No response to 6 echo-requests. Peer not responding Re: modem pppd authentication error: peer refused to authenticate: terminating link

[hong sheng <hong022011 gmail com>]

It's 3G connection. It turns to be the chap authentication method problem. As pppd only supports chap ms-v2 and the ISP always initiates as chap md5 algorithm. So, when I set it to be 'refuse-chap' in the option, the modem will try to connect the ISP.

However, now, I met another problem. I got the local IP and remote IP, however, it seems the ISP doesn't response my modem pings or echo. 

The error messages are:

"No response to 6 echo-requests." "Peer not responding"

Anyone knows why this happens?


thanks

Xiaohong

2010/11/16 José Queiroz <zekkerj gmail com>

Hi Hong Sheng,

2010/11/15 hong sheng <hong022011 gmail com>

Hi

I got the following pppd call error for chap authentication in vz system. It seems the peer refused to authenticate. How can I fix the problem? Does it mean I have to tell Verizon my username and password for setting up the data connection so that the peer can accept it?

Is this a 3G connection? If so, the authentication happens inside the 3g dongle, using a "common" username/password, in the majority of the cases.

In example, my connection uses the ISP name as username ("tim", for "Tim/Brazil"). The same for the password.

thanks

Here is the pppd debug message:


----------------------------------------
Dialing...
Script /usr/sbin/chat -v -f /etc/chatscripts/verizon-connect finished (pid 14614), status = 0x0
Serial connection established.
using channel 11
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB2
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MD5> <magic 0x49a7edba> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MD5> <magic 0x49a7edba> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <mru 1500> <asyncmap 0x0> <auth chap MD5> <magic 0xebbf684b> <pcomp> <accomp>]
sent [LCP ConfAck id=0x1 <mru 1500> <asyncmap 0x0> <auth chap MD5> <magic 0xebbf684b> <pcomp> <accomp>]
rcvd [LCP ConfRej id=0x1 <auth chap MD5>]
sent [LCP ConfReq id=0x2 <asyncmap 0x0> <magic 0x49a7edba> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x2 <asyncmap 0x0> <magic 0x49a7edba> <pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x49a7edba]
peer refused to authenticate: terminating link
sent [LCP TermReq id=0x3 "peer refused to authenticate"]
rcvd [CHAP Challenge id=0x1 <7239534d5bd64be4573a7c768252d3f5>, name = ""]
Discarded non-LCP packet when LCP not open
rcvd [LCP EchoRep id=0x0 magic=0xebbf684b]
rcvd [LCP TermAck id=0x3]
Connection terminated.

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