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Old 05-30-2005, 08:05 PM   #1
*Dark Dragon*
Registered: Apr 2005
Distribution: Debian Testing + KDE
Posts: 53

Rep: Reputation: 17
pppd don't work after kernel upgrade from 2.4.18 to 2.6.11

After I upgrade kernel, I discover big problem - I can't connect to my ISP! I upgraded pppd, and spend some time trying to found solution of my problem in the Web. But it still not worked. Here detail description:

I type 'pppd call gprs' and get following output:

Serial connection established.
using channel 3
Using interface ppp0
Connect: ppp0 <--> /dev/ttyS1
rcvd [LCP ConfReq id=0x3 <asyncmap 0xa0000> <pcomp> <accomp> <magic 0xd64c673a> <auth chap MD5>]
sent [LCP ConfReq id=0x1 <magic 0x8f50a668>]
sent [LCP ConfRej id=0x3 <asyncmap 0xa0000> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <magic 0x8f50a668>]
rcvd [LCP ConfReq id=0x5 <magic 0xd64c673a> <auth chap MD5>]
sent [LCP ConfNak id=0x5 <auth pap>]
rcvd [LCP ConfReq id=0x7 <magic 0xd64c673a> <auth pap>]
sent [LCP ConfAck id=0x7 <magic 0xd64c673a> <auth pap>]
sent [LCP EchoReq id=0x0 magic=0x8f50a668]
sent [PAP AuthReq id=0x1 user="beeline" password=<hidden>]
rcvd [LCP EchoRep id=0x0 magic=0xd64c673a]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
sent [IPCP ConfReq id=0x1 <addr> <ms-dns1> <ms-dns3>]
rcvd [IPCP ConfReq id=0x1 <addr>]
sent [IPCP ConfAck id=0x1 <addr>]
sent [IPCP ConfReq id=0x1 <addr> <ms-dns1> <ms-dns3>]
rcvd [IPCP ConfNak id=0x1 <addr> <ms-dns1> <ms-dns3>]
sent [IPCP ConfReq id=0x2 <addr> <ms-dns1> <ms-dns3>]
rcvd [IPCP ConfAck id=0x2 <addr> <ms-dns1> <ms-dns3>]
Cannot determine ethernet address for proxy ARP
local IP address
remote IP address
primary DNS address
secondary DNS address
Script /etc/ppp/ip-up started (pid 3814)

ifconfig shows this:

ppp0 Link encap:Point-to-Point Protocol
inet addr: P-t-P: Mask:
RX packets:3 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:54 (54.0 b) TX bytes:76 (76.0 b)

Note that message "Cannot determine ethernet address for proxy ARP" is normal output when I connect to ISP.

As you can see, problem is simple: at the end of log must be message "Script /etc/ppp/ip-up finished (pid 3814), status = 0x0", but it isn't there. I may wait very long, but ip-up simply do not wish to finish. Because of this, connection with Internet not work. I cannot found cause of this problem. And I cannot switch to new kernel while this problem exist! I really hope that someone give me at least hint how to solve this...
Old 05-31-2005, 02:38 AM   #2
*Dark Dragon*
Registered: Apr 2005
Distribution: Debian Testing + KDE
Posts: 53

Original Poster
Rep: Reputation: 17
Additional details

I discover interesting thing. When I launch pppd call gprs within linux console, I get (after some time of waiting) following output after "Script /etc/ppp/ip-up started":

IN=ppp0 OUT= MAC= SRC= DST= LEN=234 TOS=0x00 PREC=0x00 TTL=238 ID=7981 DF PROTO=UDP SPT=53 DPT=32768 LEN=214

This string appears again every few seconds. And it displayed only within linux console and syslog. I'm programmer, and networking is not my occupation - I simply do not know what this means. But I'm sure that this describe my problem. And I think that there is someone who can explain this string?...
Old 06-01-2005, 11:15 AM   #3
*Dark Dragon*
Registered: Apr 2005
Distribution: Debian Testing + KDE
Posts: 53

Original Poster
Rep: Reputation: 17
Problem solved

I found solution - cause of problem in the kernel configuration. After reconfiguring all work correctly.


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