Re: [gentoo-user] rfcomm0 interface missing
On Friday 06 Dec 2013 00:21:24 Daniel Frey wrote: On 12/05/2013 03:04 PM, Mick wrote: The connection bails out. I don't understand what the message Serial line is looped back. means. Any ideas? This usually means the host is just echoing everything back to the client. Most times this means the host is not starting the session or is waiting for something before it starts the session. Yes! It was my phone's way of telling me that whatever I was sending, it was not what it was expecting, echoing back the same information. So, I experimented with the relevant /etc/ppp/ip-up.d/45-mySIP_connect.sh by removing all entries but this: #!/bin/sh exec /usr/sbin/chat -v '' ATZ OK ATDT*99# CONNECT '' It now works! :-) = Dec 6 12:40:21 pppd[5644]: pppd 2.4.5 started by michael, uid 0 Dec 6 12:40:21 chat[5647]: send (ATZ^M) Dec 6 12:40:21 chat[5647]: expect (OK) Dec 6 12:40:21 chat[5647]: ATZ^M^M Dec 6 12:40:21 chat[5647]: OK Dec 6 12:40:21 chat[5647]: -- got it Dec 6 12:40:21 chat[5647]: send (ATDT*99#^M) Dec 6 12:40:21 chat[5647]: expect (CONNECT) Dec 6 12:40:21 chat[5647]: ^M Dec 6 12:40:23 chat[5647]: ATDT*99#^M^M Dec 6 12:40:23 chat[5647]: CONNECT Dec 6 12:40:23 chat[5647]: -- got it Dec 6 12:40:23 chat[5647]: send (^M) Dec 6 12:40:23 pppd[5644]: Serial connection established. Dec 6 12:40:23 pppd[5644]: Using interface ppp0 Dec 6 12:40:23 pppd[5644]: Connect: ppp0 -- /dev/rfcomm0 Dec 6 12:40:26 pppd[5644]: PAP authentication succeeded Dec 6 12:40:27 pppd[5644]: local IP address XX.XXX.XX.XX Dec 6 12:40:27 pppd[5644]: remote IP address XX.X.X.XX Dec 6 12:40:27 pppd[5644]: primary DNS address XXX.XX.XXX.X Dec 6 12:40:27 pppd[5644]: secondary DNS address XXX.XX.XXX.X Dec 6 12:40:27 chat[5652]: Can't get terminal parameters: Inappropriate ioctl for device = Not sure what the last error is. I suspect something to do with certain characters that need to be escaped in the terminal by bash? Grateful for any pointers. Otherwise, kppp still hangs being able to complete the connection. I have not been able to troublshoot that further. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] rfcomm0 interface missing
On Saturday 23 Nov 2013 12:35:35 Mick wrote: On Saturday 23 Nov 2013 11:44:58 Robin Atwood wrote: On Monday 18 November 2013, Mick wrote: After more than a year I tried to tether my mobile to my laptop to connect to GPRS using kppp. I noticed that kppp hangs and I have to kill it, while it hangs with Modem Ready. I can query the modem successfully using kppp, and it responds to ATI initialisation commands, so now I am trying to understand what is wrong with it and why the connection does not complete. ifconfig -a does not show rfcomm0, but this may be because it never completes the connection to my mobile phone provider's network, so the ppp link is not established. I can see that the rfcomm device is being created: # ls -la /dev/rfcomm* crw-rw 1 root uucp 216, 0 Nov 17 15:51 /dev/rfcomm0 and it does try to connect until it freezes showing Modem Ready, but I am getting no more errors to know what to do next. I was thinking that this may be related to the udev NIC renaming change that happened within the last year. However, I never had any udev rules to manage rfcomm and from what I recall vaguely when the udev update came, I had no problem connecting (but memory may be failing me after all this time). It could of course be related to my mobile phone providers settings - I haven't changed these for a long time and looking on the Internet I can't find if they are any different now. How should I troubleshoot this further? Could someone please hold my hand to set up ppp so that I can avoid kppp and its freezing behaviour? Have you started the rfcomm service? I remember having trouble until I did that. Thanks Robin, yes I started bluetooth and rfcomm as I used to do. I wonder if this is an ISP problem, i.e. they are no longer offering GPRS on this mobile phone account, or if I need a different login. I'll try again later to see if this is a temporary fault when I get a minute. I set up ppp but wasn't able to get anywhere: Dec 4 16:42:30 pppd[5167]: pppd 2.4.5 started by michael, uid 0 Dec 4 16:42:31 pppd[5167]: Serial connection established. Dec 4 16:42:31 pppd[5167]: Using interface ppp0 Dec 4 16:42:31 pppd[5167]: Connect: ppp0 -- /dev/rfcomm0 Dec 4 16:42:32 pppd[5167]: Serial line is looped back. Dec 4 16:42:32 pppd[5167]: Connection terminated. The connection bails out. I don't understand what the message Serial line is looped back. means. Any ideas? Anyway, after all that effort, I discovered that the ISP has decided to block tethering, because they are now peddling 4G services and want people to buy separate data accounts for tablets. Those of us who only occasionally need to use our mobile phone as a modem to get on the Internet are left without a service. :-( Would you know how the ISP's network equipment knows if the phone is connecting and sending GPRS packets on its own, or due to a PC initiating the connection? -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] rfcomm0 interface missing
On 12/05/2013 03:04 PM, Mick wrote: The connection bails out. I don't understand what the message Serial line is looped back. means. Any ideas? This usually means the host is just echoing everything back to the client. Most times this means the host is not starting the session or is waiting for something before it starts the session. This could very well be something to with your ISP blocking tethering. I can't really offer assistance otherwise, but figured I'd chime in because I've seen this message before. Dan
Re: [gentoo-user] rfcomm0 interface missing
On Monday 18 November 2013, Mick wrote: After more than a year I tried to tether my mobile to my laptop to connect to GPRS using kppp. I noticed that kppp hangs and I have to kill it, while it hangs with Modem Ready. I can query the modem successfully using kppp, and it responds to ATI initialisation commands, so now I am trying to understand what is wrong with it and why the connection does not complete. ifconfig -a does not show rfcomm0, but this may be because it never completes the connection to my mobile phone provider's network, so the ppp link is not established. I can see that the rfcomm device is being created: # ls -la /dev/rfcomm* crw-rw 1 root uucp 216, 0 Nov 17 15:51 /dev/rfcomm0 and it does try to connect until it freezes showing Modem Ready, but I am getting no more errors to know what to do next. I was thinking that this may be related to the udev NIC renaming change that happened within the last year. However, I never had any udev rules to manage rfcomm and from what I recall vaguely when the udev update came, I had no problem connecting (but memory may be failing me after all this time). It could of course be related to my mobile phone providers settings - I haven't changed these for a long time and looking on the Internet I can't find if they are any different now. How should I troubleshoot this further? Could someone please hold my hand to set up ppp so that I can avoid kppp and its freezing behaviour? Have you started the rfcomm service? I remember having trouble until I did that. HTH Robin -- -- Robin Atwood. Ship me somewheres east of Suez, where the best is like the worst, Where there ain't no Ten Commandments an' a man can raise a thirst from Mandalay by Rudyard Kipling --
Re: [gentoo-user] rfcomm0 interface missing
On Saturday 23 Nov 2013 11:44:58 Robin Atwood wrote: On Monday 18 November 2013, Mick wrote: After more than a year I tried to tether my mobile to my laptop to connect to GPRS using kppp. I noticed that kppp hangs and I have to kill it, while it hangs with Modem Ready. I can query the modem successfully using kppp, and it responds to ATI initialisation commands, so now I am trying to understand what is wrong with it and why the connection does not complete. ifconfig -a does not show rfcomm0, but this may be because it never completes the connection to my mobile phone provider's network, so the ppp link is not established. I can see that the rfcomm device is being created: # ls -la /dev/rfcomm* crw-rw 1 root uucp 216, 0 Nov 17 15:51 /dev/rfcomm0 and it does try to connect until it freezes showing Modem Ready, but I am getting no more errors to know what to do next. I was thinking that this may be related to the udev NIC renaming change that happened within the last year. However, I never had any udev rules to manage rfcomm and from what I recall vaguely when the udev update came, I had no problem connecting (but memory may be failing me after all this time). It could of course be related to my mobile phone providers settings - I haven't changed these for a long time and looking on the Internet I can't find if they are any different now. How should I troubleshoot this further? Could someone please hold my hand to set up ppp so that I can avoid kppp and its freezing behaviour? Have you started the rfcomm service? I remember having trouble until I did that. Thanks Robin, yes I started bluetooth and rfcomm as I used to do. I wonder if this is an ISP problem, i.e. they are no longer offering GPRS on this mobile phone account, or if I need a different login. I'll try again later to see if this is a temporary fault when I get a minute. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
[gentoo-user] rfcomm0 interface missing
After more than a year I tried to tether my mobile to my laptop to connect to GPRS using kppp. I noticed that kppp hangs and I have to kill it, while it hangs with Modem Ready. I can query the modem successfully using kppp, and it responds to ATI initialisation commands, so now I am trying to understand what is wrong with it and why the connection does not complete. ifconfig -a does not show rfcomm0, but this may be because it never completes the connection to my mobile phone provider's network, so the ppp link is not established. I can see that the rfcomm device is being created: # ls -la /dev/rfcomm* crw-rw 1 root uucp 216, 0 Nov 17 15:51 /dev/rfcomm0 and it does try to connect until it freezes showing Modem Ready, but I am getting no more errors to know what to do next. I was thinking that this may be related to the udev NIC renaming change that happened within the last year. However, I never had any udev rules to manage rfcomm and from what I recall vaguely when the udev update came, I had no problem connecting (but memory may be failing me after all this time). It could of course be related to my mobile phone providers settings - I haven't changed these for a long time and looking on the Internet I can't find if they are any different now. How should I troubleshoot this further? Could someone please hold my hand to set up ppp so that I can avoid kppp and its freezing behaviour? -- Regards, Mick signature.asc Description: This is a digitally signed message part.
