Wouldn't the traceroute used by Hobbit be the same command as the shell?<br><br><div><span class="gmail_quote">On 1/14/08, <b class="gmail_sendername">Hobbit User in Richmond</b> <<a href="mailto:hobbit@epperson.homelinux.net">
hobbit@epperson.homelinux.net</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Actually, ICMP echo-request and echo-reply packets are almost certainly
<br>not an issue here, nor is packet-filtering/firewalling. In current<br>implementations, traceroute by default uses UDP packets to abitrary and<br>unlikely-to-respond ports, varying the TTL and using the ICMP type 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 and<br>increase by one until we...got to the "host", or hit a max (which defaults
<br>to 30 hops)".<br><br>So, the behavior you're seeing is as documented. If a firewall were an<br>issue in sending/receiving the packets used by traceroute, you'd see the<br>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 network,<br>> sorry...and I don't own the router...
<br>><br>><br>><br>> But, I don't understand, how the traceroute works when the host is up,<br>> 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 the
<br>> router just before the host would allow my ICMP packets through.<br>><br>><br>><br>> What is your thoughts???<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> From: Josh Luthman [mailto:
<a href="mailto:josh@imaginenetworksllc.com">josh@imaginenetworksllc.com</a>]<br>> Sent: Thursday, January 10, 2008 11:01 AM<br>> To: <a href="mailto:hobbit@hswn.dk">hobbit@hswn.dk</a><br>> Subject: Re: [hobbit] Re: Conn test problems
<br>><br>><br>><br>> That third hop is denying ICMP echoes to you. Is it a router of your<br>> own or is it outside your network? If you'd be willing to share that<br>> destination with us at least I would be willing to traceroute it from my
<br>> location to help see if it is an issue at your end or not.<br>><br>> On 1/10/08, Michael A. Price <<a href="mailto:mprice@sgt-inc.com">mprice@sgt-inc.com</a>> wrote:<br>><br>> Yes....<br>><br>
><br>><br>> Its weird, from the shell#. I can trace route to the host if its up in<br>> 3 HOPS. But if the host is offline, it does 2 HOPS and then 28 more<br>> blank lines of stars. Not sure why it doesn't just time out after 3
<br>> HOPS, it takes a couple minutes to time out.<br>><br>><br>><br>> That's what my problem is, so I removed the trace option to my hosts.<br>> Any help would be great...<br>><br>><br>><br>
> Thanks, michael<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> From: Josh Luthman [mailto:<a href="mailto:josh@imaginenetworksllc.com">josh@imaginenetworksllc.com</a>]
<br>> Sent: Wednesday, January 09, 2008 3:32 PM<br>> To: <a href="mailto:hobbit@hswn.dk">hobbit@hswn.dk</a><br>> Subject: Re: [hobbit] Re: Conn test problems<br>><br>><br>><br>> Michael,<br>><br>> Were you the one that couldn't traceroute to the host via the shell?
<br>><br>> Josh<br>><br>> On 1/9/08, Michael A. Price < <a href="mailto:mprice@sgt-inc.com">mprice@sgt-inc.com</a><br>> <mailto:<a href="mailto:mprice@sgt-inc.com">mprice@sgt-inc.com</a>> > wrote:
<br>><br>> My 'ping test completed' goes through the roof if my #trace tag is in<br>> the monitoring field and the host is down...<br>><br>><br>><br>> It keeps trying to trace route and it times out..
<br>><br>><br>><br>> Never found a fix..<br>><br>><br>><br>> ________________________________<br>><br>> From: Josh Luthman [mailto: <a href="mailto:josh@imaginenetworksllc.com">josh@imaginenetworksllc.com
</a>]<br>> Sent: Wednesday, January 09, 2008 10:55 AM<br>> To: <a href="mailto:hobbit@hswn.dk">hobbit@hswn.dk</a><br>> Subject: [hobbit] Re: Conn test problems<br>><br>><br>><br>> Has anyone else encountered issues like this? Has anyone else
<br>> encountered any similar issues with all the conn tests going haywire?<br>><br>> I figured I'd also post this information while "bumping" the email:<br>><br>> bbgen for Hobbit version 4.2.0
<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> Statistics:<br>><br>><br>><br>><br>><br>><br>> Hosts : 164
<br>><br>><br>><br>><br>><br>><br>><br>> Status messages : 531<br>><br>><br>><br>><br>><br>><br>><br>> Purple messages : 0<br>><br>><br>><br>><br>
><br>><br>> Pages : 1<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>
><br>> TIME SPENT<br>><br>><br>><br>><br>><br>><br>> Event Starttime<br>> Duration<br>><br>><br>><br>><br>><br>><br>><br>><br>
> Startup 1199894029.525853<br>> -<br>><br>><br>><br>><br>><br>><br>><br>> Load links done 1199894029.526327<br>> 0.000474<br>>
<br>><br>><br>><br>><br>><br>><br>> Load bbhosts done 1199894029.531645<br>> 0.005318<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>>
<br>> ACK removal done 1199894029.531742<br>> 0.000097<br>><br>><br>><br>><br>><br>><br>><br>> Load STATE done 1199894029.563429<br>> 0.031687
<br>><br>><br>><br>><br>><br>><br>> Color calculation done<br>> 1199894029.563629 0.000200<br>><br>><br>><br>><br>><br>><br>><br>> Hobbit pagegen start
1199894029.563659<br>> 0.000030<br>><br>><br>><br>><br>><br>><br>> Hobbit pagegen done<br>> 1199894029.573544 0.009885<br>><br>><br>><br>><br>><br>><br>> BB2 generation done
<br>><br>> 1199894029.576605 0.003061<br>><br>><br>><br>><br>><br>><br>> BBNK generation done 1199894029.577261<br>> 0.000656<br>><br>><br>><br>
><br>><br>><br>> Summary transmission done 1199894029.577265<br>> 0.000004<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> WML generation done<br>>
1199894029.578793<br>> 0.001528<br>><br>><br>><br>><br>><br>><br>> Run completed 1199894029.578798<br>> 0.000005<br>><br>><br>><br>><br>><br>>
<br>><br>><br>><br>><br>> TIME TOTAL<br>> 0.052945<br>><br>><br>><br>> bbtest-net version<br>> 4.2.0<br>><br>><br>><br>><br>><br>><br>> SSL library : OpenSSL 0.9.8b 04 May 2006
<br>><br>><br>><br>><br>><br>><br>> LDAP library: OpenLDAP 20327<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> Statistics:<br>
><br>><br>><br>><br>><br>><br>><br>> Hosts total : 161<br>><br>><br>><br>><br>><br>><br>><br>> Hosts with no tests : 1<br>><br>><br>><br>>
<br>><br>><br>> Total test count : 181<br>><br>><br>><br>><br>><br>><br>><br>> Status messages : 182<br>><br>><br>><br>><br>><br>><br>><br>><br>
> Alert status msgs : 0<br>><br>><br>><br>><br>><br>><br>> Transmissions : 3<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>>
<br>><br>><br>><br>><br>><br>> DNS statistics:<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> # hostnames resolved : 16<br>><br>><br>><br>><br>
><br>><br>><br>> # succesful : 16<br>><br>><br>><br>><br>><br>><br>> # failed : 0<br>><br>><br>><br>><br>><br>><br>><br>> # calls to dnsresolve : 27
<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> TCP test statistics:<br>><br>><br>><br>><br>><br>><br>><br>> # TCP tests total : 13
<br>><br>><br>><br>><br>><br>><br>> # HTTP tests : 5<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> # Simple TCP tests : 8<br>><br>
><br>><br>><br>><br>><br>><br>> # Connection attempts : 13<br>><br>><br>><br>><br>><br>><br>> # bytes written : 780<br>><br>><br>><br>><br>><br>>
<br>><br>> # bytes read : 22792<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>
><br>><br>> TIME SPENT<br>><br>><br>><br>><br>><br>><br>> Event Starttime<br>> Duration<br>><br>><br>><br>><br>><br>><br>><br>
><br>><br>><br>> bbtest-net startup 1199893834.785076<br>> -<br>><br>><br>><br>><br>><br>><br>><br>> Service definitions loaded<br>> 1199893834.787463
0.002387<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> Tests loaded 1199893834.793085<br>> 0.005622<br>><br>><br>><br>><br>><br>><br>
><br>> DNS lookups completed 1199893834.883042<br>> 0.089957<br>><br>><br>><br>><br>><br>><br>> Test engine setup completed<br>> 1199893834.886789 0.003747<br>>
<br>><br>><br>><br>><br>><br>><br>> TCP tests completed 1199893835.028904<br>> 0.142115<br>><br>><br>><br>><br>><br>><br>> PING test completed (160 hosts)<br>
> 1199893870.087696 35.058792<br>><br>><br>><br>><br>><br>><br>> PING test results sent<br>><br>> 1199893870.090125 0.002429<br>><br>><br>><br>><br>><br>><br>
> Test result collection completed 1199893870.090173<br>> 0.000048<br>><br>><br>><br>><br>><br>><br>> LDAP test engine setup completed 1199893870.090175<br>> 0.000002
<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> LDAP tests executed<br>> 1199893870.090177<br>> 0.000002<br>><br>><br>><br>><br>><br>><br>> LDAP tests result collection completed
1199893870.090179<br>> 0.000002<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> NSLOOKUP tests executed 1199893870.244778<br>> 0.154599<br>><br>><br>>
<br>><br>><br>><br>><br>> Test results transmitted<br>> 1199893870.246478 0.001700<br>><br>><br>><br>><br>><br>><br>><br>><br>><br>><br>> bbtest-net completed
1199893870.248556<br>> 0.002078<br>><br>><br>><br>><br>><br>><br>><br>> TIME TOTAL<br>> 35.463480<br>><br>><br>><br>> On 1/7/08, Josh Luthman <<a href="mailto:josh@imaginenetworksllc.com">
josh@imaginenetworksllc.com</a>> wrote:<br>><br>> I've been getting a lot of these recently. A lot of the time I'll get a<br>> good 3/4 of the hosts I'm monitoring like this, other days it is just
<br>> one or two. I can't seem to find any pattern to it. I'm very confident<br>> it isn't network related as it happens to the first entry, Hobbit<br>> server. I just can't imagine why it would have issues getting to
<br>> <a href="http://127.0.0.1">127.0.0.1</a>!<br>><br>> I was also under the impression that the ping test is done every 60s or<br>> 120s so these tests just can't be true positive results.<br>><br>> Poking around I also found that the test to my hobbit server (this is
<br>> <a href="http://127.0.0.1">127.0.0.1</a> mind you) went up in early December.<br>><br>> Looking for any input at this point!<br>><br>> --<br>> Josh Luthman<br>> Office: 937-552-2340<br>> Direct: 937-552-2343
<br>> 1100 Wayne St<br>> Suite 1337<br>> Troy, OH 45373<br>><br>> Those who don't understand UNIX are condemned to reinvent it, poorly.<br>> --- Henry Spencer<br>><br>><br>><br>><br>><br>
> --<br>> Josh Luthman<br>> Office: 937-552-2340<br>> Direct: 937-552-2343<br>> 1100 Wayne St<br>> Suite 1337<br>> Troy, OH 45373<br>><br>> Those who don't understand UNIX are condemned to reinvent it, poorly.
<br>> --- Henry Spencer<br>><br>><br>><br>><br>> --<br>> Josh Luthman<br>> Office: 937-552-2340<br>> Direct: 937-552-2343<br>> 1100 Wayne St<br>> Suite 1337<br>> Troy, OH 45373<br>><br>
> Those who don't understand UNIX are condemned to reinvent it, poorly.<br>> --- Henry Spencer<br>><br>><br>><br>><br>> --<br>> Josh Luthman<br>> Office: 937-552-2340<br>> Direct: 937-552-2343
<br>> 1100 Wayne St<br>> Suite 1337<br>> Troy, OH 45373<br>><br>> Those who don't understand UNIX are condemned to reinvent it, poorly.<br>> --- Henry Spencer<br>><br>><br><br><br>To unsubscribe from the hobbit list, send an e-mail to
<br><a href="mailto:hobbit-unsubscribe@hswn.dk">hobbit-unsubscribe@hswn.dk</a><br><br><br></blockquote></div><br><br clear="all"><br>-- <br>Josh Luthman<br>Office: 937-552-2340<br>Direct: 937-552-2343<br>1100 Wayne St<br>
Suite 1337<br>Troy, OH 45373<br><br>Those who don't understand UNIX are condemned to reinvent it, poorly.<br>--- Henry Spencer