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Date:      Fri, 21 Nov 2003 11:43:37 -0000
From:      "Fernando Correia" <fmc@fe.up.pt>
To:        <ports@FreeBSD.org>
Subject:   TOTD small malfuntion !!
Message-ID:  <000001c3b024$b3d3cfa0$3d35a8c0@public.fe.up.pt>

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Hello,

While experimenting IPv6 and NAT-PT implementations using the "totd" as
a DNS proxy, I found a small bug !?. Aparently it can't deal with more
than 2 levels of alias in a DNS response and it hang's the aplication
that make the dns query (ex. Browser, ping, traceroute) returning a no
address message.
My question is, is it suposed to do that or is it a detail to be
corrected in totd ?

Thank you for your attention,

Fernando Correia
CICA-FEUP
Portugal


natpt# host www.microsoft.com
www.microsoft.com is a nickname for www.microsoft.akadns.net 
www.microsoft.akadns.net is a nickname for
www.microsoft.com.edgesuite.net 
www.microsoft.com.edgesuite.net is a nickname for a562.cd.akamai.net 
a562.cd.akamai.net has address 63.208.194.103 
a562.cd.akamai.net has address 63.208.194.30 
a562.cd.akamai.net has address 63.208.194.32 
a562.cd.akamai.net has address 63.208.194.33 
a562.cd.akamai.net has address 63.208.194.54 
a562.cd.akamai.net has address 63.208.194.65 
a562.cd.akamai.net has address 63.208.194.89 
a562.cd.akamai.net has address 63.208.194.94 
a562.cd.akamai.net has address 63.208.194.96 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c220 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c221 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c236 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c241 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c259 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c25e 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c260 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c267 
a562.cd.akamai.net has address 2001:690:2200:9a0f::3fd0:c21e 
natpt# ping6 www.microsoft.com 
^C 
natpt# traceroute6 www.microsoft.com 
^C 
natpt# traceroute6 www.microsoft.com.edgesuite.net 
traceroute6 to a562.cd.akamai.net (2001:690:2200:9a0f::3fd0:c23f) from
2001:690:2200:9a00::1, 30 hops max, 12 byte packets  1
2001:690:2200:9a00::1  0.255 ms  0.287 ms  0.206 ms  
2  gw-e26-51  0.818 ms  0.797 ms  0.659 ms  
3  nokia  3.698 ms  0.97 ms  1.896 ms  
4  2001:690:2200:9a0f::c189:37c1  7.616 ms  2.006 ms  2.472 ms  
5  Router15.ATM1-0-3.Porto.fccn.pt  3.444 ms  5.759 ms  5.198 ms  
6  ROUTER11.GE.Porto.fccn.pt  9.431 ms  7.741 ms  8.116 ms  
7  ROUTER8.GE.Lambda.Lisboa.fccn.pt  9.984 ms  12.139 ms  12.165 ms  
8  ROUTER1.GE0-2-0.5.Lisboa.fccn.pt  12.517 ms  11.321 ms  9.506 ms  
9  rccn.es1.es.geant.net  22.307 ms  20.046 ms  19.294 ms 
10  es.it1.it.geant.net  42.292 ms  44.112 ms  48.737 ms 
11  so-0-1-0.ar2.LIN1.gblx.net  52.529 ms  45.138 ms  48.873 ms 
12  pos6-0-2488M.cr1.LIN1.gblx.net  44.207 ms  48.044 ms  43.995 ms 
13  pos0-0-2488M.cr1.LON3.gblx.net  70.024 ms  70.034 ms  73.83 ms 
14  so6-0-0-2488M.ar2.LON3.gblx.net  74.315 ms  73.231 ms  69.67 ms 
15  Level-3public-peering.ge-5-0-0.ar2.LON3.gblx.net  67.553 ms  79.326
ms 74.5 ms 
16  ae-0-54.mp2.London1.Level3.net  74.911 ms  69.735 ms  67.265 ms 
17  so-1-0-0.bbr2.NewYork1.Level3.net  134.753 ms  144.419 ms  135.479
ms 
18  unknown.Level3.net  138.965 ms  146.14 ms  144.14 ms 
19  ge-11-0.hsa1.Boston1.Level3.net  140.548 ms  149.1 ms  155.919 ms 
20  unknown.Level3.net  148.376 ms  151.731 ms  148.32 ms 
natpt#



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