[PVE-User] PX4 and IPv6

Guillaume proxmox at shadowprojects.org
Thu Aug 18 13:41:53 CEST 2016


And when trying an ipv6 http query on the non-working container, but 
from proxmox :

** host
~# tcpdump -i vmbr0 'ip6'
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on vmbr0, link-type EN10MB (Ethernet), capture size 262144 bytes
12:22:42.450960 IP6 2001:41d0:1008:1c89::.43272 > 
2001:41d0:1008:1c89::102.http: Flags [S], seq 182952018, win 28800, 
options [mss 1440,sackOK,TS val 183615462 ecr 0,nop,wscale 7], length 0
12:22:42.451000 IP6 2001:41d0:1008:1c89::102.http > 
2001:41d0:1008:1c89::.43272: Flags [S.], seq 1181316965, ack 182952019, 
win 28560, options [mss 1440,sackOK,TS val 183615462 ecr 
183615462,nop,wscale 7], length 0
12:22:42.451012 IP6 2001:41d0:1008:1c89::.43272 > 
2001:41d0:1008:1c89::102.http: Flags [.], ack 1, win 225, options 
[nop,nop,TS val 183615462 ecr 183615462], length 0
12:22:42.451059 IP6 2001:41d0:1008:1c89::.43272 > 
2001:41d0:1008:1c89::102.http: Flags [P.], seq 1:125, ack 1, win 225, 
options [nop,nop,TS val 183615462 ecr 183615462], length 124
12:22:42.451069 IP6 2001:41d0:1008:1c89::102.http > 
2001:41d0:1008:1c89::.43272: Flags [.], ack 125, win 224, options 
[nop,nop,TS val 183615462 ecr 183615462], length 0
12:22:42.451183 IP6 2001:41d0:1008:1c89::102.http > 
2001:41d0:1008:1c89::.43272: Flags [P.], seq 1:355, ack 125, win 224, 
options [nop,nop,TS val 183615462 ecr 183615462], length 354
12:22:42.451193 IP6 2001:41d0:1008:1c89::.43272 > 
2001:41d0:1008:1c89::102.http: Flags [.], ack 355, win 234, options 
[nop,nop,TS val 183615462 ecr 183615462], length 0
12:22:42.451593 IP6 2001:41d0:1008:1c89::.43272 > 
2001:41d0:1008:1c89::102.http: Flags [F.], seq 125, ack 355, win 234, 
options [nop,nop,TS val 183615462 ecr 183615462], length 0
12:22:42.451639 IP6 2001:41d0:1008:1c89::102.http > 
2001:41d0:1008:1c89::.43272: Flags [F.], seq 355, ack 126, win 224, 
options [nop,nop,TS val 183615462 ecr 183615462], length 0
12:22:42.451646 IP6 2001:41d0:1008:1c89::.43272 > 
2001:41d0:1008:1c89::102.http: Flags [.], ack 356, win 234, options 
[nop,nop,TS val 183615462 ecr 183615462], length 0
12:22:42.858390 IP6 fe80::6e50:4dff:feae:a900.2029 > ff02::66.2029: UDP, 
length 6

** container
# tcpdump -i eth0 ip6
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
12:22:06.250292 IP6 2001:41d0:1008:1c89::.42998 > 
2001:41d0:1008:1c89::102.http: Flags [S], seq 4268225972, win 28800, 
options [mss 1440,sackOK,TS val 183606412 ecr 0,nop,wscale 7], length 0
12:22:06.250318 IP6 2001:41d0:1008:1c89::102.http > 
2001:41d0:1008:1c89::.42998: Flags [S.], seq 2750933540, ack 4268225973, 
win 28560, options [mss 1440,sackOK,TS val 183606412 ecr 
183606412,nop,wscale 7], length 0
12:22:06.250336 IP6 2001:41d0:1008:1c89::.42998 > 
2001:41d0:1008:1c89::102.http: Flags [.], ack 1, win 225, options 
[nop,nop,TS val 183606412 ecr 183606412], length 0
12:22:06.250391 IP6 2001:41d0:1008:1c89::.42998 > 
2001:41d0:1008:1c89::102.http: Flags [P.], seq 1:125, ack 1, win 225, 
options [nop,nop,TS val 183606412 ecr 183606412], length 124: HTTP: GET 
/ HTTP/1.1
12:22:06.250401 IP6 2001:41d0:1008:1c89::102.http > 
2001:41d0:1008:1c89::.42998: Flags [.], ack 125, win 224, options 
[nop,nop,TS val 183606412 ecr 183606412], length 0
12:22:06.250503 IP6 2001:41d0:1008:1c89::102.http > 
2001:41d0:1008:1c89::.42998: Flags [P.], seq 1:355, ack 125, win 224, 
options [nop,nop,TS val 183606412 ecr 183606412], length 354: HTTP: 
HTTP/1.1 200 OK
12:22:06.250521 IP6 2001:41d0:1008:1c89::.42998 > 
2001:41d0:1008:1c89::102.http: Flags [.], ack 355, win 234, options 
[nop,nop,TS val 183606412 ecr 183606412], length 0

Le 18/08/2016 à 11:21, Guillaume a écrit :
> - It is the same setup, i checked twice.
> - It is a routed setup on an OVH server indeed. NDP entries are on 
> each firewall (lxc, node and datacenter).
>
> Maybe a reboot would help, but i'm trying to avoid that for the moment.
>
> Here is the tcpdump logs, there seems to be no reply to the ipv6 
> requests as they are showing on the container :
> * Port 80 on working ipv6 container (2001:41d0:1007:1c79::101)
>
> ** host
> ~# tcpdump -i vmbr0 ip6
> tcpdump: verbose output suppressed, use -v or -vv for full protocol 
> decode
> listening on vmbr0, link-type EN10MB (Ethernet), capture size 262144 
> bytes
> 11:14:31.188568 IP6 fe80::caf9:f9ff:fe58:fb00.2029 > ff02::66.2029: 
> UDP, length 72
> 11:14:31.536156 IP6 fe80::6e50:4dff:feae:a900.2029 > ff02::66.2029: 
> UDP, length 72
> 11:14:35.828631 IP6 fe80::caf9:f9ff:fe58:fb00 > ff02::5: OSPFv3, 
> Hello, length 36
> 11:14:37.568228 IP6 fe80::6e50:4dff:feae:a900.2029 > ff02::66.2029: 
> UDP, length 6
> 11:14:41.186066 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [S], seq 4010901551, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243609104 ecr 0], length 0
> 11:14:41.186191 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.31183: Flags [S.], seq 2044967707, ack 4010901552, 
> win 28560, options [mss 1440,sackOK,TS val 182595146 ecr 
> 3243609104,nop,wscale 7], length 0
> 11:14:41.334748 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 1, win 1026, options 
> [nop,nop,TS val 3243609254 ecr 182595146], length 0
> 11:14:41.334927 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [F.], seq 1, ack 1, win 1026, 
> options [nop,nop,TS val 3243609254 ecr 182595146], length 0
> 11:14:41.334981 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.31183: Flags [F.], seq 1, ack 2, win 224, options 
> [nop,nop,TS val 182595183 ecr 3243609254], length 0
> 11:14:41.338075 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [S], seq 2137551393, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243609254 ecr 0], length 0
> 11:14:41.338186 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [S.], seq 2213057153, ack 2137551394, 
> win 28560, options [mss 1440,sackOK,TS val 182595184 ecr 
> 3243609254,nop,wscale 7], length 0
> 11:14:41.489349 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 2, win 1026, options 
> [nop,nop,TS val 3243609406 ecr 182595183], length 0
> 11:14:41.497826 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 1, win 1026, options 
> [nop,nop,TS val 3243609410 ecr 182595184], length 0
> 11:14:41.497928 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [P.], seq 1:68, ack 1, win 1026, 
> options [nop,nop,TS val 3243609410 ecr 182595184], length 67
> 11:14:41.497965 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [.], ack 68, win 224, options 
> [nop,nop,TS val 182595224 ecr 3243609410], length 0
> 11:14:41.498094 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [P.], seq 1:2273, ack 68, win 224, 
> options [nop,nop,TS val 182595224 ecr 3243609410], length 2272
> 11:14:41.498163 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [FP.], seq 2273:2451, ack 68, win 224, 
> options [nop,nop,TS val 182595224 ecr 3243609410], length 178
> 11:14:41.648498 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 2273, win 990, options 
> [nop,nop,TS val 3243609567 ecr 182595224], length 0
> 11:14:41.648527 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 2452, win 988, options 
> [nop,nop,TS val 3243609567 ecr 182595224], length 0
> 11:14:41.696559 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [F.], seq 68, ack 2452, win 1026, 
> options [nop,nop,TS val 3243609610 ecr 182595224], length 0
> 11:14:41.696641 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [.], ack 69, win 224, options 
> [nop,nop,TS val 182595274 ecr 3243609610], length 0
> 11:14:42.175057 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [S], seq 1761752329, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243610093 ecr 0], length 0
> 11:14:42.175124 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [S.], seq 477212830, ack 1761752330, 
> win 28560, options [mss 1440,sackOK,TS val 182595393 ecr 
> 3243610093,nop,wscale 7], length 0
> 11:14:42.325261 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 1, win 1026, options 
> [nop,nop,TS val 3243610243 ecr 182595393], length 0
> 11:14:42.325422 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [P.], seq 1:518, ack 1, win 
> 1026, options [nop,nop,TS val 3243610243 ecr 182595393], length 517
> 11:14:42.325466 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], ack 518, win 232, options 
> [nop,nop,TS val 182595431 ecr 3243610243], length 0
> 11:14:42.333811 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 1:2857, ack 518, win 232, 
> options [nop,nop,TS val 182595433 ecr 3243610243], length 2856
> 11:14:42.333823 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [P.], seq 2857:3449, ack 518, win 232, 
> options [nop,nop,TS val 182595433 ecr 3243610243], length 592
> 11:14:42.483345 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 2857, win 981, options 
> [nop,nop,TS val 3243610401 ecr 182595433], length 0
> 11:14:42.487568 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [P.], seq 518:676, ack 3449, win 
> 1026, options [nop,nop,TS val 3243610401 ecr 182595433], length 158
> 11:14:42.488817 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [P.], seq 3449:3707, ack 676, win 240, 
> options [nop,nop,TS val 182595472 ecr 3243610401], length 258
> 11:14:42.637407 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [P.], seq 676:775, ack 3707, win 
> 1026, options [nop,nop,TS val 3243610555 ecr 182595472], length 99
> 11:14:42.675992 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], ack 775, win 240, options 
> [nop,nop,TS val 182595519 ecr 3243610555], length 0
> 11:14:42.805947 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 3707:6563, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805959 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 6563:9419, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805964 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 9419:12275, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805973 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 12275:15131, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805979 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 15131:17987, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.955114 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 6563, win 1004, options 
> [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:42.955143 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 9419, win 959, options 
> [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:42.955149 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 12275, win 1004, 
> options [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:42.955255 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 17987:20843, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955259 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 20843:23699, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955261 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 23699:26555, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955264 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 26555:29411, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955267 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 29411:32267, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955270 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 32267:35123, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955325 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 15131, win 959, options 
> [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:42.955359 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 35123:37979, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955362 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [FP.], seq 37979:39228, ack 775, win 
> 240, options [nop,nop,TS val 182595588 ecr 3243610873], length 1249
> 11:14:42.955415 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 17987, win 914, options 
> [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:43.103510 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 20843, win 981, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.103673 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 23699, win 937, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.104046 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 26555, win 892, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105628 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 29411, win 847, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105637 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 32267, win 803, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105639 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 35123, win 791, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105820 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 37979, win 747, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105878 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 39229, win 727, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.208472 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 39229, win 1025, 
> options [nop,nop,TS val 3243611120 ecr 182595588], length 0
> 11:14:43.220423 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [F.], seq 775, ack 39229, win 
> 1026, options [nop,nop,TS val 3243611130 ecr 182595588], length 0
> 11:14:43.220498 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], ack 776, win 240, options 
> [nop,nop,TS val 182595655 ecr 3243611130], length 0
> 11:14:44.060317 IP6 fe80::6e50:4dff:feae:a900.2029 > ff02::66.2029: 
> UDP, length 72
> 11:14:44.920621 IP6 fe80::caf9:f9ff:fe58:fb00.2029 > ff02::66.2029: 
> UDP, length 72
> 11:14:45.500748 IP6 fe80::caf9:f9ff:fe58:fb00 > ff02::5: OSPFv3, 
> Hello, length 36
>
> ** container
> ~# tcpdump -i eth0 ip6
> tcpdump: verbose output suppressed, use -v or -vv for full protocol 
> decode
> listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
> 11:14:41.186126 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [S], seq 4010901551, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243609104 ecr 0], length 0
> 11:14:41.186181 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.31183: Flags [S.], seq 2044967707, ack 4010901552, 
> win 28560, options [mss 1440,sackOK,TS val 182595146 ecr 
> 3243609104,nop,wscale 7], length 0
> 11:14:41.334787 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 1, win 1026, options 
> [nop,nop,TS val 3243609254 ecr 182595146], length 0
> 11:14:41.334936 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [F.], seq 1, ack 1, win 1026, 
> options [nop,nop,TS val 3243609254 ecr 182595146], length 0
> 11:14:41.334965 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.31183: Flags [F.], seq 1, ack 2, win 224, options 
> [nop,nop,TS val 182595183 ecr 3243609254], length 0
> 11:14:41.338129 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [S], seq 2137551393, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243609254 ecr 0], length 0
> 11:14:41.338177 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [S.], seq 2213057153, ack 2137551394, 
> win 28560, options [mss 1440,sackOK,TS val 182595184 ecr 
> 3243609254,nop,wscale 7], length 0
> 11:14:41.489387 IP6 2607:f2f8:a8e0::2.31183 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 2, win 1026, options 
> [nop,nop,TS val 3243609406 ecr 182595183], length 0
> 11:14:41.497862 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 1, win 1026, options 
> [nop,nop,TS val 3243609410 ecr 182595184], length 0
> 11:14:41.497940 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [P.], seq 1:68, ack 1, win 1026, 
> options [nop,nop,TS val 3243609410 ecr 182595184], length 67: HTTP: 
> GET / HTTP/1.0
> 11:14:41.497958 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [.], ack 68, win 224, options 
> [nop,nop,TS val 182595224 ecr 3243609410], length 0
> 11:14:41.498071 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [P.], seq 1:2273, ack 68, win 224, 
> options [nop,nop,TS val 182595224 ecr 3243609410], length 2272: HTTP: 
> HTTP/1.1 301 Moved Permanently
> 11:14:41.498138 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [FP.], seq 2273:2451, ack 68, win 224, 
> options [nop,nop,TS val 182595224 ecr 3243609410], length 178: HTTP
> 11:14:41.648538 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 2273, win 990, options 
> [nop,nop,TS val 3243609567 ecr 182595224], length 0
> 11:14:41.648541 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [.], ack 2452, win 988, options 
> [nop,nop,TS val 3243609567 ecr 182595224], length 0
> 11:14:41.696591 IP6 2607:f2f8:a8e0::2.22591 > 
> 2001:41d0:1007:1c79::101.http: Flags [F.], seq 68, ack 2452, win 1026, 
> options [nop,nop,TS val 3243609610 ecr 182595224], length 0
> 11:14:41.696623 IP6 2001:41d0:1007:1c79::101.http > 
> 2607:f2f8:a8e0::2.22591: Flags [.], ack 69, win 224, options 
> [nop,nop,TS val 182595274 ecr 3243609610], length 0
> 11:14:42.175090 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [S], seq 1761752329, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243610093 ecr 0], length 0
> 11:14:42.175120 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [S.], seq 477212830, ack 1761752330, 
> win 28560, options [mss 1440,sackOK,TS val 182595393 ecr 
> 3243610093,nop,wscale 7], length 0
> 11:14:42.325299 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 1, win 1026, options 
> [nop,nop,TS val 3243610243 ecr 182595393], length 0
> 11:14:42.325437 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [P.], seq 1:518, ack 1, win 
> 1026, options [nop,nop,TS val 3243610243 ecr 182595393], length 517
> 11:14:42.325458 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], ack 518, win 232, options 
> [nop,nop,TS val 182595431 ecr 3243610243], length 0
> 11:14:42.333798 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 1:2857, ack 518, win 232, 
> options [nop,nop,TS val 182595433 ecr 3243610243], length 2856
> 11:14:42.333820 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [P.], seq 2857:3449, ack 518, win 232, 
> options [nop,nop,TS val 182595433 ecr 3243610243], length 592
> 11:14:42.483362 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 2857, win 981, options 
> [nop,nop,TS val 3243610401 ecr 182595433], length 0
> 11:14:42.487600 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [P.], seq 518:676, ack 3449, win 
> 1026, options [nop,nop,TS val 3243610401 ecr 182595433], length 158
> 11:14:42.488804 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [P.], seq 3449:3707, ack 676, win 240, 
> options [nop,nop,TS val 182595472 ecr 3243610401], length 258
> 11:14:42.637441 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [P.], seq 676:775, ack 3707, win 
> 1026, options [nop,nop,TS val 3243610555 ecr 182595472], length 99
> 11:14:42.675950 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], ack 775, win 240, options 
> [nop,nop,TS val 182595519 ecr 3243610555], length 0
> 11:14:42.805930 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 3707:6563, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805956 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 6563:9419, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805962 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 9419:12275, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805971 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 12275:15131, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.805977 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 15131:17987, ack 775, win 240, 
> options [nop,nop,TS val 182595551 ecr 3243610555], length 2856
> 11:14:42.955158 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 6563, win 1004, options 
> [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:42.955209 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 17987:20843, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955217 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 20843:23699, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955161 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 9419, win 959, options 
> [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:42.955230 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 23699:26555, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955235 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], seq 26555:29411, ack 775, win 240, 
> options [nop,nop,TS val 182595588 ecr 3243610873], length 2856
> 11:14:42.955164 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 12275, win 1004, 
> options [nop,nop,TS val 3243610873 ecr 182595551], length 0
> 11:14:43.103533 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 20843, win 981, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.103678 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 23699, win 937, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.104058 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 26555, win 892, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105642 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 29411, win 847, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105643 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 32267, win 803, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105644 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 35123, win 791, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105833 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 37979, win 747, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.105883 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 39229, win 727, options 
> [nop,nop,TS val 3243611022 ecr 182595588], length 0
> 11:14:43.208484 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [.], ack 39229, win 1025, 
> options [nop,nop,TS val 3243611120 ecr 182595588], length 0
> 11:14:43.220453 IP6 2607:f2f8:a8e0::2.22592 > 
> 2001:41d0:1007:1c79::101.https: Flags [F.], seq 775, ack 39229, win 
> 1026, options [nop,nop,TS val 3243611130 ecr 182595588], length 0
> 11:14:43.220490 IP6 2001:41d0:1007:1c79::101.https > 
> 2607:f2f8:a8e0::2.22592: Flags [.], ack 776, win 240, options 
> [nop,nop,TS val 182595655 ecr 3243611130], length 0
>
>
> * Port 80 on non-working ipv6 container (2001:41d0:1007:1c79::102)
>
> ** host
> ~# tcpdump -i vmbr0 'ip6'
> tcpdump: verbose output suppressed, use -v or -vv for full protocol 
> decode
> listening on vmbr0, link-type EN10MB (Ethernet), capture size 262144 
> bytes
> 11:17:26.256927 IP6 fe80::caf9:f9ff:fe58:fb00 > ff02::5: OSPFv3, 
> Hello, length 36
> 11:17:26.557307 IP6 fe80::caf9:f9ff:fe58:fb00.2029 > ff02::66.2029: 
> UDP, length 72
> 11:17:29.002166 IP6 2607:f2f8:a8e0::2.35835 > 
> 2001:41d0:1007:1c79::102.http: Flags [S], seq 2186876053, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243776920 ecr 0], length 0
> 11:17:31.021729 IP6 2607:f2f8:a8e0::2.35836 > 
> 2001:41d0:1007:1c79::102.http: Flags [S], seq 27613106, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243778940 ecr 0], length 0
> 11:17:31.366822 IP6 fe80::6e50:4dff:feae:a900.2029 > ff02::66.2029: 
> UDP, length 72
> 11:17:33.430904 IP6 2607:f2f8:a8e0::2.35838 > 
> 2001:41d0:1007:1c79::102.https: Flags [S], seq 4010892160, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243781350 ecr 0], length 0
> 11:17:35.664950 IP6 fe80::caf9:f9ff:fe58:fb00 > ff02::5: OSPFv3, 
> Hello, length 36
> 11:17:36.029938 IP6 2607:f2f8:a8e0::2.35840 > 
> 2001:41d0:1007:1c79::102.https: Flags [S], seq 1369235300, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243783940 ecr 0], length 0
> 11:17:41.160933 IP6 fe80::caf9:f9ff:fe58:fb00.2029 > ff02::66.2029: 
> UDP, length 72
>
> ** container
> ~# tcpdump -i eth0 ip6
> tcpdump: verbose output suppressed, use -v or -vv for full protocol 
> decode
> listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
> 11:17:29.002199 IP6 2607:f2f8:a8e0::2.35835 > 
> 2001:41d0:1007:1c79::102.http: Flags [S], seq 2186876053, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243776920 ecr 0], length 0
> 11:17:31.021757 IP6 2607:f2f8:a8e0::2.35836 > 
> 2001:41d0:1007:1c79::102.http: Flags [S], seq 27613106, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243778940 ecr 0], length 0
> 11:17:33.430934 IP6 2607:f2f8:a8e0::2.35838 > 
> 2001:41d0:1007:1c79::102.https: Flags [S], seq 4010892160, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243781350 ecr 0], length 0
> 11:17:36.029967 IP6 2607:f2f8:a8e0::2.35840 > 
> 2001:41d0:1007:1c79::102.https: Flags [S], seq 1369235300, win 65535, 
> options [mss 1440,nop,wscale 6,sackOK,TS val 3243783940 ecr 0], length 0
>
> Le 18/08/2016 à 11:03, Wolfgang Bumiller a écrit :
>>> On August 18, 2016 at 10:41 AM Guillaume 
>>> <proxmox at shadowprojects.org> wrote:
>>>
>>>
>>> It is not a firewall issue, stopping it doesn't help.
>>>
>>> Le 18/08/2016 à 09:59, Guillaume a écrit :
>>>> And to add to the strangeness, i noticed that my first container
>>>> doesn't have the issue at all, but all the other ones have it.
>> - Is it the same setup? Maybe you forgot something?
>> - Bridged or routed?
>>    It looks like an OVH setup:
>>    * Bridged:
>>      + Did you make sure they all have valid MAC addresses correctly 
>> assigned to their
>>        IPv_4_ address?
>>    * Routed:
>>      + Did you add ndp neighbor proxy entries for them all (or are 
>> you using ndppd)?
>>
>> You should check with `tcpdump` where the packets or their responses 
>> get lost.
>>
>>
>
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