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astraceroute - AS traceroute

astraceroute is based on traceroute from LBL ( ftp://ftp.ee.lbl.gov/traceroute.tar.gz) with the added feature of origin AS resolution, much like the prtraceroute that comes with the IRRToolSet.

prtraceroute uses the IRR for AS resolution, but the IRR data is often out-of-date or missing entirely. astraceroute resolves the origin AS by DNS resolution of the IP address in the time-execeeded reply via the asn.routeviews.org domain ( www.routeviews.org).

A traceroute to nic.near.net, for example:

% astraceroute -a nic.near.net
astraceroute to nic.near.net (192.52.71.4), 30 hops max, 52 byte packets
 1  [AS3727] f1-0-2.shaggy.shrubbery.net (198.58.5.10)  13.536 ms  79.171 ms  0.966 ms
 2  [AS3727] d1-0-3-1-3.a12.sttlwa01.us.ra.verio.net (198.58.5.114)  9.073 ms  8.771 ms  8.881 ms
 3  [AS2914] p16-0-1-2.r20.sttlwa01.us.bb.gin.ntt.net (129.250.2.68)  8.876 ms  8.789 ms  9.591 ms
 4  [AS2914] xe-3-1.r00.sttlwa01.us.bb.gin.ntt.net (129.250.2.205)  8.157 ms  10.169 ms  8.166 ms
 5  [AS2914] ge-2.level3.sttlwa01.us.bb.gin.ntt.net (129.250.8.178)  9.607 ms  10.279 ms  9.625 ms
 6  [AS3356] ge-11-2.hsa1.Seattle1.Level3.net (4.68.105.166)  10.377 ms
    [AS3356] ge-11-1.hsa1.Seattle1.Level3.net (4.68.105.102)  8.399 ms
    [AS3356] ge-10-0.hsa1.Seattle1.Level3.net (4.68.105.6)  9.199 ms
 7  [AS3356] qfe0.server1.Seattle1.Level3.net (209.244.126.148)  9.975 ms *  8.580 ms
	

The origin AS for each hop appears in the brackets preceeding the name of the IP.

The current version is 1.4a12.1, based on the LBL traceroute 1.4.a12. Available at ftp://ftp.shrubbery.net/pub/astraceroute/.

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