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The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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RE: [vox-tech] strange network question
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RE: [vox-tech] strange network question


  • Subject: RE: [vox-tech] strange network question
  • From: "Deja User" <unix_admin@my-dMAPSeja.com>
  • Date: Tue, 20 Feb 2001 03:53:37 -0800

Hey, Pete, from my limited experience 127.0.0.1 is the way to ping yourself. I've 
never heard of pinging your won ip address any other way, but I'm sure there are more 
experienced people who might have the definitive answer. If the "pingee" and the 
"pinger" are the same address> ret=-1 (?) Intuitively, to me at least, pinging your 
loopback (127.0.0.1) makes sense (down the stack, to the nic, back up the stack), but 
sending a ping to the address you are pinging from? If I'm missing something, someone 
please let me know how that works. Where would the ping go? Seems like it would go 
nowhere.

>Date: Mon, 19 Feb 2001 13:54:34 -0800
>To: vox-tech@lists.lugod.org
>Subject: [vox-tech] strange network question
>From: Peter Jay Salzman <p@dirac.org>
>Reply-To: vox-tech@franz.mother.com
>
>dear all,
>
>what does it mean if i have perfect net connectivity (can ping, ssh, etc
>wherever i please), but i can't ping my own ip address?
>
>i never saw this before, and it's confusing me:
>
>ping:~# ifconfig
>eth1      Link encap:Ethernet  HWaddr 00:A0:C9:00:C8:F8
>          inet addr:209.233.102.35  Bcast:209.233.102.255 Mask:255.255.255.0
>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:7801 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:1873 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:100
>          Interrupt:11 Base address:0x4000
>
>ping:~# ping lugod.org
>PING lugod.org (207.215.67.40): 56 data bytes
>64 bytes from 207.215.67.40: icmp_seq=0 ttl=252 time=219.9 ms
>
>ping:~# ping 209.233.102.35
>PING 209.233.102.35 (209.233.102.35): 56 data bytes
>ping: sendto: Invalid argument
>ping: wrote 209.233.102.35 64 chars, ret=-1
>
>no IRQ conflicts.  wierd!
>
>pete
>
>-- 
>"It's better to be safe than assimilated."                   p@dirac.org
>                      -- Chakotay                            www.dirac.org/p
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>Comment: For info see http://www.gnupg.org
>
>iEYEARECAAYFAjqRlhoACgkQo7kZRWfqlR2pTwCePg1F+amzREqpChn6wMQQfW8G
>gAAAnizA7/iUhdaYYsvKkgKwxQnD7aTa
>=b1fk
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