option byte value=8
option long value=1032520261
option long value=3657877643
dhcp_check(netif=6800480c) e0
dhcp_check(): set request timeout 500 msecs
dhcp_free_reply(): free'd

finsh>>dhcp_coarse_tmr()

finsh>>dhcp_coarse_tmr()
 
finsh>>list_if()
Default network interface: e0
MTU: 1500
MAC: 00 60 6e 30 26 87 
FLAGS: DOWN LINK_UP DHCP ETHARP
ip address: 0.0.0.0
gw address: 0.0.0.0
net mask  : 0.0.0.0
dns server: 61.139.2.69
        24, 0x00000018```

请忽略其他部分的初始化失败信息，我的板子上没有这些功能，还没裁剪，
我目前只关心网络功能，
抓包信息如下：
![11111111111.jpg](/uploads/1003_38c7bc95e2858ee9ad97cf5aca6684ae.jpg)
目前项目卡在这里，很是急迫，请大家不吝赐教！