PPTP VPN via Mobistar 2G/3G
Geplaatst: 27 jun 2011, 14:06
Sinds enkele dagen/weken kan ik geen PPTP VPN verbinding meer opstarten vanop m'n iPhone als die verbonden is met het Mobistar mobiel internet (2G of 3G). Voor die enkele dagen/weken werkte dat probleemloos en kon ik moeiteloos een PPTP VPN verbinding opzetten.
Volgens mij blokkeert Mobistar het GRE protocol, want als ik de logs van onze router erbij neem, dan zie ik onderstaande.
Je ziet dat de communicatie van de iPhone naar onze router over poort 1723 wel goed lukt, maar dat onze router geen antwoord krijgt op de GRE paketten.
Heb al naar Mobistar gebeld, en ze gingen mijn abbo switchen van de iphone.mobistar APN naar de web.pro.be ... eens zien of dat iets oplost.
Volgens mij blokkeert Mobistar het GRE protocol, want als ik de logs van onze router erbij neem, dan zie ik onderstaande.
Je ziet dat de communicatie van de iPhone naar onze router over poort 1723 wel goed lukt, maar dat onze router geen antwoord krijgt op de GRE paketten.
Heb al naar Mobistar gebeld, en ze gingen mijn abbo switchen van de iphone.mobistar APN naar de web.pro.be ... eens zien of dat iets oplost.
Code: Selecteer alles
13:37:53.924346 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [S], seq 2245639612, win 65535, options [mss 1410,nop,wscale 2,nop,nop,TS val 988192179 ecr 0,sackOK,eol], length 0
13:37:53.925441 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [S.], seq 3520419109, ack 2245639613, win 5792, options [mss 1460,sackOK,TS val 4006744862 ecr 988192179,nop,wscale 7], length 0
13:37:54.016688 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [.], ack 1, win 32853, options [nop,nop,TS val 988192274 ecr 4006744862], length 0
13:37:54.022218 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [P.], ack 1, win 32853, options [nop,nop,TS val 988192276 ecr 4006744862], length 156: pptp CTRL_MSGTYPE=SCCRQ PROTO_VER(1.0) FRAME_CAP(A) BEARER_CAP(A) MAX_CHAN(0) FIRM_REV(0) [|pptp]
13:37:54.031623 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [.], ack 157, win 54, options [nop,nop,TS val 4006744967 ecr 988192276], length 0
13:37:54.036947 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [P.], ack 157, win 54, options [nop,nop,TS val 4006744969 ecr 988192276], length 156: pptp CTRL_MSGTYPE=SCCRP PROTO_VER(1.0) RESULT_CODE(1) ERR_CODE(0) FRAME_CAP() BEARER_CAP() MAX_CHAN(1) FIRM_REV(1) [|pptp]
13:37:54.135276 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [.], ack 157, win 32814, options [nop,nop,TS val 988192386 ecr 4006744969], length 0
13:37:54.136017 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [P.], ack 157, win 32853, options [nop,nop,TS val 988192386 ecr 4006744969], length 168: pptp CTRL_MSGTYPE=OCRQ CALL_ID(2021) CALL_SER_NUM(0) MIN_BPS(300) MAX_BPS(100000000) BEARER_TYPE(Any) [|pptp]
13:37:54.138151 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [P.], ack 325, win 62, options [nop,nop,TS val 4006745074 ecr 988192386], length 32: pptp CTRL_MSGTYPE=OCRP CALL_ID(27904) PEER_CALL_ID(2021) RESULT_CODE(1) ERR_CODE(0) CAUSE_CODE(0) CONN_SPEED(100000000) RECV_WIN(64) PROC_DELAY(0) [|pptp]
13:37:54.188266 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 0, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:37:54.234806 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [.], ack 189, win 32845, options [nop,nop,TS val 988192485 ecr 4006745074], length 0
13:37:54.234941 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [P.], ack 189, win 32853, options [nop,nop,TS val 988192485 ecr 4006745074], length 24: pptp CTRL_MSGTYPE=SLI PEER_CALL_ID(27904) SEND_ACCM(0xffffffff) RECV_ACCM(0xffffffff)
13:37:54.277861 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [.], ack 349, win 62, options [nop,nop,TS val 4006745213 ecr 988192485], length 0
13:37:57.186343 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 1, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:00.187204 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 2, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:03.188730 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 3, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:06.190694 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 4, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:09.189865 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 5, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:12.190678 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 6, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:14.904800 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [.], ack 189, win 32853, length 0
13:38:14.906938 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [.], ack 349, win 62, options [nop,nop,TS val 4006765851 ecr 988192485], length 0
13:38:15.191625 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 7, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:18.192398 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 8, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:21.193270 IP 194.7.27.162 > 91.87.217.77: GREv1, call 2021, seq 9, length 41: LCP, Conf-Request (0x01), id 1, length 27
13:38:24.210125 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [F.], seq 189, ack 349, win 62, options [nop,nop,TS val 4006775158 ecr 988192485], length 0
13:38:24.304104 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [.], ack 190, win 32853, options [nop,nop,TS val 988222507 ecr 4006775158], length 0
13:38:24.514926 IP 91.87.217.77.44530 > 194.7.27.162.1723: Flags [F.], seq 349, ack 190, win 32853, options [nop,nop,TS val 988222717 ecr 4006775158], length 0
13:38:24.515054 IP 194.7.27.162.1723 > 91.87.217.77.44530: Flags [.], ack 350, win 62, options [nop,nop,TS val 4006775463 ecr 988222717], length 0