请教一个拨号上网的问题

  我所要做的系统  linux 内核是 2.2.12-1.  当我用wvdial 拨号时，前面过程一切正常。   但是当
（结果是当wvdial 送出用户名以后，服务器再也没有 密码输入提示，怎么办啊）
  login:
->send 163

->Don't know what to do!  Starting pppd and hoping for the best.
--> Starting pppd at Thu Jan  1 00:13:07 1970
Jan  1 00:13:07 (none) modprobe: Note: /etc/modules.conf is more recent than /li
b/modules/2.2.12-1/modules.dep
Jan  1 00:13:07 (none) modprobe: modprobe:registered device ppp0
Can't locate module char-major-108
Jan  1 00:13:07 (none) modprobe: Note: /etc/modules.conf is more recent than /li
b/modules/2.2.12-1/modules.dep
Jan  1 00:13:07 (none) modprobe: modprobe: Can't locate module ppp0
Jan  1 00:13:07 (none) pppd[38]: pppd 2.3.10 started by root, uid 0
Jan  1 00:13:08 (none) pppd[38]: Using interface ppp0
Jan  1 00:13:08 (none) pppd[38]: Connect: ppp0 <--> /dev/ttyS1
Jan  1 00:13:08 (none) pppd[38]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic
0x8e612ebb> <pcomp> <accomp>]
Jan  1 00:13:29 (none) last message repeated 7 times
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic
0x8e612ebb> <pcomp> <accomp>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfNak id=0x1 <magic 0x2dcdec36>]
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfNak id=0x1 <magic 0x2dcdec36>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfReq id=0x2 <asyncmap 0x0> <magic
0x60a43326> <pcomp> <accomp>]
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <magic
0x60a43326> <pcomp> <accomp>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfNak id=0x2 <magic 0xc1b9bca1>]
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfNak id=0x2 <magic 0xc1b9bca1>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfReq id=0x3 <asyncmap 0x0> <magic
0x99168a66> <pcomp> <accomp>]
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfReq id=0x3 <asyncmap 0x0> <magic
0x99168a66> <pcomp> <accomp>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfNak id=0x3 <magic 0x434b32ea>]
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfNak id=0x3 <magic 0x434b32ea>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfReq id=0x4 <asyncmap 0x0> <magic
0xec9e7a0c> <pcomp> <accomp>]
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfReq id=0x4 <asyncmap 0x0> <magic
0xec9e7a0c> <pcomp> <accomp>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfNak id=0x4 <magic 0x99932d96>]
Jan  1 00:13:29 (none) pppd[38]: rcvd [LCP ConfNak id=0x4 <magic 0x99932d96>]
Jan  1 00:13:29 (none) pppd[38]: sent [LCP ConfReq id=0x5 <asyncmap 0x0> <magic
0xb0366002> <pcomp> <accomp>]
Jan  1 00:13:30 (none) pppd[38]: rcvd [LCP ConfReq id=0x5 <asyncmap 0x0> <magic
0xb0366002> <pcomp> <accomp>]
Jan  1 00:13:30 (none) pppd[38]: sent [LCP ConfNak id=0x5 <magic 0x75f67bd>]
Jan  1 00:13:30 (none) pppd[38]: rcvd [LCP ConfNak id=0x5 <magic 0x75f67bd>]
Jan  1 00:13:30 (none) pppd[38]: sent [LCP ConfReq id=0x6 <asyncmap 0x0> <magic
0xa0ce9b3f> <pcomp> <accomp>]
Jan  1 00:13:30 (none) pppd[38]: rcvd [LCP ConfReq id=0x6 <asyncmap 0x0> <magic
0xa0ce9b3f> <pcomp> <accomp>]
Jan  1 00:13:30 (none) pppd[38]: sent [LCP ConfNak id=0x6 <magic 0x10eecd54>]
Jan  1 00:13:30 (none) pppd[38]: rcvd [LCP ConfNak id=0x6 <magic 0x10eecd54>]
Jan  1 00:13:30 (none) pppd[38]: sent [LCP ConfReq id=0x7 <asyncmap 0x0> <magic
0xfb4425d0> <pcomp> <accomp>]
Jan  1 00:13:30 (none) pppd[38]: rcvd [LCP ConfReq id=0x7 <asyncmap 0x0> <magic
0xfb4425d0> <pcomp> <accomp>]
Jan  1 00:13:30 (none) pppd[38]: sent [LCP ConfNak id=0x7 <magic 0xb0120ca3>]
Jan  1 00:13:30 (none) pppd[38]: rcvd [LCP ConfNak id=0x7 <magic 0xb0120ca3>]
Jan  1 00:13:30 (none) pppd[38]: sent [LCP ConfReq id=0x8 <asyncmap 0x0> <magic
0x5fb13615> <pcomp> <accomp>]
Jan  1 00:13:31 (none) pppd[38]: rcvd [LCP ConfReq id=0x8 <asyncmap 0x0> <magic
0x5fb13615> <pcomp> <accomp>]
Jan  1 00:13:31 (none) pppd[38]: sent [LCP ConfNak id=0x8 <magic 0xa1057b87>]
Jan  1 00:13:31 (none) pppd[38]: rcvd [LCP ConfNak id=0x8 <magic 0xa1057b87>]
Jan  1 00:13:31 (none) pppd[38]: sent [LCP ConfReq id=0x9 <asyncmap 0x0> <magic
0x458413b0> <pcomp> <accomp>]
Jan  1 00:13:31 (none) pppd[38]: rcvd [LCP ConfReq id=0x9 <asyncmap 0x0> <magic
0x458413b0> <pcomp> <accomp>]
Jan  1 00:13:31 (none) pppd[38]: sent [LCP ConfNak id=0x9 <magic 0x3106caf7>]
Jan  1 00:13:31 (none) pppd[38]: rcvd [LCP ConfNak id=0x9 <magic 0x3106caf7>]
Jan  1 00:13:31 (none) pppd[38]: sent [LCP ConfReq id=0xa <asyncmap 0x0> <magic
0x31b8d2e2> <pcomp> <accomp>]
Jan  1 00:13:31 (none) pppd[38]: rcvd [LCP ConfReq id=0xa <asyncmap 0x0> <magic
0x31b8d2e2> <pcomp> <accomp>]
Jan  1 00:13:31 (none) pppd[38]: sent [LCP ConfNak id=0xa <magic 0x3b18c1a7>]
Jan  1 00:13:31 (none) pppd[38]: rcvd [LCP ConfNak id=0xa <magic 0x3b18c1a7>]
Jan  1 00:13:31 (none) pppd[38]: Serial line is looped back.
Jan  1 00:13:31 (none) pppd[38]: sent [LCP TermReq id=0xb "Loopback detected"]
Jan  1 00:13:32 (none) pppd[38]: rcvd [LCP TermReq id=0xb "Loopback detected"]
Jan  1 00:13:32 (none) pppd[38]: sent [LCP TermAck id=0xb]
Jan  1 00:13:32 (none) pppd[38]: rcvd [LCP TermAck id=0xb]
Jan  1 00:13:32 (none) pppd[38]: Connection terminated.
Jan  1 00:13:32 (none) pppd[38]: Exit.
--> PPP daemon has died! (exit code = 17)
--> Disconnecting at Thu Jan  1 00:13:32 1970
--> Auto Reconnect will be attempted in 5 seconds
--> pppd error!  Look at files in /var/log for an explanation.
--> Initializing modem.
--> Sending: ATZ
ATZ