5 ms·

Show HN: Asroute – View unique networks traversed by traceroute

58 points by steven_pack 6y ago

smnv 6y ago
mtr -z? I mean, it is a good learning effort, but if someone doesn’t know about mtr, they should: https://bitwizard.nl/mtr/ https://bitwizard.nl/mtr/
- iso1210 6y ago
  To be fair the man page on my nearest ubuntu machine says -z, --aslookup MISSING I assume from the context that it does the mtr equiv "traceroute -A" though
- JosephRedfern 6y ago
  This just shows AS number rather than name, though, right?
- steven_pack 6y ago
  -z only shows AS numbers, not names. The point of this is to quickly tell you companies and networks you recognize. Also, mtr requires sudo to run.
dmytton 6y ago
Traceroute is fine for casual analysis but it is inaccurate and/or incomplete for anything serious because it misses routers that use load balancing on packet headers. For research purposes, it's better to use Paris Traceroute: https://paris-traceroute.net https://paris-traceroute.net > Why should you use Paris traceroute? > Because traceroute fails in the presence of routers that employ load balancing on packet header fields. The failures lead to the discovery of inaccurate and incomplete paths, that may mislead operators during problem diagnosis and result in erroneous internet maps. Paris traceroute, by controling packet header contents, obtains a more precise picture of the actual routes that packets follow.
- travbrack 6y ago
  This looks neat. Do you know what specifically it does differently than the traditional one? The blurb is vague and the "learn more" link is dead.
  - gpvos 6y ago
    Try the "about" link at the top.
    - travbrack 6y ago
      Ah, wasn't showing up on mobile
  - dmytton 6y ago
    There is also the paper that introduced it at https://paris-traceroute.net/images/imc2006.pdf https://paris-traceroute.net/images/imc2006.pdf
- cmroanirgo 6y ago
  just stumbled across: https://www.dublin-traceroute.net https://www.dublin-traceroute.net > Dublin Traceroute uses the techniques invented by the authors of Paris-traceroute to enumerate the paths of ECMP flow-based load balancing, but introduces a new technique for NAT detection.
  - jlgaddis 6y ago
    There are also Python bindings [0] for dublin-traceroute which allows things like analysis with pandas or generating charts. --- [0]: https://github.com/insomniacslk/python-dublin-traceroute https://github.com/insomniacslk/python-dublin-traceroute
- 052c7028e 6y ago
  Akamai uses something similar to perform trace routes in-band of HTTP TCP sessions to clients: https://datatracker.ietf.org/meeting/94/materials/slides-94-hopsrg-4 https://datatracker.ietf.org/meeting/94/materials/slides-94-...
jart 6y ago
If anyone's curious how the tool is obtaining this information: $ dig +short TXT 8.8.8.8.origin.asn.cymru.com "15169 | 8.8.8.0/24 | US | arin | 1992-12-01" $ dig +short TXT AS15169.asn.cymru.com "15169 | US | arin | 2000-03-30 | GOOGLE, US" See also https://team-cymru.com/community-services/ip-asn-mapping/#dns https://team-cymru.com/community-services/ip-asn-mapping/#dn...
samoa42 6y ago
while the as_number->as_name lookup is usefull i would have opted for adding this feature to one (or more) of the existing utilities (traceroute, mtr, paris-traceroute) instead of crafting yet another command.
- jlgaddis 6y ago
  FWIW: $ traceroute -A ... $ mtr -z ...
  - steven_pack 6y ago
    -A gets you the AS, my tool looks up the name. So you can see "Oh, it goes from Comcast, to Cogent to Google." cool. Rather than ASNs which you don't immediately recognize.
wooad123567890 6y ago
wooad กานางบ้านเอเจการนางพินผ้ามฝ้ายนางลังวางห้วงนางบ้านยื่องาน
jlgaddis 6y ago
Related: "Traceroute Lies! A Typical Misinterpretation Of Output" [0], previously discussed here on HN [1]. --- [0]: https://movingpackets.net/2017/10/06/misinterpreting-traceroute/ https://movingpackets.net/2017/10/06/misinterpreting-tracero... [1]: https://news.ycombinator.com/item?id=15474043 https://news.ycombinator.com/item?id=15474043

58 points by steven_pack 6y ago

smnv 6y ago

mtr -z? I mean, it is a good learning effort, but if someone doesn’t know about mtr, they should: https://bitwizard.nl/mtr/ https://bitwizard.nl/mtr/

iso1210 6y ago
To be fair the man page on my nearest ubuntu machine says -z, --aslookup MISSING I assume from the context that it does the mtr equiv "traceroute -A" though
JosephRedfern 6y ago
This just shows AS number rather than name, though, right?
steven_pack 6y ago
-z only shows AS numbers, not names. The point of this is to quickly tell you companies and networks you recognize. Also, mtr requires sudo to run.

dmytton 6y ago

Traceroute is fine for casual analysis but it is inaccurate and/or incomplete for anything serious because it misses routers that use load balancing on packet headers. For research purposes, it's better to use Paris Traceroute: https://paris-traceroute.net https://paris-traceroute.net > Why should you use Paris traceroute? > Because traceroute fails in the presence of routers that employ load balancing on packet header fields. The failures lead to the discovery of inaccurate and incomplete paths, that may mislead operators during problem diagnosis and result in erroneous internet maps. Paris traceroute, by controling packet header contents, obtains a more precise picture of the actual routes that packets follow.

travbrack 6y ago
This looks neat. Do you know what specifically it does differently than the traditional one? The blurb is vague and the "learn more" link is dead.
- gpvos 6y ago
  Try the "about" link at the top.
  - travbrack 6y ago
    Ah, wasn't showing up on mobile
- dmytton 6y ago
  There is also the paper that introduced it at https://paris-traceroute.net/images/imc2006.pdf https://paris-traceroute.net/images/imc2006.pdf
cmroanirgo 6y ago
just stumbled across: https://www.dublin-traceroute.net https://www.dublin-traceroute.net > Dublin Traceroute uses the techniques invented by the authors of Paris-traceroute to enumerate the paths of ECMP flow-based load balancing, but introduces a new technique for NAT detection.
- jlgaddis 6y ago
  There are also Python bindings [0] for dublin-traceroute which allows things like analysis with pandas or generating charts. --- [0]: https://github.com/insomniacslk/python-dublin-traceroute https://github.com/insomniacslk/python-dublin-traceroute
052c7028e 6y ago
Akamai uses something similar to perform trace routes in-band of HTTP TCP sessions to clients: https://datatracker.ietf.org/meeting/94/materials/slides-94-hopsrg-4 https://datatracker.ietf.org/meeting/94/materials/slides-94-...

jart 6y ago

If anyone's curious how the tool is obtaining this information: $ dig +short TXT 8.8.8.8.origin.asn.cymru.com "15169 | 8.8.8.0/24 | US | arin | 1992-12-01" $ dig +short TXT AS15169.asn.cymru.com "15169 | US | arin | 2000-03-30 | GOOGLE, US" See also https://team-cymru.com/community-services/ip-asn-mapping/#dns https://team-cymru.com/community-services/ip-asn-mapping/#dn...

samoa42 6y ago

while the as_number->as_name lookup is usefull i would have opted for adding this feature to one (or more) of the existing utilities (traceroute, mtr, paris-traceroute) instead of crafting yet another command.

jlgaddis 6y ago
FWIW: $ traceroute -A ... $ mtr -z ...
- steven_pack 6y ago
  -A gets you the AS, my tool looks up the name. So you can see "Oh, it goes from Comcast, to Cogent to Google." cool. Rather than ASNs which you don't immediately recognize.

wooad123567890 6y ago

wooad กานางบ้านเอเจการนางพินผ้ามฝ้ายนางลังวางห้วงนางบ้านยื่องาน

jlgaddis 6y ago

Related: "Traceroute Lies! A Typical Misinterpretation Of Output" [0], previously discussed here on HN [1]. --- [0]: https://movingpackets.net/2017/10/06/misinterpreting-traceroute/ https://movingpackets.net/2017/10/06/misinterpreting-tracero... [1]: https://news.ycombinator.com/item?id=15474043 https://news.ycombinator.com/item?id=15474043