21ic电子技术开发论坛 › 综合技术交流 › 通信技术 › mc39i+redhat9下拨号成功，返回了ip,但ping不通外网，是 ...
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mc39i+redhat9下拨号成功，返回了ip,但ping不通外网，是何原因？

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 楼主| liuyixing 发表于 2008-8-26 20:30 | 显示全部楼层 |阅读模式
redhat, ip, pi, ST, Local
运行ppp-on脚本后<br />通过命令cat&nbsp;/var/log/messages查看系统信息如下：&nbsp;<br />Aug&nbsp;25&nbsp;20:30:28&nbsp;localhost&nbsp;pppd[18563]:&nbsp;pppd&nbsp;2.4.1&nbsp;started&nbsp;by&nbsp;root,&nbsp;uid&nbsp;0&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;timeout&nbsp;set&nbsp;to&nbsp;3&nbsp;seconds&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;abort&nbsp;on&nbsp;(\nBUSY\r)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;abort&nbsp;on&nbsp;(\nNO&nbsp;ANSWER\r)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;abort&nbsp;on&nbsp;(\nRINGING\r\n\r\nRINGING\r)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;send&nbsp;(rAT^M)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;expect&nbsp;(OK)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;AT^M^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;OK&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;&nbsp;--&nbsp;got&nbsp;it&nbsp;<br />Aug&nbsp;25&nbsp;20:30:29&nbsp;localhost&nbsp;chat[18564]:&nbsp;send&nbsp;(ATH0^M)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;timeout&nbsp;set&nbsp;to&nbsp;30&nbsp;seconds&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;expect&nbsp;(OK)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;ATH0^M^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;OK&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;&nbsp;--&nbsp;got&nbsp;it&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;send&nbsp;(AT+IPR=38400^M)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;expect&nbsp;(OK)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;AT+IPR=38400^M^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;OK&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;&nbsp;--&nbsp;got&nbsp;it&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;send&nbsp;(AT+CGDCONT=1,IP,CMNET^M)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;expect&nbsp;(OK)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;AT+CGDCONT=1,IP,CMNET^M^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;OK&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;&nbsp;--&nbsp;got&nbsp;it&nbsp;<br />Aug&nbsp;25&nbsp;20:30:30&nbsp;localhost&nbsp;chat[18564]:&nbsp;send&nbsp;(AT+CGACT=1,1^M)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:31&nbsp;localhost&nbsp;chat[18564]:&nbsp;expect&nbsp;(OK)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:31&nbsp;localhost&nbsp;chat[18564]:&nbsp;^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:31&nbsp;localhost&nbsp;chat[18564]:&nbsp;AT+CGACT=1,1^M^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:31&nbsp;localhost&nbsp;chat[18564]:&nbsp;OK&nbsp;<br />Aug&nbsp;25&nbsp;20:30:31&nbsp;localhost&nbsp;chat[18564]:&nbsp;&nbsp;--&nbsp;got&nbsp;it&nbsp;<br />Aug&nbsp;25&nbsp;20:30:31&nbsp;localhost&nbsp;chat[18564]:&nbsp;send&nbsp;(ATDT*99***1#^M)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:32&nbsp;localhost&nbsp;chat[18564]:&nbsp;expect&nbsp;(CONNECT)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:32&nbsp;localhost&nbsp;chat[18564]:&nbsp;^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:33&nbsp;localhost&nbsp;chat[18564]:&nbsp;ATDT*99***1#^M^M&nbsp;<br />Aug&nbsp;25&nbsp;20:30:33&nbsp;localhost&nbsp;chat[18564]:&nbsp;CONNECT&nbsp;<br />Aug&nbsp;25&nbsp;20:30:33&nbsp;localhost&nbsp;chat[18564]:&nbsp;&nbsp;--&nbsp;got&nbsp;it&nbsp;<br />Aug&nbsp;25&nbsp;20:30:33&nbsp;localhost&nbsp;chat[18564]:&nbsp;send&nbsp;(^M)&nbsp;<br />Aug&nbsp;25&nbsp;20:30:33&nbsp;localhost&nbsp;pppd[18563]:&nbsp;Serial&nbsp;connection&nbsp;established.&nbsp;<br />Aug&nbsp;25&nbsp;20:30:33&nbsp;localhost&nbsp;pppd[18563]:&nbsp;Using&nbsp;interface&nbsp;ppp0&nbsp;<br />Aug&nbsp;25&nbsp;20:30:33&nbsp;localhost&nbsp;pppd[18563]:&nbsp;Connect:&nbsp;ppp0&nbsp;&lt--&gt&nbsp;/dev/ttyS0&nbsp;<br />Aug&nbsp;25&nbsp;20:30:35&nbsp;localhost&nbsp;modprobe:&nbsp;modprobe:&nbsp;Can't&nbsp;locate&nbsp;module&nbsp;ppp-compress-21&nbsp;<br />Aug&nbsp;25&nbsp;20:30:35&nbsp;localhost&nbsp;modprobe:&nbsp;modprobe:&nbsp;Can't&nbsp;locate&nbsp;module&nbsp;ppp-compress-21&nbsp;<br />Aug&nbsp;25&nbsp;20:30:36&nbsp;localhost&nbsp;pppd[18563]:&nbsp;not&nbsp;replacing&nbsp;existing&nbsp;default&nbsp;route&nbsp;to&nbsp;eth0&nbsp;[192.168.73.1]&nbsp;<br />Aug&nbsp;25&nbsp;20:30:36&nbsp;localhost&nbsp;pppd[18563]:&nbsp;local&nbsp;&nbsp;IP&nbsp;address&nbsp;10.127.189.237&nbsp;<br />Aug&nbsp;25&nbsp;20:30:36&nbsp;localhost&nbsp;pppd[18563]:&nbsp;remote&nbsp;IP&nbsp;address&nbsp;192.168.254.254&nbsp;<br />最后两行是不是说明已经连上GPRS网络了，192.168.254.254是不是网关，为什么ping&nbsp;192.168.254.254&nbsp;ping不通&nbsp;，外网也ping不通10.127.189.237？<br /><br />请大虾们赐教！<br /><br /><br />
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liuzc77 发表于 2008-8-29 21:37 | 显示全部楼层

能上网不就行了

10.127.189.237&nbsp;一看就是内网地址，外网怎么能ping通，<br />192.168.254.254是网关，但他不允许ping
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