[lwip-users] Why no response to the IPCP request?

[Domain]

I use lwip in an ARM-based system. But for some SIM cards, it cannot connect
to the GPRS. These cards work well in another system (may not use lwip). See
the log below, I can't get IPCP response, but a LCP Terminate-Request! Why?

lcp_init: xmit_accm=0 0 0 0 
pppStartCB: unit 0 
ppp_set_xaccm[0]: outACCM=0 0 0 0 
ppp_send_config[0]: outACCM=FF FF FF FF 
ppp_recv_config[0]: inACCM=0 0 0 0 
lcp_lowerup: asyncmap=0 0 0 0 
LCP: lowerup state 0 (LS_INITIAL) -> 2 (LS_CLOSED) 
auth_reset: 0 
lcp_addci: L opt=2 0 
lcp_addci: L opt=5 52181044 
lcp_addci: opt=7 
lcp_addci: opt=8 
pppWrite[0]: len=47 
fsm_sdata(LCP): Sent code 1,1,20. 
LCP: sending Configure-Request, id 1 
LCP: open state 2 (LS_CLOSED) -> 6 (LS_REQSENT) 
LCP: timeout resending Config-Request state=6 (LS_REQSENT) 
lcp_addci: L opt=2 0 
lcp_addci: L opt=5 52181044 
lcp_addci: opt=7 
lcp_addci: opt=8 
pppWrite[0]: len=47 
fsm_sdata(LCP): Sent code 1,1,20. 
LCP: sending Configure-Request, id 1 
PPP Data = [ 7E FF 7D 23 C0 21 7D 21 7D 23 7D 20 7D 39 7D 22 7D 26 7D 20 7D
2A 7D 20 7D 20 7D 27 7D 22 7D 28 7D 22 7D 25 7D 26 6A D4 A9 7D 2D 7D 23 7D
25 C2 23 7D 25 59 5A 7E 7E FF 7D 23 C0 21 7D 23 7D 21 7D 20 7D 2A 7D 22 7D
26 7D 20 7D 2A 7D 20 7D 20 6C 50 7E 7E FF 7D 23 C0 21 7D 23 7D 21 7D 20 7D
2A 7D 22 7D 26 7D 20 7D 2A 7D 20 7D 20 6C 50 7E ] 
pppInProc[0]: got 112 bytes 
pppInput[0]: LCP len=25 
fsm_input(LCP):1,3,25 
fsm_rconfreq(LCP): Rcvd id 3 state=6 (LS_REQSENT) 
lcp_reqci: rcvd ASYNCMAP=A000 PCOMPRESSIO ACCOMPRESSIO MAGICNUMBER (6AD4A90D 
lcp_reqci: Nak AUTHTYPE CHAP not allowed 
lcp_reqci: returning CONFNAK. 
pppWrite[0]: len=23 
fsm_sdata(LCP): Sent code 3,3,8. pppInput[0]: LCP len=10 
fsm_input(LCP):3,1,10 
fsm_rconfnakrej(LCP): Rcvd id 1 state=6 (LS_REQSENT) 
lcp_addci: L opt=2 A0000 
lcp_addci: L opt=5 52181044 
lcp_addci: opt=7 
lcp_addci: opt=8 
pppWrite[0]: len=47 
fsm_sdata(LCP): Sent code 1,2,20. 
LCP: sending Configure-Request, id 2 
pppInput[0]: LCP len=10 
fsm_input(LCP):3,1,10 
fsm_rconfnakrej(LCP): Rcvd id 1 state=6 (LS_REQSENT) 
PPP Data = [ 7E FF 7D 23 C0 21 7D 21 7D 25 7D 20 7D 38 7D 22 7D 26 7D 20 7D
2A 7D 20 7D 20 7D 27 7D 22 7D 28 7D 22 7D 25 7D 26 6A D4 A9 7D 2D 7D 23 7D
24 C0 23 DF 21 7E 7E FF 7D 23 C0 21 7D 22 7D 22 7D 20 7D 34 7D 22 7D 26 7D
20 7D 2A 7D 20 7D 20 7D 25 7D 26 52 7D 38 7D 30 44 7D 27 7D 22 7D 28 7D 22
7D 5D 7D 33 7E ] 
pppInProc[0]: got 101 bytes 
pppInput[0]: LCP len=24 
fsm_input(LCP):1,5,24 
fsm_rconfreq(LCP): Rcvd id 5 state=6 (LS_REQSENT) 
lcp_reqci: rcvd ASYNCMAP=A000 PCOMPRESSIO ACCOMPRESSIO MAGICNUMBER (6AD4A90D 
lcp_reqci:  PAP (C023 
lcp_reqci: returning CONFACK. pppWrite[0]: len=53 
fsm_sdata(LCP): Sent code 2,5,24. 
pppInput[0]: LCP len=20 
fsm_input(LCP):2,2,20 
fsm_rconfack(LCP): Rcvd id 2 state=8 (LS_ACKSENT) 
lcp_acki: Ack 
ppp_send_config[0]: outACCM=0 0 A 0 
ppp_recv_config[0]: inACCM=0 0 A 0 
link_established: 0 
upap_lowerup: 0 s=0 
IPCP: lowerup state 0 (LS_INITIAL) -> 2 (LS_CLOSED) 
upap_authwithpeer: 0 user=%s password=%s s=1 
pppWrite[0]: len=18 
pap_sauth: Sent id 1 
PPP Data = [ 7E C0 23 02 01 00 05 00 FD 30 7E ] 
pppInProc[0]: got 11 bytes 
pppInput[0]: PAP len=5 
pap_rauthack: Rcvd id 1 s=3 
Remote message: auth_withpeer_success: 0 proto=C023
pppWrite[0]: len=30 
fsm_sdata(IPCP): Sent code 1,1,22. 
IPCP: sending Configure-Request, id 1
IPCP: open state 2 (LS_CLOSED) -> 6 (LS_REQSENT) 
PPP Data = [ 7E ] 
pppInProc[0]: got 1 bytes 
PPP Data = [ FF 7D 23 C0 21 7D 25 7D 25 7D 20 7D 24 5C A4 7E ]
pppInProc[0]: got 16 bytes 
pppInput[0]: LCP len=4 
fsm_input(LCP):5,5,4 
fsm_rtermreq(LCP): Rcvd id 5 state=9 (LS_OPENED) 
LCP terminated by peer
link_down: 0 
upap_lowerdown: 0 s=4 
IPCP: lowerdown state 6 (LS_REQSENT) -> 1 (LS_STARTING) 
IPCP: close reason=LCP down state 1 (LS_STARTING) -> 0 (LS_INITIAL) 
pppLinkDown: unit 0 
pppMainWakeup: unit 0 
ppp_send_config[0]: outACCM=FF FF FF FF 
ppp_recv_config[0]: inACCM=0 0 A 0 
pppWrite[0]: len=17 
fsm_sdata(LCP): Sent code 6,5,4. 
PPP Data = [ 7E ] 
pppInProc[0]: got 1 bytes 
PPP Data = [ FF 7D 23 C0 21 7D 25 7D 25 7D 20 7D 24 5C A4 7E ] 
pppInProc[0]: got 16 bytes 
pppInput[0]: LCP len=4 
fsm_input(LCP):5,5,4 
fsm_rtermreq(LCP): Rcvd id 5 state=5 (LS_STOPPING) 
pppWrite[0]: len=17 
fsm_sdata(LCP): Sent code 6,5,4. 
upap_timeout: 0 timeout 6 expired s=0 
PPP Data = [ 0D ] 
pppInProc[0]: got 1 bytes 
LCP: timeout sending Terminate-Request state=5 (LS_STOPPING) 
link_terminated: 0 
Connection terminated. 
pppLinkTerminated: unit 0 
pppMainWakeup: unit 0 
pppMain: unit 0: PHASE_DEAD
-- 
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