nanog mailing list archives

Re: bgp traceroute tool?


From: Rene Wilhelm <wilhelm () ripe net>
Date: Sun, 01 Dec 2013 01:19:14 +0100


On 11/30/13 1:18 AM, Lee Clark wrote:
The traceroute variant  included with CentOS 6.4 & Mint 13 has an -A
> flag which does ASN lookups. ntraceroute on FreeBSD supports it as
> well. I believe the Linux port is traceroute-nanog.
>
> Lee

traceroute -A  consults the internet routing registry which is know
to beincomplete and at times incorrect when it comes to IP to
BGP origin AS mapping. For this reason we developed riswhois.ripe.net,
a whois style interface to the BGP data collected by RIPE NCC's Routing
information service (http://www.ripe.net/data-tools/stats/ris)

Reporting in the same format as the IRR, riswhois is plugin
compatible with whois.radb.net. If your linux traceroutederives
from http://traceroute.sourceforge.net/ all it takes to switch to
using true BGP info in traceroute is setting the environment variable
RA_SERVER to "riswhois.ripe.net"


-- Rene

P.S. the LFT tool metioned earlier in this thread can also use RISwhois
to lookup ASNs; just pass it the -r option on the command line.




[user@box ~]# traceroute -V Modern traceroute for  Linux, version
2.0.14, Nov 11 2010 Copyright (c) 2008  Dmitry  Butskoy,   License:
GPL v2 or any later

[user@box ~]# traceroute -A www.google.ca traceroute  to www.google.ca
(74.125.226.127), 30 hops max, 60 byte packets  <snip> 6  72.14.197.33
(72.14.197.33) [AS15169]  73.927 ms  69.254 ms69.305 ms 7
209.85.254.130 (209.85.254.130) [AS15169]  69.436 ms  209.85.254.122
(209.85.254.122) [AS15169]  79.554 ms  64.269 ms 872.14.237.130
(72.14.237.130) [AS15169]  64.979 ms  65.975 ms  209.85.254.238
(209.85.254.238) [AS15169]  66.700 ms 9216.239.46.161
(216.239.46.161) [AS15169]  71.293 ms  72.251 ms73.521 ms 10
209.85.250.207 (209.85.250.207) [AS15169]  74.454  ms  74.920 ms
75.889 ms 11  yyz08s13-in-f31.1e100.net  (74.125.226.127) [AS15169]
76.628 ms  77.105 ms  70.928 ms
>
>
> -----Original Message----- From: John Conner
> [mailto:bs7799 () gmail com] Sent: Friday, November 29, 2013 5:04 PM To:
> nanog () nanog org Subject: bgp traceroute tool?
>
> Hi there, is there any tools available under linux which can do bgp
> traceroute? (print bgp AS numbers for each traceroute hop ) , i
> googled and found nothing.
>
> thanks
>
> John
>
>




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