>>> 此貼的回復 >> 你可以試試把 /mnt/ppp/peers/gprs 裡的 usepeerdns 去掉，我以前是這麼試的，但是不知道為什麼
>>> 此貼的回復 >> 你試一下用這個命令 pppd debug /dev/ttyS3 115200 -detach crtscts defaultroute user card password card connect /usr/sbin/dialernew&
>>> 此貼的回復 >> 你的PPP撥號參數配置有問題或者沒有設置用戶名所致（見我下面/etc/options文件裡的說明），導致不能和PPP server端握手成功獲取local IP and server IP! 我3，4年前在一塊ARM板子上弄通過，由於嵌入式上很多要自己做，redhat上會更簡單，也更容易，如果做嵌入式，你應該先在PC上弄通，在移植到目標板上，大致給你說說，希望對你有所幫助 1. 配置kernel使它支持如下PPP選項： PPP(point-to-point) support PPP multilink support(EXPERIMENTAL) PPP support for async serial prots PPP support for sync tty ports PPP Deflate compression PPP BSD-Compress compression 2.編譯交叉編譯ppp-2.4.1，將./pppd/pppd, ,/chat/chat, ./pppdump/pppdump, ./pppstats/pppstats四個文件拷貝到嵌入式文件系統的/usr/sbin目錄下，並將他們的文件屬性改為755. 3.在嵌入式文件系統中： a、 建立一個ppp設備: mknod /dev/ppp c 108 0 並改變/etc/ppp文件夾的屬性：chmod 600 /etc/ppp. b、 編輯/etc/modules.conf文檔，增加一行： options ppp_async flag_time=0 c、 編輯/etc/resolv.conf，加入一行： nameserver 211.136.17.107(注釋：這是愛立信的GPRS域名解析服務器DNS地址，當時GPRS沒現在普及，為了這個地址狂打了幾天電信的技術支持，但很多support好水啊，不懂裝懂（借機損一下那些拿高工資又比較水的telecomer,嘿嘿，不要板磚拍我啊，怕怕的，我），最後終於問到一個帥哥，告訴了我這個。) d、 檢查/etc/host.conf腳本，確保有order hosts,bind 4.e、 /etc/ppp目錄下建立如下文件(這裡怎麼貼附件？真暈，要我挨個貼啊，辛苦是辛苦了點，好在今天心情好，就一並貼了吧，呵呵。為了好看清楚，每個文件用“#------#”分隔，各個它們都要有可執行權限哦)： #------------------------------------------------# # File: # /etc/ppp/gprs # # Description: # This file holds the serial cable and IrDA pppd options for GPRS phones
# Tell the ppp-daemon to accept mangled data receive-all
# Give some debug info debug kdebug 7
# Print out all the option values which have been set. dump
# Serial device to which terminal is connected; # with serial port (COM1 in Windows) use /dev/ttyS0 # and with IrDA use /dev/ircomm0. #/dev/ircomm0 # IrDA /dev/ttyAM1 # serial cable (NOTE: 這個地方你要改為真正的你用的串口，比如/dev/ttyS0)
# Serial port line speed 115200
# Turn off waiting of carrier detect or flow control signal # With IrDA it should be disabled with nocrtscts option. -crtscts # serial cable #nocrtscts # IrDA # Ignore carrier detect signal from the modem local
# To keep pppd on the terminal nodetach
# Accept the peer's idea of our local IP address ipcp-accept-local # Accept the peer's idea of its (remote) IP address ipcp-accept-remote
# IP addresses: # - accept peers idea of our local address and set address peer as 10.0.0.1 # (any address would do, since IPCP gives 0.0.0.0 to it) # - if you use the 10. network at home or something and pppd rejects it, # change the address to something else 0.0.0.0:0.0.0.0
-chap #-pap
# pppd must not propose any IP address to the peer! #noipdefault
# No ppp compression novj novjccomp
papcrypt nodeflate
#No ppp magic number nomagic
# no asyn cmap asyncmap 0
# Add default route defaultroute
# Connect script connect /etc/ppp/gprs-connect-chat
# Disconnect script disconnect /etc/ppp/gprs-disconnect-chat
#------------------------------------------------# # File: # /etc/ppp/options # receive-all nopcomp noaccomp nomagic debug # Mobile is connected to the first serial port /dev/ttyAM1 (NOTE: 這個地方你要改為真正的你用的串口，比如/dev/ttyS0) 115200 connect '/usr/sbin/chat -e -f /etc/ppp/gprs-connect-chat -v' disconnect '/usr/sbin/chat -e -f /etc/ppp/chat-disconnect -v' modem noauth noccp novj novjccomp defaultroute noipdefault user foo (NOTE：這個很重要，當時搞的我好痛苦，嘿嘿。windows下撥號可以不用用戶名，但Linux不行，所以我們騙linux一下，設一個假的好了，另外，還要參見/etc/pap-secrets，呵呵) lock
#------------------------------------------------# #!/bin/sh # # File: # /etc/ppp/chat-gprs-connect # # Description: # chat script to open Sonera GPRS service with GPRS phones. If ppp # negotiation stalls, try restarting the phone. To try with other GPRS # operator setting, change the PDP contex setting. The settings work with # all Ericsson models, but Nokia 8310 does not suppor QoS parameters with # AT commands, so just delete those lines and it'll work. # # Set PDP context CID=1, protocol=IP, APN=internet: # AT+CGDCONT=1,"IP","internet","",0,0 # # Set CID=1 QoS requirements from the network, not supported by 8310: # AT+CGQREQ=1,0,0,0,0,0 # # Set CID=1 minimum acceptable QoS parameters, not supported by 8310: # AT+CGQMIN=1,0,0,0,0,0 # # 'Call' CID=1 (activate PDP context one, perform GPRS attach): # ATD*99***1# # # ogin:-BREAK-ogin: \ # TIMEOUT 5 \ # assword: \ # SAY "\nLogged in OK...\n" \
# The actual chat script: exec chat \ TIMEOUT 5 \ ECHO ON \ ABORT '\nBUSY\r' \ ABORT '\nERROR\r' \ ABORT '\nNO ANSWER\r' \ ABORT '\nNO CARRIER\r' \ ABORT '\nNO DIALTONE\r' \ ABORT '\nRINGING\r\n\r\nRINGING\r' \ '' AT \ TIMEOUT 12 \ SAY "Press CTRL-C to close the connection at any stage!" \ SAY "\ndefining PDP context...\n" \ OK AT+CGATT? \ OK AT+CGATT=1 \ OK AT+CGATT? \ OK 'AT+CGDCONT=1,"IP"' \ OK AT+CGQREQ=1,0,0,3,0,0 \ OK AT+CGACT=1,1 \ OK ATDT*99***1# \ TIMEOUT 120 \ SAY "\nwaiting up to 2 mintues for connect...\n"\ CONNECT "" \ SAY "\nConnected. now logging in...\n" \ SAY "\nIf the following ppp negotiations fail,\n" \ SAY "try restarting the phone.\n" # NOTE: PDP context可能會因你的貓不同而有所區別，查它的手冊來寫吧
#------------------------------------------------#
#!/bin/sh # # File: # /etc/ppp/chat-gprs-disconnect # # send break exec /usr/sbin/chat -V -s -S \ ABORT "BUSY" \ ABORT "ERROR" \ ABORT "NO DIALTONE" \ SAY "\nSending break to the modem\n" \ "" "\K" \ "" "+++ATH" \ SAY "\nPDP context detached\n" #------------------------------------------------# # File: # /etc/ppp/chap-secrets # Secrets for authentication using CHAP # client server secret IP addresses ####### redhat-config-network will overwrite this part!!! (begin) ########## ####### redhat-config-network will overwrite this part!!! (end) ############ #------------------------------------------------# # File: #/etc/ppp/pap-secrets # Secrets for authentication using PAP # client server secret IP addresses ####### redhat-config-network will overwrite this part!!! (begin) ########## ####### redhat-config-network will overwrite this part!!! (end) ############ foo * "" * 剩下的文件就是那些關於ip-down，ip-up,ip-down.ipv6to4,ip-up.ipv6to4了，沒啥好說的了， 最後只有祝你good luck了
摘自：linuxforum.net
