[ale] Can ping but cannot traceroute

[hbbs at attbi.com]

Mike - 

I'm no expert, but if I recall corectly, traceroute uses a trick of the TTL
(time-to-live) parameter.  Not all routers are configured to respond how
traceroute expects and therefore not all traceroute attempts work like they're
supposed to.

- Jeff
> I am trying to access the rational site, www.rational.com, and am
> getting the "The operation timed out when attempting to connect to
> www.rational.com" error. I can ping the site, but when I do a
> traceroute, it dies at hop 14 per below. How is it that I am able to
> ping the site but not compete a traceroute? Isn't ping UDP, and isn't
> UDP routed? Any ideas on what the problem is or how I can troubleshoot
> this?
> 
> 1 adsl-068-157-168-001.sip.asm.bellsouth.net (68.157.168.1) 12.768 ms
> 12.884 ms 13.004 ms
> 
> 2 209.149.96.97 (209.149.96.97) 13.265 ms 13.108 ms 13.282 ms
> 
> 3 209.149.96.142 (209.149.96.142) 13.272 ms 13.115 ms 13.029 ms
> 
> 4 209.149.96.230 (209.149.96.230) 13.277 ms 19.569 ms 13.279 ms
> 
> 5 65.83.237.2 (65.83.237.2) 23.382 ms 13.164 ms 13.029 ms
> 
> 6 pxr00asm-2-0-0.bellsouth.net (65.83.236.2) 13.282 ms 13.041 ms 13.276
> ms
> 
> 7 0.so-0-0-0.GW13.ATL5.ALTER.NET (157.130.73.97) 15.003 ms 13.090 ms
> 15.000 ms
> 
> 8 0.so-0-1-0.XL1.ATL5.ALTER.NET (152.63.84.98) 14.842 ms 14.540 ms
> 14.984 ms
> 
> 9 0.so-1-2-0.TL1.ATL5.ALTER.NET (152.63.146.6) 14.756 ms 14.576 ms
> 15.005 ms
> 
> 10 0.so-3-1-0.TL1.NYC9.ALTER.NET (152.63.10.130) 31.505 ms 31.337 ms
> 31.508 ms
> 
> 11 0.so-5-0-0.XL1.NYC9.ALTER.NET (152.63.0.174) 31.512 ms 31.359 ms
> 31.478 ms
> 
> 12 0.so-7-0-0.XR1.NYC9.ALTER.NET (152.63.23.138) 31.269 ms 31.330 ms
> 31.730 ms
> 
> 13 181.ATM7-0.GW7.NYC9.ALTER.NET (152.63.24.81) 32.544 ms 34.764 ms
> 34.709 ms
> 
> 14 ibm-gw2.customer.alter.net (157.130.49.166) 34.721 ms 34.538 ms
> 34.964 ms
> 
> 15 * * *
> 
> 16 * * *
> 
> 17 * * *
> 
> -- 
> Thank you,
> Mike
> 
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
_______________________________________________
Ale mailing list
Ale at ale.org
http://www.ale.org/mailman/listinfo/ale