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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>So does everyone have this problem with
the #trace option??? Bbtest going yellow?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks, michael<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Josh Luthman
[mailto:josh@imaginenetworksllc.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, January 14, 2008
1:50 PM<br>
<b><span style='font-weight:bold'>To:</span></b> hobbit@hswn.dk<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [hobbit] Re: <st1:State
w:st="on"><st1:place w:st="on">Conn</st1:place></st1:State> test problems</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Oh I see about the 30 hop
default (that is every distro I've ever seen and Windows).<br>
<br>
I was thinking about something else, never mind then.<o:p></o:p></span></font></p>
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<p class=MsoNormal><span class=gmailquote><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>On 1/14/08, <b><span style='font-weight:bold'>Hobbit
User in Richmond</span></b> <<a href="mailto:hobbit@epperson.homelinux.net">hobbit@epperson.homelinux.net</a>>
wrote:</span></font></span><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>The question was
"But, I don't understand, how the traceroute works when<br>
the host is up, but when the host is down it times out???" and remarked on<br>
the 30 lines of output in a time out situation.<br>
<br>
Although I cited Fedora 8 as the page I was quoting, the traceroute<br>
documentation for most any modern distro contains the explanation about<br>
the 30-hop default and the behavior when the tracerouted host is not<br>
reached. Sorry if I wasn't clear. <br>
<br>
On Mon, January 14, 2008 13:19, Josh Luthman wrote:<br>
> Then I don't see how the FC8 traceroute documentation would be relevant,<br>
> as Michael stated that he can do one from the shell but errors out in <br>
> Hobbit.<br>
><br>
> Am I missing something here?<br>
><br>
> On 1/14/08, Hobbit User in <st1:City w:st="on"><st1:place w:st="on">Richmond</st1:place></st1:City>
<<a href="mailto:hobbit@epperson.homelinux.net">hobbit@epperson.homelinux.net</a>><br>
> wrote:<br>
>><br>
>> Presumably.<br>
>><br>
>> On Mon, January 14, 2008 12:40, Josh Luthman wrote:<br>
>>> Wouldn't the traceroute used by Hobbit be the same command as the<br>
>> shell?<br>
>>> <br>
>>> On 1/14/08, Hobbit User in <st1:City w:st="on"><st1:place w:st="on">Richmond</st1:place></st1:City>
<<a href="mailto:hobbit@epperson.homelinux.net">hobbit@epperson.homelinux.net</a>><br>
>>> wrote:<br>
>>>><br>
>>>> Actually, ICMP echo-request and echo-reply packets are almost <br>
>> certainly<br>
>>>> not an issue here, nor is
packet-filtering/firewalling. In current<br>
>>>> implementations, traceroute by default uses UDP
packets to<br>
>>>> abitrary<br>
>> and<br>
>>>> unlikely-to-respond ports, varying the TTL and using the ICMP
type<br>
>> 11<br>
>>>> (Time Exceeded) from hops along the way to map the routing
path.<br>
>>>><br>
>>>> The manpage in Fedora 8 says "We start our probes with a
ttl of one<br>
>>>><br>
>> and<br>
>>>> increase by one until we...got to the "host", or hit
a max (which <br>
>>>> defaults to 30 hops)".<br>
>>>><br>
>>>> So, the behavior you're seeing is as documented. If
a firewall<br>
>>>> were<br>
>> an<br>
>>>> issue in sending/receiving the packets used by traceroute,
you'd <br>
>>>> see the 30-hop behavior whether the host was up or down.<br>
>>>><br>
>>>> On Mon, January 14, 2008 11:17, Michael A. Price wrote:<br>
>>>>> Josh,<br>
>>>>> <br>
>>>>><br>
>>>>><br>
>>>>> Thanks for helping... The source/destination is on a
closed<br>
>>>>> network, sorry...and I don't own the router...<br>
>>>>> <br>
>>>>><br>
>>>>><br>
>>>>> But, I don't understand, how the traceroute works when the
host<br>
>>>>> is up, but when the host is down it times out???<br>
>>>>> <br>
>>>>><br>
>>>>><br>
>>>>> If it works when the host is up, then you would think the
ACL on<br>
>>%<br>
<br>
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<br>
<o:p></o:p></span></font></p>
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<br clear=all>
<br>
-- <br>
Josh Luthman<br>
Office: 937-552-2340<br>
Direct: 937-552-2343<br>
<st1:Street w:st="on"><st1:address w:st="on">1100 Wayne St</st1:address></st1:Street><br>
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<br>
Those who don't understand UNIX are condemned to reinvent it, poorly. <br>
--- Henry Spencer <o:p></o:p></span></font></p>
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