Troubleshoot

Error 1

pptp 720 error

Fix 1

C:\>netsh int ip reset >> resetIP.log

P.S.

移除所有使用者設定的設定(IP, GW).

您必須重新啟動電腦，預設值才會生效.

Error 2

  => iOS hotspot 不支援 pptp passthrough

Server Side 已經

• modprobe nf_conntrack_pptp
• modprobe nf_conntrack_proto_gre

Jul 30 10:09:25 EAST daemon.info pptpd[28305]: CTRL: Client C.C.C.C control connection started
Jul 30 10:09:25 EAST daemon.info pptpd[28305]: CTRL: Starting call (launching pppd, opening GRE)
Jul 30 10:09:25 EAST daemon.notice pppd[28306]: pppd 2.4.5 started by root, uid 0
Jul 30 10:09:25 EAST daemon.debug pppd[28306]: using channel 3036
Jul 30 10:09:25 EAST daemon.info pppd[28306]: Using interface ppp4
Jul 30 10:09:25 EAST daemon.notice pppd[28306]: Connect: ppp4 <--> /dev/pts/1
Jul 30 10:09:25 EAST daemon.debug pppd[28306]: sent [LCP ConfReq id=0x1 <mru 1450> <asyncmap 0x0> <auth chap MS-v2> <magic 0x955376c1> <pcomp> <accomp>]
Jul 30 10:09:28 EAST daemon.debug pppd[28306]: sent [LCP ConfReq id=0x1 <mru 1450> <asyncmap 0x0> <auth chap MS-v2> <magic 0x955376c1> <pcomp> <accomp>]
....
Jul 30 10:09:55 EAST daemon.warn pppd[28306]: LCP: timeout sending Config-Requests
Jul 30 10:09:55 EAST daemon.notice pppd[28306]: Connection terminated.
Jul 30 10:09:55 EAST daemon.notice pppd[28306]: Modem hangup
Jul 30 10:09:55 EAST daemon.info pppd[28306]: Exit.
Jul 30 10:09:55 EAST daemon.err pptpd[28305]: GRE: read(fd=6,buffer=4218ec,len=8196) from PTY failed: 
    status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
Jul 30 10:09:55 EAST daemon.err pptpd[28305]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Jul 30 10:09:55 EAST daemon.debug pptpd[28305]: CTRL: Reaping child PPP[28306]
Jul 30 10:09:55 EAST daemon.info pptpd[28305]: CTRL: Client C.C.C.C control connection finished

詳見

http://datahunter.org/openwrt_pptp

http://datahunter.org/pptp_client

http://datahunter.org/pptp_server

http://datahunter.org/dd-wrt_pptp

http://datahunter.org/openvz_pptp