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Date:      Thu, 01 Apr 1999 23:00:33 -0500
From:      Malartre <malartre@videotron.ca>
To:        "Andy V. Oleynik" <andyo@prime.net.ua>
Cc:        cjclark@home.com, freebsd-questions@FreeBSD.ORG
Subject:   Re: I cannot ping myself (DHCP+Cable Modem)
Message-ID:  <370440E1.A185397@videotron.ca>
References:  <199903310202.VAA01525@cc942873-a.ewndsr1.nj.home.com> <370334D4.C2D5BF85@prime.net.ua>

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"Andy V. Oleynik" wrote:
> 
> "Crist J. Clark" wrote:
> 
> > Malartre wrote,
> >
> > > $ ifconfig -a
> > > ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > >         inet 216.113.2.4 netmask 0xffffff00 broadcast 216.113.2.255
> > >         ether 00:e0:29:13:56:8c
> >
> > > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
> > >         inet 127.0.0.1 netmask 0xff000000
> >
> > Looks good.
> >
> > > $ ping 216.113.2.4
> > > PING 216.113.2.4 (216.113.2.4): 56 data bytes
> > > ^C
> > > --- 216.113.2.4 ping statistics ---
> > > 9 packets transmitted, 0 packets received, 100% packet loss
> >
> > My first thought is, "F*ckin' weird!" But that is not too
> > helpful. What are the results of trying,
> >
> > $ traceroute 216.113.2.4
> >
> 
> In this case traceroute is bad assistant since it use ICMP
> ECHO/REDIRECT too.
> IMHO  output of netstat -rn  would give more usefull result
> 
> >
> > And if that is not elucidating,
> >
> > # ping 216.113.2.4 > /dev/null &
> > # tcpdump
> >
> > Does the 127.0.0.1 loopback work?
> > --
> > Crist J. Clark                           cjclark@home.com
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-questions" in the body of the message
> 
> --
> WBW  Andy V. Oleynik  (When U work in virtual office
>                        U have good chance to obtain virtual money ö%-)
1) Sorry, but that's the only mail I got from freebsd-questions on this
thread: my filter deleted all the others before... my stupid error.

2) $ netstat -rn
Routing tables
Internet:
Destination        Gateway            Flags     Refs     Use     Netif
Expire
default            216.113.2.1        UGSc        6        4      ed0
127.0.0.1          127.0.0.1          UH          0        0      lo0
216.113.2          link#1             UC          0        0      ed0
216.113.2.1        8:0:3e:15:44:37    UHLW        7        0      ed0  
1193
216.113.2.227      127.0.0.1          UGHS        0        0      ed0

3) $ ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=255 time=0.120 ms
64 bytes from 127.0.0.1: icmp_seq=1 ttl=255 time=0.083 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=255 time=0.081 ms
^C
--- 127.0.0.1 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.081/0.095/0.120/0.018 ms

4) $ traceroute 216.113.2.4
traceroute to 216.113.2.4 (216.113.2.4), 30 hops max, 40 byte packets
 1  modemcable001.2-113-216.mmtl.videotron.net (216.113.2.1)  442.094 ms
!H *  12.705 ms !H

Thank You!
-- 
[Malartre][malartre@videotron.ca]


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