2/23    With Comcast, when I ping remote hosts at a rate > 3 pings/sec, I
        experience up to 98% packet loss. The stupid regular windows ping
        program that can only send 1 ping /sec.  They say they don't
        support Linux. Could somebody recommend a Windows2000 program that
        can send multiple pings per second?
        \_ why would you want to ping faster?  see iperf in udp mode if
           you want to measure loss rates of IP.
        \_ pinging faster is just going to test their ICMP rate limiters, which
           obviously throw icmp data over a certain rate.  Keep the icmp rate
           low and you won't see the loss.  What're you trying to prove, that
           the rate limiter exists?
           \_ I'm trying to use mtr to determine the location of an outage.
              If it is limited to one ping per second, it takes far too long
              to collect enough useful statistics. Any suggestions for
              an mtr-like program that doesn't use ICMP?
              \- you know there is a tcp/udp "ping" or "echo" service. that
                 is what those lines in the inetd.conf file are. i would
                 try to help more but you are posting anonymously and using
                 windows. --psb
                 \_ wow, the penalties for posting anonymously are brutal!
                    you don't get psb's help without which the world will end
                    but at least you know *why* the world is ending.  thanks
                    for letting us know, partha!  you're the best!
                    \- when multiple anonymous people are posting it is
                       difficult to know if you are talking to one or
                       several people. hence the confusion of "is this
                       about windows or not?" if someone asks me to spell check
                       my walls, i ignore them. if i am asking someone for
                       help and they tell me to spellcheck my email, i probably
                       would. i might even help if you sign with a hash of your
                       login. there are a couple of leeches on soda i probably
                       would not help. --psb
                       \_ its your choice of course.  no one is trying to force
                          you to help anyone but your holier than thou thing
                          is done.  what exactly is a soda motd leech?  there
                          are some people here who know stuff, a lot who don't
                          and a whole lot who both provide answers and ask
                          questions.  this isn't a warez board.  there are no
                          leeches here.  is there an upload/download quota
                          like when i had a 300 baud modem calling dialup
                          bulletin boards?
                          \- there are a number of people who you never
                             see around except when the want consultation.
                             i am not saying you have to do me a favor
                             but you ought to make an effort to be part of
                             the community. also helping people is simpler
                             when it is "stateful" as i said before. if some-
                             body has some anonymous question about sex, i
                             understand. an anon question of this flavor seems
                             pointless. and people do email me for more
                             detailed info. some kinds of help just wastes
                             the helpers time to do via motd instead of
                             interactively via email. --psb
                 \_ I'm using linux. mtr does not run on windows.  I'm
                    looking for a windows program because I want to give
                    the comcast technician's supervisor an example of why
                    this is not a linux-specific issue. Can you recommend
                    a tcp/udp "ping" or "echo" linux program? --brett
                    \- use Net::Ping;
                       as a general note, using tcp ping is not a bad idea.
                       for example a sun that has crashed will probably
                       reply to icmp pings on the same subnet. i use a
                       really fast ping program to map classB sized networks
                       but it is pretty much customized and optimzied for
                       lblnet. if you have an interesting project i can
                       send you the codes but you have to mail me. --psb
                       \_ What percentage of internet nodes respond to
                          utp pings? tcp pings?
                          \_ unshielded twisted pair?
                             \- i mean between machines that are known
                                quantities ... this wont work if people
                                turn off the inetd echo service. i am just
                                sayin gif the point of the ping is to see
                                if the machine is up, icmp ping can be
                                misleading in the example i gave ... L1+a
                                a sun and icmp ping it from the same subnet
                                --psb
                    \_ grep echo /etc/services .