traceroute AS path patch

[John Hay]

Hi Rui,

On Sun, Feb 17, 2008 at 09:30:44PM +0000, Rui Paulo wrote:
> Hi,
> The attached patch ports a traceroute functionality from FreeBSD  
> called AS path.
> The concept is simple. On each hop we query a whois server to find the  
> corresponding hop AS number.
> 
> I think it doesn't hurt if we have this functionality.
> 
> An example output:
> traceroute to freebsd.org (69.147.83.40), 64 hops max, 72 byte packets
> ...
>  7  [AS6453] if-2-1.core1.PV9-Lisbon.teleglobe.net (195.219.187.21)   
> 35.105 ms  34.008 ms  35.334 ms
>  8  [AS6453] 195.219.144.5 (195.219.144.5)  63.880 ms  60.448 ms   
> 60.809 ms
>  9  [AS6453] 195.219.144.10 (195.219.144.10)  138.593 ms  193.709 ms   
> 173.415 ms
> 10  [AS7199] if-2-0.core1.NJY-Newark.teleglobe.net (216.6.63.10)   
> 133.912 ms  134.393 ms  144.071 ms
> 11  [AS9557] if-3-1.mcore3.NJY-Newark.teleglobe.net (216.6.57.1)   
> 135.600 ms  144.979 ms  168.247 ms
> 12  [AS9557] if-12-0-0-741.core4.AEQ-Ashburn.teleglobe.net  
> (216.6.57.70)  180.346 ms  138.718 ms  138.927 ms
> 13  [AS6453] 64.86.85.38 (64.86.85.38)  142.745 ms  143.163 ms   
> 143.358 ms
> 14  [AS26085] so-0-0-0.pat2.pao.yahoo.com (216.115.101.130)  252.417  
> ms  213.377 ms  212.859 ms
> 15  [AS26085] ge-0-1-0-p301.pat1.sjc.yahoo.com (216.115.106.147)   
> 214.709 ms  213.198 ms  235.253 ms
> 16  [AS26085] g-1-0-0-p160.msr1.sp1.yahoo.com (216.115.107.61)   
> 219.091 ms
>     [AS26085] g-0-0-0-p170.msr2.sp1.yahoo.com (216.115.107.81)   
> 217.650 ms
>     [AS26085] g-1-0-0-p160.msr1.sp1.yahoo.com (216.115.107.61)   
> 286.376 ms
> 17  [AS36752] ge-1-45.bas-b2.sp1.yahoo.com (209.131.32.49)  213.747 ms
>     [AS36752] ge-1-41.bas-b2.sp1.yahoo.com (209.131.32.33)  274.140 ms
>     [AS36752] ge-1-45.bas-b2.sp1.yahoo.com (209.131.32.49)  213.341 ms
> 18  [AS36752] freebsd.org (69.147.83.40)  214.386 ms  223.515 ms   
> 212.548 ms
> 
> 
> What do you think?

Would it be difficult to add it to traceroute6 too? It would be great
if we can keep features in sync.

John
-- 
John Hay -- John.Hay at meraka.csir.co.za / jhay at FreeBSD.org