2 Replies Latest reply on Mar 7, 2010 2:21 PM by rcamm

    Issue with PPTP server

      G'day,

       

      Having issue with PPTP server here.

      PPTP server configured with Strong encryption and MS-CHAPv2. Users authenticated against Radius (SBS 2003)

       

      When I try to dial got below in a syslog and error 619 in Windows

       

      Mar 7 00:51:46 last message repeated 1 time(s) Mar 7 00:51:46 pptpd[27841]: CTRL: Client **.***.***.** control connection started Mar 7 00:51:46 pptpd[27841]: CTRL: Starting call (launching pppd, opening GRE) Mar 7 00:51:46 pppd[27842]: Plugin radius loaded. Mar 7 00:51:46 pppd[27842]: RADIUS plugin initialized. Mar  7 00:51:46 pppd[27842]: pppd 2.4.4 started by root, uid 0 
      Mar 7 00:51:46 pppd[27842]: using channel 3 Mar 7 00:51:46 pppd[27842]: Using interface ppp0 Mar 7 00:51:46 pppd[27842]: Connect: ppp0 <--> /dev/pts/0 Mar 7 00:51:46 pppd[27842]: sent [LCP ConfReq id=0x1 <mru 1400> <asyncmap 0x0> <auth chap MS-v2> <magic 0xf2b05089> <pcomp> <accomp>] Mar  7 00:51:46 pptpd[27841]: GRE: Bad checksum from pppd. 
      Mar 7 00:51:49 pppd[27842]: sent [LCP ConfReq id=0x1 <mru 1400> <asyncmap 0x0> <auth chap MS-v2> <magic 0xf2b05089> <pcomp> <accomp>] Mar 7 00:52:16 last message repeated 8 time(s) Mar 7 00:52:16 pppd[27842]: LCP: timeout sending Config-Requests Mar  7 00:52:16 pppd[27842]: Connection terminated. 
      Mar 7 00:52:16 pppd[27842]: Modem hangup Mar  7 00:52:16 pppd[27842]: Exit. 
      Mar 7 00:52:16 pptpd[27841]: GRE: read(fd=7,buffer=1fb10,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs Mar 7 00:52:16 pptpd[27841]: CTRL: PTY read or GRE write failed (pty,gre)=(7,8) Mar 7 00:52:16 pptpd[27841]: CTRL: Reaping child PPP[27842] Mar 7 00:52:16 pptpd[27841]: CTRL: Client **.***.***.** control connection finished Mar  7 00:52:16 pptpd[27841]: CTRL: Couldn't write packet to client. 
      

      Shouldnt be any issues with this pc, because I can dial to other Snapgears no problems. This particular is 560U with 4.0.6 installed.

       

      Is anyone had something similar? Please let me know of any solution

       

      Thank you in advance

        • 1. Re: Issue with PPTP server
          Mar 7 00:52:16 pppd[27842]: LCP: timeout sending Config-Requests

          this means that there is no resonse getting back to the UTM in regard to the GER packets it is sending.

          KB62307 will explain
          1 of 1 people found this helpful
          • 2. Re: Issue with PPTP server

            Hi Ross,

             

            Reading this KB got me thinking and I found the problem and it is all working now. This customer has /29 connection and all the addresses setup as aliases. So I was dialing to one of the aliases. Once I've change pptp client to dial to direct IP on the interface it start working straight away.

             

            Thanks

             

             

            Message was edited by: ozslon on 8/03/10 10:18:10 AM