pppd help!prob connecting to internet!

usien · 01-06-2007, 07:42 AM

i am new 2 linux nd i am using kubuntu 6.10.i can connect to the internet with wvdial from the terminal but i am having a problem with kppp.i am using a usb modem.after configuring kppp wen i connect everything goes rite till the status says 'logging 2 network' and then there is this error.basically it is an error 17 of pppd which says 'serial loopback detected'.here is the debug output:

Jan 6 18:29:08 usien-laptop pppd[5710]: pppd 2.4.4 started by usien, uid 1000
Jan 6 18:29:08 usien-laptop pppd[5710]: using channel 5
Jan 6 18:29:08 usien-laptop pppd[5710]: Using interface ppp0
Jan 6 18:29:08 usien-laptop pppd[5710]: Connect: ppp0 <--> /dev/ttyUSB0
Jan 6 18:29:08 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x840df5dd> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x840df5dd> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x840df5dd> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x1 <magic 0x5a885941>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x1 <magic 0x5a885941>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x2 <asyncmap 0x0> <magic 0xa98abede> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <magic 0xa98abede> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x2 <magic 0x951a24ad>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x2 <magic 0x951a24ad>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x3 <asyncmap 0x0> <magic 0xad4d001> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x3 <asyncmap 0x0> <magic 0xad4d001> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x3 <magic 0xef5012bf>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x3 <magic 0xef5012bf>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x4 <asyncmap 0x0> <magic 0x32a126d9> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x4 <asyncmap 0x0> <magic 0x32a126d9> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x4 <magic 0x5e414d41>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x4 <magic 0x5e414d41>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x5 <asyncmap 0x0> <magic 0x9c25f44> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x5 <asyncmap 0x0> <magic 0x9c25f44> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x5 <magic 0x102c133c>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x5 <magic 0x102c133c>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x6 <asyncmap 0x0> <magic 0xa7d199b3> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x6 <asyncmap 0x0> <magic 0xa7d199b3> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x6 <magic 0x507e38a3>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x6 <magic 0x507e38a3>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x7 <asyncmap 0x0> <magic 0xfe8f7c54> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x7 <asyncmap 0x0> <magic 0xfe8f7c54> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x7 <magic 0xd13a7140>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x7 <magic 0xd13a7140>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x8 <asyncmap 0x0> <magic 0x573557c8> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x8 <asyncmap 0x0> <magic 0x573557c8> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x8 <magic 0x9f3d0653>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x8 <magic 0x9f3d0653>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0x9 <asyncmap 0x0> <magic 0x97088c5e> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0x9 <asyncmap 0x0> <magic 0x97088c5e> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0x9 <magic 0xd12eb5bd>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0x9 <magic 0xd12eb5bd>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfReq id=0xa <asyncmap 0x0> <magic 0x15ff1ae6> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfReq id=0xa <asyncmap 0x0> <magic 0x15ff1ae6> <pcomp> <accomp>]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP ConfNak id=0xa <magic 0xab65cab0>]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP ConfNak id=0xa <magic 0xab65cab0>]
Jan 6 18:29:11 usien-laptop pppd[5710]: Serial line is looped back.
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP TermReq id=0xb "Loopback detected"]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP TermReq id=0xb "Loopback detected"]
Jan 6 18:29:11 usien-laptop pppd[5710]: sent [LCP TermAck id=0xb]
Jan 6 18:29:11 usien-laptop pppd[5710]: rcvd [LCP TermAck id=0xb]
Jan 6 18:29:11 usien-laptop pppd[5710]: Connection terminated.
Jan 6 18:29:11 usien-laptop pppd[5710]: Exit.

plz help.thanx

bastl · 01-06-2007, 10:29 AM

I also have an USB-modem and it is relayed to ttyS0.
In the kppp menu you have a sheet modems go there and test your modem with several interfaces listed there. To test an interface you can use the button, that says something like "ask modem" or "connect to modem" on the next sheet.
If you have found an interface create a link "modem" to it in /dev and use that link. Make sure you have access to that interface - your are in that group.