DM500接GPRS工业模块，在DCC中pppd call gprs-siem命令后  
 
root@dreambox:/var/etc/ppp/peers> pppd call gprs-siem  
AT  
OK  
ATZ  
AT+CGDCONT=1,"ip","cmnet"  
OK  
ATD*99***1#  
CONNECT  
Serial connection established.  
using channel 16  
Using interface ppp0  
Connect: ppp0 <--> /dev/tts/0  
 
到该步骤都正常，然后  
 
rcvd [LCP ConfReq id=0x2 <mru 1600> <auth pap> <magic 0xc3c65c9> <asyncmap 0x0>  
<pcomp> <accomp>]  
Warning - secret file /etc/ppp/pap-secrets has world and/or group access  
sent [LCP ConfReq id=0x1 <asyncmap 0x20a0000> <magic 0xf4b8ac98> <pcomp> <accom  
>]  
sent [LCP ConfAck id=0x2 <mru 1600> <auth pap> <magic 0xc3c65c9> <asyncmap 0x0>  
<pcomp> <accomp>]  
由于太多，只好截屏，DCC中的复制文字功能不是很好用  
看样子像是某个位的确认包没有收到导致连接初始化失败，是不是因为波特率、串口传输方式设置的问题？看看大家有谁遇到过这种情况，给指点指点吧，谢谢  
 
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