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Ticket ID: SIXXS #1211894 Ticket Status: User PoP: deham01 - Easynet (Hamburg)
My subnet isn't routed anymore
![[de]](/s/countries/de.gif) Carmen Sandiego on Wednesday, 23 September 2009 22:57:42
My Handle: TN873-RIPE
My IP: 78.46.215.78
My v6: 2001:6f8:900:6d0::2
My Prefix: 2001:6f8:90f::/48
My host is "Linux azrael 2.6.26-2-686 #1 SMP Thu May 28 15:39:35 UTC 2009 i686 GNU/Linux". I didn't changed my setup and all worked for weeks until today.
My host handles some openvpn tunnels to get my subnet out to my other boxes.
The sixxs tunnel works and i can transfer data. If i try to send data from an ip out of the prefix (both, tunnel endpoint and other hosts), i get no answear. It seems that deham01 doesn't route my subnet.
CrtxReavr (#sixxs.net on ircnet) was so nice to help me to debug this, i attached his traceroute.
The Problem is there since Sep 23 10:24:03 2009 German time. So in UTC 23. September 2009, 08:24:03.
I hope you can help me...
ifconfig from my tunnel endpoint:
eth0 Link encap:Ethernet Hardware Adresse 52:54:00:12:34:56
inet Adresse:78.46.215.78 Bcast:78.46.215.79 Maske:255.255.255.248
inet6-Adresse: 2001:6f8:90f:1::1/64 Gltigkeitsbereich:Global
inet6-Adresse: fe80::5054:ff:fe12:3456/64 Gltigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1
RX packets:12448655 errors:0 dropped:0 overruns:0 frame:0
TX packets:13852144 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlnge:1000
RX bytes:3536132246 (3.2 GiB) TX bytes:2093244832 (1.9 GiB)
Interrupt:10 Basisadresse:0xc100
lo Link encap:Lokale Schleife
inet Adresse:127.0.0.1 Maske:255.0.0.0
inet6-Adresse: ::1/128 Gltigkeitsbereich:Maschine
UP LOOPBACK RUNNING MTU:16436 Metrik:1
RX packets:2997890 errors:0 dropped:0 overruns:0 frame:0
TX packets:2997890 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlnge:0
RX bytes:326203199 (311.0 MiB) TX bytes:326203199 (311.0 MiB)
sixxs Link encap:IPv6-nach-IPv4
inet6-Adresse: 2001:6f8:900:6d0::2/64 Gltigkeitsbereich:Global
inet6-Adresse: fe80::4e2e:d74e/64 Gltigkeitsbereich:Verbindung
UP PUNKTZUPUNKT RUNNING NOARP MTU:1280 Metrik:1
RX packets:1728169 errors:0 dropped:0 overruns:0 frame:0
TX packets:1682426 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlnge:0
RX bytes:1000949741 (954.5 MiB) TX bytes:172154655 (164.1 MiB)
tun0 Link encap:UNSPEC Hardware Adresse 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6-Adresse: 2001:6f8:90f:35:3::1/112 Gltigkeitsbereich:Global
inet6-Adresse: fe80::35:3:1/64 Gltigkeitsbereich:Verbindung
UP PUNKTZUPUNKT RUNNING NOARP MULTICAST MTU:1500 Metrik:1
RX packets:5476 errors:0 dropped:0 overruns:0 frame:0
TX packets:5466 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlnge:100
RX bytes:523983 (511.7 KiB) TX bytes:3008353 (2.8 MiB)
tun1 Link encap:UNSPEC Hardware Adresse 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6-Adresse: 2001:6f8:90f:35:1::1/112 Gltigkeitsbereich:Global
inet6-Adresse: fe80::35:1:1/64 Gltigkeitsbereich:Verbindung
UP PUNKTZUPUNKT RUNNING NOARP MULTICAST MTU:1500 Metrik:1
RX packets:1244980 errors:0 dropped:0 overruns:0 frame:0
TX packets:1248792 errors:0 dropped:287 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlnge:100
RX bytes:166600160 (158.8 MiB) TX bytes:964819688 (920.1 MiB)
netstat -rn6:
Kernel-IPv6-Routentabelle
Destination Next Hop Flag Met Ref Use If
2001:6f8:900:6d0::/64 :: Un 256 0 50401 sixxs
2001:6f8:90f:1::/64 :: U 256 0 0 eth0
2001:6f8:90f:35:1::/112 :: U 256 0 1 tun1
2001:6f8:90f:35:3::/112 :: U 256 0 1 tun0
2001:6f8:90f:50::/64 2001:6f8:90f:35:1::2 UG 1 0278162 tun1
2001:6f8:90f:80::/64 2001:6f8:90f:35:3::2 UG 1 0 1808 tun0
fe80::/64 :: U 256 0 0 eth0
fe80::/64 :: Un 256 0 0 sixxs
fe80::/64 :: U 256 0 0 tun0
fe80::/64 :: U 256 0 0 tun1
::/0 2001:6f8:900:6d0::1 UG 1024 1400827 sixxs
::/0 :: !n -1 1733045 lo
::1/128 :: Un 0 1 8349 lo
2001:6f8:900:6d0::/128 :: Un 0 1 0 lo
2001:6f8:900:6d0::2/128 :: Un 0 1204794 lo
2001:6f8:90f:1::/128 :: Un 0 1 0 lo
2001:6f8:90f:1::1/128 :: Un 0 12163483 lo
2001:6f8:90f:35:1::/128 :: Un 0 1 0 lo
2001:6f8:90f:35:1::1/128 :: Un 0 1 0 lo
2001:6f8:90f:35:3::/128 :: Un 0 1 0 lo
2001:6f8:90f:35:3::1/128 :: Un 0 1 2 lo
fe80::/128 :: Un 0 1 0 lo
fe80::/128 :: Un 0 1 0 lo
fe80::/128 :: Un 0 1 0 lo
fe80::/128 :: Un 0 1 0 lo
fe80::4e2e:d74e/128 :: Un 0 1 0 lo
fe80::35:1:1/128 :: Un 0 1 0 lo
fe80::35:3:1/128 :: Un 0 1 0 lo
fe80::5054:ff:fe12:3456/128 :: Un 0 1 0 lo
ff00::/8 :: U 256 0 0 eth0
ff00::/8 :: U 256 0 0 sixxs
ff00::/8 :: U 256 0 0 tun0
ff00::/8 :: U 256 0 0 tun1
::/0 :: !n -1 1733045 lo
netstat -rn:
Kernel-IP-Routentabelle
Ziel Router Genmask Flags MSS Fenster irtt Iface
78.46.215.74 78.46.215.73 255.255.255.255 UGH 0 0 0 eth0
78.46.215.75 78.46.215.73 255.255.255.255 UGH 0 0 0 eth0
78.46.215.72 0.0.0.0 255.255.255.248 U 0 0 0 eth0
0.0.0.0 78.46.215.73 0.0.0.0 UG 0 0 0 eth0
The traceroute from outside (thanks to CrtxReavr):
crtxreavr@neuron-/home/crtxreavr$ traceroute6 2001:6f8:90f:35:1::1
traceroute6 to 2001:6f8:90f:35:1::1 (2001:6f8:90f:35:1::1) from 2001:4978:f:88::2, 64 hops max, 12 byte packets
1 gw-137.chi-02.us.sixxs.net 26.351 ms 25.815 ms 25.217 ms
2 sixxs.ge-0.0.0-30.core1.chi.bb6.your.org 25.844 ms 28.278 ms 26.593 ms
3 gige-g2-19.core1.chi1.he.net 37.838 ms 26.137 ms 35.451 ms
4 10gigabitethernet2-4.core1.nyc4.he.net 54.832 ms 57.110 ms 61.569 ms
5 10gigabitethernet1-2.core1.nyc1.he.net 60.951 ms 62.724 ms 56.202 ms
6 2001:458:26:2::580 50.211 ms 52.808 ms 50.078 ms
7 2001:6f8:1:0:87:86:77:112 122.051 ms 118.873 ms 121.295 ms
8 2001:6f8:1:0:87:86:77:21 129.042 ms 130.760 ms 156.524 ms
9 2001:6f8:1:0:87:86:77:59 136.043 ms 245.186 ms 216.855 ms
10 2001:6f8:1:0:87:86:77:115 147.028 ms 144.487 ms 138.409 ms
11 2001:6f8:1:0:87:86:71:229 146.786 ms 135.985 ms 139.018 ms
12 ge1-14-151.br3.isham.de.easynet.net 154.281 ms 149.807 ms 148.900 ms
13 ge9-15.cr20.isham.de.easynet.net 152.904 ms 154.956 ms 146.521 ms
14 deham01.sixxs.net 165.392 ms !N 153.796 ms !N 154.648 ms !N
crtxreavr@neuron-/home/crtxreavr$ traceroute6 2001:6f8:900:6d0::2
traceroute6 to 2001:6f8:900:6d0::2 (2001:6f8:900:6d0::2) from 2001:4978:f:88::2, 64 hops max, 12 byte packets
1 gw-137.chi-02.us.sixxs.net 31.864 ms 32.147 ms 28.350 ms
2 sixxs.ge-0.0.0-30.core1.chi.bb6.your.org 32.084 ms 34.520 ms 29.346 ms
3 gige-g2-19.core1.chi1.he.net 35.092 ms 42.624 ms 36.597 ms
4 10gigabitethernet2-4.core1.nyc4.he.net 54.327 ms 50.131 ms 48.954 ms
5 10gigabitethernet1-2.core1.nyc1.he.net 55.333 ms 64.090 ms 54.206 ms
6 2001:458:26:2::580 50.335 ms 59.318 ms 61.567 ms
7 *
2001:6f8:1:0:87:86:77:112 125.017 ms 128.816 ms
8 2001:6f8:1:0:87:86:77:21 139.530 ms 202.872 ms 212.472 ms
9 2001:6f8:1:0:87:86:77:59 135.299 ms 132.718 ms 127.162 ms
10 2001:6f8:1:0:87:86:77:115 324.135 ms 179.513 ms 210.998 ms
11 2001:6f8:1:0:87:86:71:229 141.031 ms 145.487 ms 141.904 ms
12 ge1-13-140.br2.isham.de.easynet.net 154.029 ms 149.838 ms 150.644 ms
13 ge7-1.cr20.isham.de.easynet.net 150.283 ms 155.161 ms 157.148 ms
14 deham01.sixxs.net 153.778 ms 150.966 ms 150.640 ms
15 cl-1745.ham-01.de.sixxs.net 172.396 ms 171.491 ms 168.145 ms
crtxreavr@neuron-/home/crtxreavr$
State change: user
The state of this ticket has been changed to user
My subnet isn't routed anymore
Your log indicates that you have disabled and then re-enabled the tunnel. That of course does not have any effect at all.
My subnet isn't routed anymore
Carmen Sandiego on Thursday, 24 September 2009 08:43:41
Yes, i dis/enabled the subnet, but that was hours after the problem occurs. Yesterday evening right after i wrote this ticket, i went to bed. Now, actually i got out of it, the subnet is correct routed.
Your reply doesn't show that you cleared the problem, and it doesn't show that you know why there was this problem. I think it would be a good idea not to close this ticket before.
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![[ch]](/s/countries/ch.gif)
on Thursday, 24 September 2009 01:45:04
Posting is only allowed when you are