I've never seen a tcpdump like that before. out of interest, what command-line options did you use ?
It looks like some authentication problem to me. You may want to play with your authentication options in your config files.
I've always omitted all the all the authentication options from l2tpd.conf, and just used the normal options in the ppp options file.
sorry I can't help you more.
Tim Philips wrote:
------------------------------------------------------------------------
20:18:29.772200 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](0/0)Ns=0,Nr=0 *MSGTYPE(SCCRQ) *PROTO_VER(1.0) *FRAMING_CAP(AS) *BEARER_CAP(AD) |...
20:18:29.776421 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[TLS](28/0)Ns=0,Nr=1 *MSGTYPE(SCCRP) *PROTO_VER(1.0) *FRAMING_CAP(AS) *BEARER_CAP() |... (DF)
20:18:29.778770 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/0)Ns=1,Nr=1 ZLB
20:18:29.778953 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/0)Ns=1,Nr=1 *MSGTYPE(SCCCN) *CHALLENGE_RESP(cc53952f1d03bbda960b8e5179bc076e) 20:18:29.779263 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[TLS](28/0)Ns=1,Nr=2 ZLB (DF)
20:18:29.779319 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/0)Ns=2,Nr=1 *MSGTYPE(ICRQ) *ASSND_SESS_ID(3002) *CALL_SER_NUM(134218247) *BEARER_TYPE(A) |...
20:18:29.781272 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[TLS](28/3002)Ns=1,Nr=3 *MSGTYPE(ICRP) *ASSND_SESS_ID(9909) (DF)
20:18:29.781290 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[TLS](28/0)Ns=2,Nr=3 ZLB (DF)
20:18:29.783337 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/0)Ns=3,Nr=2 ZLB
20:18:29.784797 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=3,Nr=2 *MSGTYPE(ICCN) *TX_CONN_SPEED(44000) RX_CONN_SPEED(26400) *FRAMING_TYPE(A) |...
20:18:29.789691 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[TLS](28/3002)Ns=2,Nr=4 ZLB (DF)
20:18:29.804993 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:29.955996 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(4), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:29.970049 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:31.195959 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(5), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:32.807765 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:32.965421 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:34.210952 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(6), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:35.817805 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:35.965037 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:38.206807 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(7), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:38.827848 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:38.991426 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:41.837816 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:41.990593 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:42.211309 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(8), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:44.847938 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:45.006354 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:46.206717 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(9), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:47.857990 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:48.020606 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:50.211291 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(10), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:50.868089 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:51.021631 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:53.878079 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:54.031534 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:54.210066 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(11), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:18:56.888154 L2TP-LNS.l2tp > ASCEND-LAC.9104: l2tp:[L](28/3002) {LCP 24: Conf-Req(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9} (DF)
20:18:57.045385 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 24: Conf-Ack(1), ACCM=00000000, Auth-Prot PAP, Magic-Num=a6c481a9}
20:18:59.400454 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(12), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:19:02.204905 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[](9576/9909) {LCP 51: Conf-Req(13), ACCM=00000000, Magic-Num=46be5b3f, PFC, ACFC, MRRU=1614, End-Disc Local}
20:19:08.643245 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=4,Nr=2 *MSGTYPE(CDN) *RESULT_CODE(1/0) *Q931_CC(16, 00) *ASSND_SESS_ID(3002) 20:19:09.635118 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=4,Nr=2 *MSGTYPE(CDN) *RESULT_CODE(1/0) *Q931_CC(16, 00) *ASSND_SESS_ID(3002) 20:19:10.647825 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=4,Nr=2 *MSGTYPE(CDN) *RESULT_CODE(1/0) *Q931_CC(16, 00) *ASSND_SESS_ID(3002) 20:19:11.647771 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=4,Nr=2 *MSGTYPE(CDN) *RESULT_CODE(1/0) *Q931_CC(16, 00) *ASSND_SESS_ID(3002) 20:19:12.648073 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=4,Nr=2 *MSGTYPE(CDN) *RESULT_CODE(1/0) *Q931_CC(16, 00) *ASSND_SESS_ID(3002) 20:19:14.647977 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=4,Nr=2 *MSGTYPE(CDN) *RESULT_CODE(1/0) *Q931_CC(16, 00) *ASSND_SESS_ID(3002) 20:19:16.648032 ASCEND-LAC.9104 > L2TP-LNS.l2tp: l2tp:[TLS](9576/9909)Ns=4,Nr=2 *MSGTYPE(CDN) *RESULT_CODE(1/0) *Q931_CC(16, 00) *ASSND_SESS_ID(3002)
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Damion de Soto - Software Engineer email: [EMAIL PROTECTED] SnapGear --- ph: +61 7 3435 2809 | Custom Embedded Solutions fax: +61 7 3891 3630 | and Security Appliances web: http://www.snapgear.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- Free Embedded Linux Distro at http://www.snapgear.org ---
