Hi Israel, I have no such device to test, but I have cobbled togather a patch that might help ...
try http://oss.oetiker.ch/smokeping/pub/fping-2.4b2_to-sequence-fix.patch and let me know if it helps cheers tobi Today Israel Brewster wrote: > Sorry about resurrecting an old dead thread, but I was wondering if > there had been any changes in the last few months since the last > posting, perhaps updates to the fping probe or the like? This > continues to be an issue for us, and I am not at all happy with the > work around I have in place (sending 4 pings with a 15 second interval). > > To rehash: the problem we are running into is that when using fping > against certain devices, only one or two packets are returned, > regardless of device function and number of packets sent. Setting a > higher packet interval (such at the 15 seconds mentioned previously) > allows a limited number of additional packets to return, but is not a > workable solution. From previous discussions, it would appear that the > issue is with fping not updating the sequence number, but patching > that issue is beyond my skill level. Thanks! > > ----------------------------------------------- > Israel Brewster > Computer Support Technician > Frontier Flying Service Inc. > 5245 Airport Industrial Rd > Fairbanks, AK 99709 > (907) 450-7250 x293 > ----------------------------------------------- > > > On May 19, 2008, at 8:10 AM, Israel Brewster wrote: > > > > > > > > > On May 17, 2008, at 11:03 AM, Niko Tyni wrote: > > > >> On Sat, May 17, 2008 at 02:20:04PM -0400, Mike Lerley wrote: > >> > >>> Fair enough; however, I have turned on and off all options I can > >>> find on the > >>> router related to that sort of thing and nothing changes. More > >>> importantly, > >>> I can do this: > >>> > >>> [EMAIL PROTECTED]:~# ping -f tobeys.gotdns.com > >>> PING tobeys.gotdns.com (24.39.29.68) 56(84) bytes of data. > >>> ....................................... > >>> --- tobeys.gotdns.com ping statistics --- > >>> 3609 packets transmitted, 3570 received, 1% packet loss, time > >>> 47185ms > >>> rtt min/avg/max/mdev = 23.229/31.162/72.274/7.039 ms, pipe 6, ipg/ > >>> ewma > >>> 13.078/27.893 ms > >>> > >>> Clearly, there is no packet rate limiting in effect here... > >> > >> It's most probably looking at the ICMP sequence number. While the > >> 'regular ping' increments the sequence number for each ping, fping > >> apparently uses is as an index to the hosts it's pinging. So the > >> first > >> host gets sequence number 0 for all pings, the second one gets 1 etc. > >> > >> The device probably considers the unchanging sequence number an > >> attack > >> and stops responding. > >> > >> It should be quite easy to patch fping to store the information in > >> the > >> payload instead and increase the sequence number like the rest of the > >> world does. No, no patch at least yet :) > >> > >> Cheers, > > > > Now that is the best answer I have heard yet- it actually makes sense > > (to a degree, at least), and fits the observed facts. Any chance of > > such a patch being written by someone? I'd be happy to test it, if > > so... Actually, I'd almost be happy to write it, except I don't think > > my understanding of networks, ping payloads, and how this all works is > > quite up to the task :). > > > > ----------------------------------------------- > > Israel Brewster > > Computer Support Technician > > Frontier Flying Service Inc. > > 5245 Airport Industrial Rd > > Fairbanks, AK 99709 > > (907) 450-7250 x293 > > ----------------------------------------------- > >> > >> -- > >> Niko > >> > >> _______________________________________________ > >> smokeping-users mailing list > >> [email protected] > >> https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users > > > > _______________________________________________ > > smokeping-users mailing list > > [email protected] > > https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users > > _______________________________________________ > smokeping-users mailing list > [email protected] > https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users > > -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland http://it.oetiker.ch [EMAIL PROTECTED] ++41 62 775 9902 / sb: -9900 _______________________________________________ smokeping-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users
