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Date:      Fri, 2 Apr 1999 00:40:19 -0500 (EST)
From:      "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com>
To:        malartre@videotron.ca (Malartre)
Cc:        andyo@prime.net.ua, cjclark@home.com, freebsd-questions@FreeBSD.ORG
Subject:   Re: I cannot ping myself (DHCP+Cable Modem)
Message-ID:  <199904020540.AAA09341@cc942873-a.ewndsr1.nj.home.com>
In-Reply-To: <370440E1.A185397@videotron.ca> from Malartre at "Apr 1, 99 11:00:33 pm"

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Malartre wrote,
> "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.

[snip]

> 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

Wow, _something_ is messed up here. Did this get mangled in transit?
You're missing the '216.113.2.4' entry. I don't see your MAC address
anywhere either.

> 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

Whoo-hoo! Loopback works.

> 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

I guess you are still 4, not 227. Looks like you send out packets,
they go to the gateway which (as it should) does not do anything with
them. You machine does not seem to know that it is 216.113.2.4 and
sends the packets away rather than to itself.
-- 
Crist J. Clark                           cjclark@home.com


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