Hi!
I am trying to debug an issue that lies somewhere in Easynet / HE or
maybe SixXS.
Basic info:
I have a SixXS tunnel with my IP 2001:6f8:900:248::2/64 via POP
deham01.sixxs.net.
From my IP 2001:6f8:900:248::2:
1. I cannot ping at.archive.ubuntu.com/ubuntu.lagis.at - traceroute goes
via FRA and dies at 100ge11-1.core1.vie1.he.net
2. I can ping other parties that seems to peer via FRA, i.e.
www.nessus.at.
3. I can ping other SixXS tunnels, i.e. 2001:15c0:65ff:87c8::1 (again
via FRA).
When I try to debug via Easynet's route server rv0.telon.uk.easynet.net,
1. I cannot reach the problematic tunnel 2001:6f8:900:248::2
2. I cannot even reach the deham01.sixxs.net POP?
I would be happy if somebody would be able to assist me with some
debugging,
and/or give me pointers to whom I would be able to connect to.
Thanks,
Raoul
PS. I am fluent in German and English.
--
DI (FH) Raoul Bhatia M.Sc.
E-Mail. [email protected]
Tel. +43 699 10132530
I have re-activated my tunnel RRAB-RIPE/T3562 that was inactive for some time
now.
Unfortunately, I see routing issues via the POP deham01.sixxs.net to various
locations.
(Details can be found below)
I can see similar issues when using the easynet route server.
i.e. from T3562 (IP 2001:6f8:900:248::2) to at.archive.ubuntu.com
> $ ping6 -c3 at.archive.ubuntu.com
> PING at.archive.ubuntu.com(ubuntu.lagis.at) 56 data bytes
>
> --- at.archive.ubuntu.com ping statistics ---
> 3 packets transmitted, 0 received, 100% packet loss, time 2016ms
> $ tracepath6 at.archive.ubuntu.com
> 1?: [LOCALHOST] 0.019ms pmtu 1280
> 1: gw-585.ham-01.de.sixxs.net 26.517ms
> 1: gw-585.ham-01.de.sixxs.net 25.553ms
> 2: 2001:6f8:862:1::c2e9:c729 25.678ms asymm 1
> 3: vl2280.cr10.noham.nexinto.net 25.903ms asymm 2
> 4: 100ge7-2.core1.fra1.he.net 54.584ms asymm 5
> 5: 100ge14-1.core1.prg1.he.net 42.974ms asymm 6
> 6: 100ge11-1.core1.vie1.he.net 56.460ms asymm 7
> 7: no reply
> [...]
(does not complete successfully)
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From the route server rv0.telon.uk.easynet.net to
at.archive.ubuntu.com/2a00:1860:1:2::101:
> [email protected]> show route 2a00:1860:1:2::101
>
> inet6.0: 30399 destinations, 30400 routes (30062 active, 0 holddown, 338
> hidden)
> + = Active Route, - = Last Active, * = Both
>
> 2a00:1860::/32 *[BGP/170] 12w5d 22:06:48, MED 11000, localpref 100
> AS path: 13030 35369 I
> > to 2001:6f8:1:0:87:86:77:236 via ge-1/3/0.0
> [email protected]> traceroute 2a00:1860:1:2::101
> traceroute6 to 2a00:1860:1:2::101 (2a00:1860:1:2::101) from
> 2001:6f8:1:0:87:86:77:237, 30 hops max, 12 byte packets
> 1 2001:6f8:1:0:87:86:77:236 (2001:6f8:1:0:87:86:77:236) 23.166 ms 2.207
> ms 2.351 ms
> 2 r1lon2.core.init7.net (2001:1620:1000::1e5) 0.677 ms 0.802 ms 0.662 ms
> 3 r1vie1.core.init7.net (2001:1620:2::26d) 24.047 ms 24.024 ms 24.041 ms
> 4 r11-vix.core.lnz.net.lagis.at (2001:7f8:30:0:2:1:3:5369) 634.448 ms
> 27.932 ms 77.750 ms
> 5 2a00:1860:0:101::2 (2a00:1860:0:101::2) 27.597 ms 36.989 ms 27.381 ms
> 6 ubuntu.lagis.at (2a00:1860:1:2::101) 27.676 ms !P 27.478 ms !P 27.545
> ms !P
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From the route server rv0.telon.uk.easynet.net to my tunnel
> [email protected]> show route 2001:6f8:900:248::2
>
> inet6.0: 30404 destinations, 30405 routes (30067 active, 0 holddown, 338
> hidden)
> + = Active Route, - = Last Active, * = Both
>
> 2001:6f8::/32 *[BGP/170] 12w5d 22:08:56, MED 1000, localpref 150
> AS path: I
> > to 2001:6f8:1:0:87:86:77:236 via ge-1/3/0.0
> [email protected]> traceroute 2001:6f8:900:248::2
> traceroute6 to 2001:6f8:900:248::2 (2001:6f8:900:248::2) from
> 2001:6f8:1:0:87:86:77:237, 30 hops max, 12 byte packets
> 1 2001:6f8:1:0:87:86:77:236 (2001:6f8:1:0:87:86:77:236) 4.766 ms !N 5.559
> ms !N 5.678 ms !N
> [email protected]> ping 2001:6f8:900:248::2 count 3
> PING6(56=40+8+8 bytes) 2001:6f8:1:0:87:86:77:237 --> 2001:6f8:900:248::2
>
> --- 2001:6f8:900:248::2 ping6 statistics ---
> 3 packets transmitted, 0 packets received, 100% packet loss
So it seems that traffic dies at 2001:6f8:1:0:87:86:77:236 which is used for
both my tunnel and the destination at.archive.ubuntu.com.
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Pinging the router 2001:6f8:1:0:87:86:77:236 from various points:
A) From the route server
> [email protected]> ping 2001:6f8:1:0:87:86:77:236 count 3
> PING6(56=40+8+8 bytes) 2001:6f8:1:0:87:86:77:237 --> 2001:6f8:1:0:87:86:77:236
> 16 bytes from 2001:6f8:1:0:87:86:77:236, icmp_seq=0 hlim=64 time=6.485 ms
> 16 bytes from 2001:6f8:1:0:87:86:77:236, icmp_seq=1 hlim=64 time=3.052 ms
> 16 bytes from 2001:6f8:1:0:87:86:77:236, icmp_seq=2 hlim=64 time=20.315 ms
B) From the tunnel
> $ ping6 -c3 2001:6f8:1:0:87:86:77:236
> PING 2001:6f8:1:0:87:86:77:236(2001:6f8:1:0:87:86:77:236) 56 data bytes
>
> --- 2001:6f8:1:0:87:86:77:236 ping statistics ---
> 3 packets transmitted, 0 received, 100% packet loss, time 2014ms
C) Tracepath from the tunnel
> $ tracepath6 2001:6f8:1:0:87:86:77:236
> 1?: [LOCALHOST] 0.022ms pmtu 1280
> 1: gw-585.ham-01.de.sixxs.net 26.416ms
> 1: gw-585.ham-01.de.sixxs.net 26.295ms
> 2: 2001:6f8:862:1::c2e9:c729 25.563ms asymm 1
> 3: vl2280.cr10.noham.nexinto.net 25.869ms asymm 2
> 4: tengige0-0-0-2-111.er0.kgham.nexinto.net 27.082ms asymm 5
> 5: 2001:6f8:801:1:0:1a03:c240:811 30.307ms asymm 4
> 6: no reply
> 7: no reply
> 8: no reply
> 9: no reply
> 10: no reply
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SixXS DEBUG INFORMATION PER https://www.sixxs.net/contact/#problems
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### Handle & Tunnel
RRAB-RIPE/T3562
### AICCU version
> $ aiccu version
> AICCU 2007.01.15-console-linux by Jeroen Massar
> $ dpkg -l aiccu
> 20070115-15.2ubuntu1 amd64
### AICCU test
> [1/8]..[6/8] OK
> [7/8] Traceroute6 to the central SixXS machine (noc.sixxs.net)
> traceroute: unknown host noc.sixxs.net
> [8/8] [8/8] Traceroute6 to (www.kame.net)
> traceroute to orange.kame.net (2001:200:dff:fff1:216:3eff:feb1:44d7) from
> 2001:6f8:900:248::2, 30 hops max, 24 byte packets
> 1 gw-585.ham-01.de.sixxs.net (2001:6f8:900:248::1) 25.065 ms 24.406 ms
> 25.086 ms
> 2 2001:6f8:862:1::c2e9:c729 (2001:6f8:862:1::c2e9:c729) 24.941 ms 25.543
> ms 24.946 ms
> 3 vl2280.cr10.noham.nexinto.net (2001:6f8:862:1::c2e9:c72c) 25.487 ms
> 25.833 ms 24.933 ms
> 4 100ge7-2.core1.fra1.he.net (2001:7f8::1b1b:0:1) 37.799 ms 43.731 ms
> 38.651 ms
> 5 * * *
> 6 * * *
> [...]
> 29 * * *
> 30 * * *
### Internet Connection:
[Internet] <---> [Modem 10.0.0.138 w/ NAT & Switch] <---> [Linux 10.0.0.10/8]
### System information
> Ubuntu Linux 15.10/Wily, 64bit
> Kernel: Linux abc-server 4.2.0-27-generic #32-Ubuntu SMP Fri Jan 22 04:49:08
> UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
### Network information
> $ ip addr show
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
> default
> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> inet 127.0.0.1/8 scope host lo
> valid_lft forever preferred_lft forever
> inet6 ::1/128 scope host
> valid_lft forever preferred_lft forever
> 2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group
> default qlen 1000
> link/ether d0:bf:9c:46:fd:fc brd ff:ff:ff:ff:ff:ff
> inet 10.0.0.10/24 brd 10.0.0.255 scope global em1
> valid_lft forever preferred_lft forever
> inet6 fe80::d2bf:9cff:fe46:fdfc/64 scope link
> valid_lft forever preferred_lft forever
> 3: em2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
> group default qlen 1000
> link/ether d0:bf:9c:46:fd:fd brd ff:ff:ff:ff:ff:ff
> 4: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default
> link/sit 0.0.0.0 brd 0.0.0.0
> 7: sixxs: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1280 qdisc pfifo_fast
> state UNKNOWN group default qlen 500
> link/none
> inet6 2001:6f8:900:248::2/64 scope global
> valid_lft forever preferred_lft forever
> inet6 fe80::4f8:900:248:2/64 scope link
> valid_lft forever preferred_lft forever
### Route Information
> $ ip -6 route show
> 2001:6f8:900:248::/64 dev sixxs proto kernel metric 256 pref medium
> fe80::/64 dev em1 proto kernel metric 256 pref medium
> fe80::/64 dev sixxs proto kernel metric 256 pref medium
> default via 2001:6f8:900:248::1 dev sixxs metric 1024 pref medium
> $ ip route show
> default via 10.0.0.138 dev em1
> 10.0.0.0/24 dev em1 proto kernel scope link src 10.0.0.10
### IPTables information
> $ iptables-save
> # Generated by iptables-save v1.4.21 on Fri Jan 20 21:19:50 2017
> *mangle
> :PREROUTING ACCEPT [169588608:189143913546]
> :INPUT ACCEPT [169588255:189143841513]
> :FORWARD ACCEPT [0:0]
> :OUTPUT ACCEPT [78252394:157990499078]
> :POSTROUTING ACCEPT [78287301:157998869481]
> COMMIT
> # Completed on Fri Jan 20 21:19:50 2017
> # Generated by iptables-save v1.4.21 on Fri Jan 20 21:19:50 2017
> *raw
> :PREROUTING ACCEPT [169588608:189143913546]
> :OUTPUT ACCEPT [78252394:157990499078]
> COMMIT
> # Completed on Fri Jan 20 21:19:50 2017
> # Generated by iptables-save v1.4.21 on Fri Jan 20 21:19:50 2017
> *filter
> :INPUT ACCEPT [169588167:189143834593]
> :FORWARD ACCEPT [0:0]
> :OUTPUT ACCEPT [78252306:157990492158]
> :f2b-samba - [0:0]
> :f2b-sshd - [0:0]
> -A INPUT -p tcp -m multiport --dports 135,139,445,137,138 -j f2b-samba
> -A INPUT -p tcp -m multiport --dports 22 -j f2b-sshd
> -A f2b-samba -j RETURN
> -A f2b-sshd -j RETURN
> COMMIT
> # Completed on Fri Jan 20 21:19:50 2017
---
> ####### [3/8] Traceroute to the PoP (212.224.0.188) over IPv4
> ### This traceroute should reach the PoP
> ### In case this traceroute fails then you have no connectivity
> ### to the PoP and this is most probably the problem
>
> traceroute to 212.224.0.188 (212.224.0.188), 30 hops max, 60 byte packets
> 1 10.0.0.138 (10.0.0.138) 1.017 ms 1.424 ms 1.930 ms
> 2 62-47-39-254.adsl.highway.telekom.at (62.47.39.254) 9.412 ms 9.749 ms
> 10.021 ms
> 3 * * *
> 4 * * *
> 5 te0-2-1-0.gr11.ixfra.de.easynet.net (80.81.192.14) 19.217 ms 23.660 ms
> 24.022 ms
> 6 87-86-77-8.easynet.net (87.86.77.8) 24.419 ms 15.010 ms 15.559 ms
> 7 te0-0-0-0.gr10.kgham.de.easynet.net (87.86.77.168) 30.134 ms 30.544 ms
> 30.873 ms
> 8 te0-1-0-0.gr11.kgham.de.easynet.net (87.86.77.83) 31.758 ms 31.336 ms
> 28.236 ms
> 9 194.64.8.16 (194.64.8.16) 24.081 ms 24.914 ms 27.619 ms
> 10 * * *
> 11 * * *
> 12 deham01.sixxs.net (212.224.0.188) 28.146 ms 28.104 ms 28.071 ms
> $ tracepath deham01.sixxs.net.
> 1?: [LOCALHOST] pmtu 1500
> 1: 10.0.0.138 0.782ms
> 1: 10.0.0.138 0.872ms
> 2: 62-47-39-254.adsl.highway.telekom.at 4.614ms
> 3: no reply
> 4: lg1-1171.as8447.a1.net 17.816ms
> 5: te0-2-1-0.gr11.ixfra.de.easynet.net 15.713ms
> 6: 87-86-77-8.easynet.net 15.959ms
> 7: te0-0-0-0.gr10.kgham.de.easynet.net 27.983ms asymm 8
> 8: te0-1-0-0.gr11.kgham.de.easynet.net 26.239ms
> 9: 194.64.8.16 25.690ms
> 10: no reply
> 11: no reply
> 12: deham01.sixxs.net 26.380ms reached
> Resume: pmtu 1500 hops 12 back 10
