Hello, trying to connect to pptp server through linux iptables firewall. I have the ip_conntrack_pptp and ip_nat_pptp modules loaded. Anyone know what the below means and how to fix it? 20:10:28.569271 IP pptpserver.pptp > xxxxxxxx.4131: . ack 349 win 8820 20:10:28.569322 IP xxxxxxxx > pptpserver: GREv1, call 0, seq 0, ack 1, length 38: LCP, Conf-Request (0x01), id 0, length 20 20:10:28.569471 IP xxxxxxxx > pptpserver: GREv1, call 0, seq 1, length 45: LCP, Conf-Ack (0x02), id 34, length 31 20:10:28.574955 IP pptpserver > xxxxxxxx: GREv1, call 4131, ack 1, no-payload, length 12 20:10:30.569253 IP xxxxxxxx > pptpserver: GREv1, call 0, seq 2, length 34: LCP, Conf-Request (0x01), id 1, length 20 20:10:30.902135 IP pptpserver > xxxxxxxx: GREv1, call 4131, ack 2, no-payload, length 12 20:10:31.036259 IP pptpserver > xxxxxxxx: GREv1, call 4131, seq 2, length 34: LCP, Conf-Ack (0x02), id 1, length 20 20:10:31.074693 IP xxxxxxxx.4131 > pptpserver.pptp: P 349:373(24) ack 189 win 65347: pptp CTRL_MSGTYPE=SLI PEER_CALL_ID(0) SEND_ACCM(0x000a0000) RECV_ACCM(0xffffffff) 20:10:31.168891 IP pptpserver.pptp > xxxxxxxx.4131: . ack 373 win 8820 20:10:31.175664 IP xxxxxxxx > pptpserver: GREv1, call 0, ack 2, no-payload, length 12 20:10:31.180676 IP pptpserver > xxxxxxxx: GREv1, call 4131, seq 3, length 48: CHAP, Challenge (0x01), id 2, Value bf1e69be064b99fd81c1810a9d05b0e5, Name 192.168.10.22 20:10:31.219988 IP xxxxxxxx > pptpserver: GREv1, call 0, seq 3, ack 3, length 55: CHAP, Response (0x02), id 2, Value 50e507db3f5f8330dc3622846e7ffbb3, Name aaa__aaaaaaa 20:10:31.249508 IP pptpserver > xxxxxxxx: GREv1, call 4131, seq 4, ack 3, length 64: CHAP, Fail (0x04), id 2, Msg CHAP authentication failure, unit 578938[|chap] 20:10:31.250493 IP pptpserver > xxxxxxxx: GREv1, call 4131, seq 5, length 20: LCP, Term-Request (0x05), id 35, length 6 20:10:31.294624 IP xxxxxxxx.4131 > pptpserver.pptp: P 373:397(24) ack 189 win 65347: pptp CTRL_MSGTYPE=SLI PEER_CALL_ID(0) SEND_ACCM(0xffffffff) RECV_ACCM(0xffffffff) 20:10:31.296630 IP xxxxxxxx > pptpserver: GREv1, call 0, seq 4, ack 5, length 24: LCP, Term-Ack (0x06), id 35, length 6 20:10:31.368868 IP pptpserver.pptp > xxxxxxxx.4131: . ack 397 win 8820 20:10:31.407057 IP xxxxxxxx.4131 > pptpserver.pptp: P 397:413(16) ack 189 win 65347: pptp CTRL_MSGTYPE=CCRQ CALL_ID(4131) 20:10:31.412502 IP pptpserver.pptp > xxxxxxxx.4131: P 189:337(148) ack 413 win 8820: pptp CTRL_MSGTYPE=CDN CALL_ID(0) RESULT_CODE(3) ERR_CODE(0) CAUSE_CODE(0) [|pptp] 20:10:31.451146 IP xxxxxxxx.4131 > pptpserver.pptp: P 413:429(16) ack 337 win 65199: pptp CTRL_MSGTYPE=StopCCRQ REASON(1) 20:10:31.455487 IP pptpserver.pptp > xxxxxxxx.4131: P 337:353(16) ack 429 win 8820: pptp CTRL_MSGTYPE=StopCCRP RESULT_CODE(1) ERR_CODE(0) 20:10:31.456444 IP pptpserver.pptp > xxxxxxxx.4131: F 353:353(0) ack 429 win 8820 20:10:31.494050 IP xxxxxxxx.4131 > pptpserver.pptp: F 429:429(0) ack 353 win 65183 20:10:31.494672 IP xxxxxxxx.4131 > pptpserver.pptp: . ack 354 win 65183 20:10:31.499242 IP pptpserver.pptp > xxxxxxxx.4131: F 353:353(0) ack 430 win 8820 My website -- https://www.whitehat.net.au Alternate -- https://linux.dnsdojo.net
