Comments (6)
nitefood
commented on July 23, 2024
Hey @paulmenzel,
apparently you get no AS resolution after the BCIX hop (n.5), which is odd. From your trace I reckon the script fails to output AS info for both AS680 hops (n.6 and n.10). Is this behavior reproducible with other paths/AS numbers that you can tell, or does it happen only for AS680? Was this a one-off error or does it keep happening?
I tried locally and am unable to reproduce the behavior, plus all AS680 hops resolve fine:
╭─────────────────────╮
│ Trace to charite.de │
╰─────────────────────╯
Hop IP Address Loss% Ping avg AS Information
1. 172.18.112.1 0% 0.2 ms BOGON rfc1918 (Private Space)
2. 192.168.10.1 0% 0.5 ms BOGON rfc1918 (Private Space)
3. 10.0.0.1 0% 1.1 ms BOGON rfc1918 (Private Space)
4. 93-43-50-65.ip90.fastwebnet.it (93.43.50.65) 0% 6.2 ms [AS12874] FASTWEB, IT
5. 93-61-50-1.ip145.fastwebnet.it (93.61.50.1) 0% 2.5 ms [AS12874] FASTWEB, IT
6. ??? 100% * (No reply)
7. ??? 100% * (No reply)
8. 10.254.20.241 0% 7.5 ms BOGON rfc1918 (Private Space)
9. 89-97-200-190.ip19.fastwebnet.it (89.97.200.190) 0% 6.6 ms [AS12874] FASTWEB, IT
10. 62-101-124-25.fastres.net (62.101.124.25) 0% 16.0 ms [AS12874] FASTWEB, IT
11. cr-erl2-be1.x-win.dfn.de (80.81.193.222) 0% 28.0 ms IXP DE-CIX Frankfurt ()
12. cr-tub2-be10.x-win.dfn.de (188.1.146.210) 0% 37.2 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
13. kr-charit1.x-win.dfn.de (188.1.235.78) 0% 37.9 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
14. barrier.charite.de (193.175.73.8) 0% 44.1 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
15. fw-keeep-globaltransit.charite.de (141.42.5.249) 0% 41.2 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
16. s-www-gw.charite.de (141.42.206.113) 0% 42.1 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
Trace completed in 15 seconds on 2023-02-20 20:30:08 CET
╭───────────────────────╮
│ AS path to charite.de │
╰───────────────────────╯
207013 WIFLY-AS (Local AS)
╭╯
╰12874 FASTWEB
╭╯
╰ IXP DE-CIX Frankfurt ()
╭╯
╰680 DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
from asn.
paulmenzel
commented on July 23, 2024
Yesterday it only happened with a few more domains but with others – also in DFN – it was fine.
╭────────────────────────────╮
│ Trace to www.mpimet.mpg.de │
╰────────────────────────────╯
Hop IP Address Loss% Ping avg AS Information
1. o2.box (192.168.1.1) 60% 0.8 ms BOGON rfc1918 (Private Space)
2. loopback1.0002.acln.01.ber.de.net.telefonica.de (62.52.201.185) 80% 21.7 ms [AS6805] TDDE-ASN1, DE
3. bundle-ether16.0003.dbrx.01.ber.de.net.telefonica.de (62.53.2.84) 80% 6.8 ms [AS6805] TDDE-ASN1, DE
4. ae1-0.0001.prrx.01.ber.de.net.telefonica.de (62.53.11.125) 80% 7.2 ms [AS6805] TDDE-ASN1, DE
5. dfn.bcix.de (193.178.185.42) 40% 17.1 ms IXP BCIX (Berlin Commercial Internet Exchange)
6. cr-ham1-be8.x-win.dfn.de (188.1.144.57) 60% 20.1 ms (WIN-IP / IP networking on DFN's Wissenschaftsnetz "X-WiN")
7. ??? 100% * (No reply)
8. ??? 100% * (No reply)
9. ??? 100% * (No reply)
10. www.mpimet.mpg.de (136.172.142.6) 60% 23.2 ms (RIPE-ERX-136-172-0-0 / RIPE Network Coordination Centre)
Trace completed in 36 seconds on 2023-02-20 08:17:44 CET
╭──────────────────────────────╮
│ AS path to www.mpimet.mpg.de │
╰──────────────────────────────╯
6805 TDDE-ASN1 (Local AS)
╭╯
╰ IXP BCIX (Berlin Commercial Internet Exchange)
╭─────────────────────────────────────╮
│ Trace to amerika.zedat.fu-berlin.de │
╰─────────────────────────────────────╯
Hop IP Address Loss% Ping avg AS Information
1. o2.box (192.168.1.1) 80% 0.5 ms BOGON rfc1918 (Private Space)
2. loopback1.0002.acln.01.ber.de.net.telefonica.de (62.52.201.185) 80% 6.8 ms [AS6805] TDDE-ASN1, DE
3. bundle-ether16.0004.dbrx.01.ber.de.net.telefonica.de (62.53.2.94) 80% 6.8 ms [AS6805] TDDE-ASN1, DE
4. ae2-0.0001.prrx.01.ber.de.net.telefonica.de (62.53.11.127) 80% 6.3 ms [AS6805] TDDE-ASN1, DE
5. dfn.bcix.de (193.178.185.42) 20% 16.9 ms IXP BCIX (Berlin Commercial Internet Exchange)
6. kr-tub272-0.x-win.dfn.de (188.1.235.242) 80% 17.2 ms (WIN-IP / IP networking on DFN's Wissenschaftsnetz "X-WiN")
7. ??? 100% * (No reply)
8. ??? 100% * (No reply)
9. ??? 100% * (No reply)
10. s51-7010-core-eth1-1.router.fu-berlin.de (160.45.246.38) 20% 17.3 ms (FULAN / Freie Universitaet Berlin)
11. amerika.router.fu-berlin.de (130.133.2.1) 80% 16.9 ms (RIPE-ERX-130-133-0-0 / RIPE Network Coordination Centre)
Trace completed in 44 seconds on 2023-02-20 08:43:26 CET
╭───────────────────────────────────────╮
│ AS path to amerika.zedat.fu-berlin.de │
╰───────────────────────────────────────╯
6805 TDDE-ASN1 (Local AS)
╭╯
╰ IXP BCIX (Berlin Commercial Internet Exchange)
╭───────────────────────────╮
│ Trace to www.tu-berlin.de │
╰───────────────────────────╯
Hop IP Address Loss% Ping avg AS Information
1. o2.box (192.168.1.1) 80% 0.7 ms BOGON rfc1918 (Private Space)
2. loopback1.0002.acln.01.ber.de.net.telefonica.de (62.52.201.185) 80% 6.5 ms [AS6805] TDDE-ASN1, DE
3. ??? 100% * (No reply)
4. ae2-0.0001.prrx.01.ber.de.net.telefonica.de (62.53.11.127) 80% 6.2 ms [AS6805] TDDE-ASN1, DE
5. dfn.bcix.de (193.178.185.42) 20% 16.7 ms IXP BCIX (Berlin Commercial Internet Exchange)
6. kr-tub248.x-win.dfn.de (188.1.235.118) 80% 16.8 ms (WIN-IP / IP networking on DFN's Wissenschaftsnetz "X-WiN")
7. ??? 100% * (No reply)
8. ??? 100% * (No reply)
9. ??? 100% * (No reply)
10. tu-berlin.de (130.149.7.201) 20% 18.1 ms (RIPE-ERX-130-138-0-0 / RIPE Network Coordination Centre)
Trace completed in 36 seconds on 2023-02-20 08:44:17 CET
╭─────────────────────────────╮
│ AS path to www.tu-berlin.de │
╰─────────────────────────────╯
6805 TDDE-ASN1 (Local AS)
╭╯
╰ IXP BCIX (Berlin Commercial Internet Exchange)
Others worked:
╭──────────────────────────────────────╮
│ Trace to bigbluebutton.molgen.mpg.de │
╰──────────────────────────────────────╯
Hop IP Address Loss% Ping avg AS Information
1. o2.box (192.168.1.1) 80% 0.6 ms BOGON rfc1918 (Private Space)
2. loopback1.0002.acln.01.ber.de.net.telefonica.de (62.52.201.185) 80% 14.2 ms [AS6805] TDDE-ASN1, DE
3. bundle-ether16.0004.dbrx.01.ber.de.net.telefonica.de (62.53.2.94) 80% 7.2 ms [AS6805] TDDE-ASN1, DE
4. ae2-0.0001.prrx.01.ber.de.net.telefonica.de (62.53.11.127) 80% 5.9 ms [AS6805] TDDE-ASN1, DE
5. dfn.bcix.de (193.178.185.42) 20% 17.2 ms IXP BCIX (Berlin Commercial Internet Exchange)
6. ??? 100% * (No reply)
7. ??? 100% * (No reply)
8. ??? 100% * (No reply)
9. ??? 100% * (No reply)
10. bigbluebutton.molgen.mpg.de (141.14.15.170) 20% 18.7 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
Trace completed in 14 seconds on 2023-02-20 08:13:21 CET
╭────────────────────────────────────────╮
│ AS path to bigbluebutton.molgen.mpg.de │
╰────────────────────────────────────────╯
6805 TDDE-ASN1 (Local AS)
╭╯
╰ IXP BCIX (Berlin Commercial Internet Exchange)
╭╯
╰680 DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
╭───────────────────────────────╮
│ Trace to www.mpim-bonn.mpg.de │
╰───────────────────────────────╯
Hop IP Address Loss% Ping avg AS Information
1. o2.box (192.168.1.1) 80% 0.8 ms BOGON rfc1918 (Private Space)
2. loopback1.0002.acln.01.ber.de.net.telefonica.de (62.52.201.185) 80% 7.0 ms [AS6805] TDDE-ASN1, DE
3. bundle-ether16.0003.dbrx.01.ber.de.net.telefonica.de (62.53.2.84) 80% 7.2 ms [AS6805] TDDE-ASN1, DE
4. ae1-0.0001.prrx.01.ber.de.net.telefonica.de (62.53.11.125) 80% 7.2 ms [AS6805] TDDE-ASN1, DE
5. dfn.bcix.de (193.178.185.42) 20% 16.9 ms IXP BCIX (Berlin Commercial Internet Exchange)
6. cr-han2-be7.x-win.dfn.de (188.1.144.137) 80% 18.4 ms (WIN-IP / IP networking on DFN's Wissenschaftsnetz "X-WiN")
7. ??? 100% * (No reply)
8. ??? 100% * (No reply)
9. ??? 100% * (No reply)
10. 195.37.234.33 20% 19.6 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
11. out (195.37.209.187) 80% 26.2 ms [AS680] DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
Trace completed in 31 seconds on 2023-02-20 08:18:44 CET
╭─────────────────────────────────╮
│ AS path to www.mpim-bonn.mpg.de │
╰─────────────────────────────────╯
6805 TDDE-ASN1 (Local AS)
╭╯
╰ IXP BCIX (Berlin Commercial Internet Exchange)
╭╯
╰680 DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
from asn.
nitefood
commented on July 23, 2024
Would you mind sharing the output of:
whois 188.1.144.57 | grep -i -E "^netname:|^orgname:|^org-name:|^owner:|^descr:|^country:" | grep -i -E "^orgname:|^org-name:|^owner:" | cut -d ':' -f 2 | sed 's/^[ \t]*//' | while read -r line; do echo -n "$line / "; done | sed 's/ \/ $//'
and
host -t TXT "57.144.1.188.origin.asn.cymru.com" | awk -F'"' 'NR==1{print $2}' | sed 's/\ *|\ */|/g'
from the machine you ran the traces from?
I'm under the impression you're getting different whois / Team Cymru DNS lookup results than I am. For example in your first trace, when I run it locally I also pass through the hop cr-ham1-be8.x-win.dfn.de (188.1.144.57), but unlike your output (which appears to be a fallback whois lookup), my asn maps that correctly to AS680 (and that happens through a DNS lookup using Team Cymru).
Also (shooting in the dark here), but is that high packet loss percentage in your traces normal?
from asn.
paulmenzel
commented on July 23, 2024
$ whois 188.1.144.57 | grep -i -E "^netname:|^orgname:|^org-name:|^owner:|^descr:|^country:" | grep -i -E "^orgname:|^org-name:|^owner:" | cut -d ':' -f 2 | sed 's/^[ \t]*//' | while read -r line; do echo -n "$line / "; done | sed 's/ \/ $//'
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
$ host -t TXT "57.144.1.188.origin.asn.cymru.com" | awk -F'"' 'NR==1{print $2}' | sed 's/\ *|\ */|/g'
680|188.1.0.0/16|DE|ripencc|1994-08-05
from asn.
paulmenzel
commented on July 23, 2024
Also (shooting in the dark here), but is that high packet loss percentage in your traces normal?
No idea, where that comes from.
$ mtr -z -s 10 -r -c 10 bigbluebutton.molgen.mpg.de
Start: 2023-03-08T21:54:34+0100
HOST: ersatz Loss% Snt Last Avg Best Wrst StDev
1. AS??? o2.box 90.0% 10 0.6 0.6 0.6 0.6 0.0
2. AS6805 loopback1.0003.acln 90.0% 10 6.5 6.5 6.5 6.5 0.0
3. AS6805 ae14-0.0002.dbrx.02 90.0% 10 6.7 6.7 6.7 6.7 0.0
4. AS6805 ae1-0.0002.prrx.02. 90.0% 10 6.4 6.4 6.4 6.4 0.0
5. AS??? dfn.bcix.de 10.0% 10 17.0 17.3 17.0 17.6 0.2
6. AS??? ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
7. AS??? ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
8. AS??? ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
9. AS??? ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
10. AS680 bigbluebutton.molge 10.0% 10 17.5 17.5 17.1 18.1 0.3
There is no packet loss with ping.
$ ping -c10 o2.box
PING o2.box(_gateway (fe80::1%eno1)) 56 data bytes
64 bytes from _gateway (fe80::1%eno1): icmp_seq=1 ttl=64 time=0.615 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=2 ttl=64 time=0.720 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=3 ttl=64 time=0.673 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=4 ttl=64 time=0.577 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=5 ttl=64 time=0.589 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=6 ttl=64 time=0.573 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=7 ttl=64 time=0.550 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=8 ttl=64 time=0.575 ms
64 bytes from _gateway (fe80::1%eno1): icmp_seq=9 ttl=64 time=0.680 ms
64 bytes from fe80::1%eno1: icmp_seq=10 ttl=64 time=0.603 ms
--- o2.box ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 13499ms
rtt min/avg/max/mdev = 0.550/0.615/0.720/0.053 ms
from asn.
nitefood
commented on July 23, 2024
Hello @paulmenzel,
have there been any changes lately to your results? I still find this puzzling, because I cannot reproduce this behavior in any way on any of my test boxes.
Curious if it was just a temporary network hiccup (those latencies), or Cymru fault (the missing output), or the behavior is consistent.
Have a nice day!
from asn.
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