And if move that printf in l2tp_input with other debug information (sometimes Data hex: doesn't work):
ppp phase changed[1]: phase=0 ppp_connect[1]: holdoff=0 ppp phase changed[1]: phase=3 pppol2tp: input packet, len=107, tunnel=47089, session=0, ns=0, nr=1 Data hex: 80 08 00 00 00 00 00 02 80 08 00 00 00 02 01 00 80 0a 00 00 00 03 00 00 00 03 80 0a 00 00 00 04 00 00 00 00 00 08 00 00 00 06 06 90 80 10 00 00 00 07 57 69 76 65 2d 4e 47 2d 4d 54 00 13 00 00 00 08 78 65 6c 65 72 61 6e 63 65 2e 63 6f 6d 80 08 00 00 00 09 42 58 80 08 00 00 00 0a 00 08 pppol2tp: Assigned tunnel ID 16984 pppol2tp: input packet, len=12, tunnel=47089, session=0, ns=1, nr=2 Data hex: pppol2tp: input packet, len=28, tunnel=47089, session=35933, ns=1, nr=3 Data hex: 80 08 00 00 00 00 00 0b 80 08 00 00 00 0e cc 3b pppol2tp: Assigned session ID 52283 ppp_start[1] ppp phase changed[1]: phase=6 ppp_send_config[1] ppp_recv_config[1] ppp: auth protocols: PAP=0 CHAP=1 CHAP_MD5=0 CHAP_MS=0 CHAP_MS2=1 sent [LCP ConfReq id=0x5 <mru 1450> <magic 0xdadcdfcd>] ppp_start[1]: finished pppol2tp: input packet, len=12, tunnel=47089, session=0, ns=2, nr=3 Data hex: pppol2tp: input packet, len=12, tunnel=47089, session=35933, ns=2, nr=4 Data hex: pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 01 01 00 15 02 06 00 00 00 00 03 05 c2 23 81 05 06 d9 bb 4b cc rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MS-v2> <magic 0xd9bb4bcc>] sent [LCP ConfRej id=0x1 <asyncmap 0x0>] pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 01 02 00 0f 03 05 c2 23 81 05 06 d9 bb 4b cc rcvd [LCP ConfReq id=0x2 <auth chap MS-v2> <magic 0xd9bb4bcc>] sent [LCP ConfAck id=0x2 <auth chap MS-v2> <magic 0xd9bb4bcc>] pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 01 02 00 0f 03 05 c2 23 81 05 06 d9 bb 4b cc rcvd [LCP ConfReq id=0x2 <auth chap MS-v2> <magic 0xd9bb4bcc>] sent [LCP ConfAck id=0x2 <auth chap MS-v2> <magic 0xd9bb4bcc>] pppol2tp: timeout sent [LCP ConfReq id=0x5 <mru 1450> <magic 0xdadcdfcd>] pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 02 05 00 0e 01 04 05 aa 05 06 da dc df cd rcvd [LCP ConfAck id=0x5 <mru 1450> <magic 0xdadcdfcd>] netif_set_mtu[1]: mtu=1450 ppp_send_config[1] ppp_recv_config[1] ppp phase changed[1]: phase=7 pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 00 00 08 d9 bb 4b cc rcvd [LCP EchoReq id=0x0 magic=0xd9bb4bcc] sent [LCP EchoRep id=0x0 magic=0xdadcdfcd] pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c2 23 01 0b 00 1f 10 d8 ac ec 33 75 1d 9a 30 c5 40 4e 06 64 98 43 fc 57 69 76 65 2d 4e 47 2d 4d 54 rcvd [CHAP Challenge id=0xb <d8acec33751d9a30c5404e06649843fc>, name = "Wive-NG-MT"] sent [CHAP Response id=0xb <485cbfdb8233c4342d830600464c5e5300000000000000005eeef50fa99f0ed96b9049d96063aae4884e011953dc6d5800>, name = "test2"] pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c2 23 03 0b 00 3f 53 3d 31 38 45 34 31 30 42 34 42 44 35 33 38 45 35 42 38 30 45 42 46 34 42 44 35 46 35 33 30 34 38 32 38 44 42 30 39 33 43 43 20 4d 3d 41 63 63 65 73 73 20 67 72 61 6e 74 65 64 rcvd [CHAP Success id=0xb "S=18E410B4BD538E5B80EBF4BD5F5304828DB093CC M=Access granted"] CHAP authentication succeeded ppp phase changed[1]: phase=9 sent [IPCP ConfReq id=0x9 <addr 0.0.0.0>] pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 80 21 01 01 00 0a 03 06 ac 10 c8 01 rcvd [IPCP ConfReq id=0x1 <addr 172.16.200.1>] sent [IPCP ConfAck id=0x1 <addr 172.16.200.1>] pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 80 21 03 09 00 0a 03 06 ac 10 c8 05 rcvd [IPCP ConfNak id=0x1 <addr 172.16.200.5>] sent [IPCP ConfReq id=0x2 <addr 172.16.200.5>] pppol2tp: input packet, len=0, tunnel=53427, session=47857, ns=0, nr=0 Data hex: ff 03 80 21 02 02 00 0a 03 06 ac 10 c8 05 rcvd [IPCP ConfAck id=0x2 <addr 172.16.200.5>] sent [IPCP ConfReq id=0x6 <addr 172.16.200.5>] pppol2tp: input packet, len=0, tunnel=53427, session=47857, ns=0, nr=0 Data hex: rcvd [IPCP ConfAck id=0x6 <addr 172.16.200.5>] sifvjcomp[1]: VJ compress enable=0 slot=0 max slot=0 sifup[1]: err_code=0 local IP address 172.16.200.5 remote IP address 172.16.200.1 ppp phase changed[1]: phase=10 pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 01 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 02 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 03 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Da hex: ff 03 c0 21 09 04 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 05 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 06 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 07 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 08 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 09 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 0a 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 0b 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 0c 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 0d 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 0e 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 0f 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 10 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 11 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 12 00 08 d9 bb 4b cc pppol2tp: input packet, len=20, tunnel=47089, session=0, ns=2, nr=4 Data hex: 80 08 00 00 00 00 00 06 pppol2tp: input packet, len=20, tunnel=47089, session=0, ns=2, nr=4 Data hex: 80 08 00 00 00 00 00 06 pppol2tp: input packet, len=20, tunnel=47089, session=0, ns=2, nr=4 Data hex: 80 08 00 00 00 00 00 06 pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 13 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 14 00 08 d9 bb 4b cc pppol2tp: input packet, len=20, tunnel=47089, session=0, ns=2, nr=4 Data hex: 80 08 00 00 00 00 00 06 pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 15 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 16 00 08 d9 bb 4b cc pppol2tp: input packet, len=20, tunnel=47089, session=0, ns=2, nr=4 Data hex: 80 08 00 00 00 00 00 06 pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 17 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 18 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 19 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 1a 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 1b 00 08 d9 bb 4b cc pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 09 1c 00 08 d9 bb 4b cc pppol2tp: input packet, len=45, tunnel=47089, session=0, ns=3, nr=4 Data hex: 80 08 00 00 00 00 00 04 80 08 00 00 00 09 42 58 80 11 00 00 00 01 00 01 00 00 54 69 6d 65 6f 75 74 pppol2tp: input packet, len=0, tunnel=47089, session=35933, ns=0, nr=0 Data hex: ff 03 c0 21 05 03 00 10 55 73 65 72 20 72 65 71 75 65 73 74 rcvd [LCP TermReq id=0x3 "User request"] LCP terminated by peer (User request) ppp phase changed[1]: phase=9 sifvjcomp[1]: VJ compress enable=0 slot=0 max slot=0 sifdown[1]: err_code=0 ppp phase changed[1]: phase=6 ppp_send_config[1] ppp_recv_config[1] sent [LCP TermAck id=0x3] pppol2tp: input packet, len=45, tunnel=47089, session=0, ns=3, nr=4 Data hex: 80 08 00 00 00 00 00 04 80 08 00 00 00 09 42 58 80 11 00 00 00 01 00 01 00 00 54 69 6d 65 6f 75 74 pppol2tp: input packet, len=45, tunnel=47089, session=0, ns=3, nr=4 Data hex: 80 08 00 00 00 00 00 04 80 08 00 00 00 09 42 58 80 11 00 00 00 01 00 01 00 00 54 69 6d 65 6f 75 74 ppp phase changed[1]: phase=12 Connection terminated. ppp_link_terminated[1] ppp_link_end[1] ppp phase changed[1]: phase=0 status_cb: Connection lost ppp_link_terminated[1]: finished. -- View this message in context: http://lwip.100.n7.nabble.com/lwip2-0-2-l2tp-question-tp30013p30078.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users