用pppd2.4.4拨号上网16300。将用户名发出后服务器接受但接收密码时没有了反应。写的ppp－on脚本和ppp－on－dialer及日志如下。
ppp－on脚本
TELEPHONE=0,16300 # The telephone number for the connection
ACCOUNT=16300 # The account name for **n (as in 'George Burns')
PASSWORD=16300 # The password for this account (and 'Gracie Allen')
LOCAL_IP=0.0.0.0 # Local IP address if known. Dynamic = 0.0.0.0
REMOTE_IP=0.0.0.0 # Remote IP address if desired. Normally 0.0.0.0
NETMASK=255.255.255.0 # The proper netmask if needed
exec /usr/sbin/pppd debug lock modem crtscts /dev/ttyS0 38400 \
asyncmap 20A0000 escape FF kdebug 0 $LOCAL_IP:$REMOTE_IP \
noipdefault netmask $NETMASK defaultroute connect $DIALER_SCRIPT
ppp－on－dialer脚本
exec chat -v \
TIMEOUT 3 \
ABORT '\nBUSY\r' \
ABORT '\nNO ANSWER\r' \
ABORT '\nRINGING\r\n\r\nRINGING\r' \
'' '\rAT L0' \
'OK-+++\c-OK' ATH0 \
TIMEOUT 30 \
OK ATDT$TELEPHONE \
CONNECT '' \
sername:--sername: $ACCOUNT \
assword: $PASSWORD
观察日志如下
Jan 11 19:14:22 localhost chat[30956]: send (ATDT0,16300^M)
Jan 11 19:14:22 localhost chat[30956]: expect (CONNECT)
Jan 11 19:14:22 localhost chat[30956]: ^M
Jan 11 19:14:33 localhost chat[30956]: ATDT0,16300^M^M
Jan 11 19:14:33 localhost chat[30956]: CONNECT
Jan 11 19:14:33 localhost chat[30956]: -- got it
Jan 11 19:14:33 localhost chat[30956]: send (^M)
Jan 11 19:14:33 localhost chat[30956]: expect (sername:)
Jan 11 19:14:33 localhost chat[30956]: 38400/V42BIS^M
Jan 11 19:14:33 localhost chat[30956]: ^M
Jan 11 19:14:33 localhost chat[30956]: ^M
Jan 11 19:14:33 localhost chat[30956]: *********************************^M
Jan 11 19:14:33 localhost chat[30956]: * Quidway A8010 Internet Server *^M
Jan 11 19:14:33 localhost chat[30956]: * welcome!! *^M
Jan 11 19:14:33 localhost chat[30956]: *********************************^M
Jan 11 19:14:33 localhost chat[30956]: please input username:
Jan 11 19:14:33 localhost chat[30956]: -- got it
Jan 11 19:14:33 localhost chat[30956]: send (16300^M)
Jan 11 19:14:33 localhost chat[30956]: expect (assword:)
Jan 11 19:15:03 localhost chat[30956]: alarm
Jan 11 19:15:03 localhost chat[30956]: Failed
Jan 11 19:15:03 localhost pppd[30955]: Connect script failed
Jan 11 19:15:04 localhost pppd[30955]: Exit.
由此可见chat一直没有等到输入密码的提示，但在minicom下是提示输入用户名和密码的。还有用**p是可以连接到16300的，这应该说明pppd应该没有问题了吧，有没有遇到这种情况的，已经郁闷3天了还没有解决。
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