RE: what's the meaning of the 0.0.0.0?
From: Daniel B. Cid (danielcid_at_yahoo.com.br)
Date: 07/22/03
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To: rogerg@cox.net Date: 22 Jul 2003 13:26:57 -0400
In this case the 0.0.0.0 means a broadcast (DHCP or bootp).
But in other situations the 0.0.0.0 can be localhost or the
default gateway(cisco).
$route -n
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
$route
default 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
$telnet 0.0.0.0 80
Trying 0.0.0.0...
Connected to 0.0.0.0 (0.0.0.0).
...
[]`s
Daniel B. Cid
>On Mon, 2003-07-21 at 18:43, Roger A. Grimes wrote:
> It's a way of indicating the default gateway. It appears like something is
> trying to identify the default gateway IP address.
>
> -----Original Message-----
> From: SB CH [mailto:chulmin2@hotmail.com]
> Sent: Monday, July 21, 2003 1:38 AM
> To: security-basics@securityfocus.com
> Subject: what's the meaning of the 0.0.0.0?
>
>
> Hello,all .
>
> I can see lots of 0.0.0.0 arp messages like below.
>
> what's the meaning of the message?
> is it a useful message or not?
> How can I disable this message?
>
>
> Thanks in advance .
>
> 14:26:12.617778 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:13.038609 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:13.165624 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:13.737573 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:13.802463 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:14.689171 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:15.113800 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:15.237141 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:15.815065 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:15.867650 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:16.760656 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:17.181257 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:17.308086 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
> 14:26:17.880251 arp who-has 0.0.0.0 (Broadcast) tell 0.0.0.0
>
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- Previous message: David J. Bianco: "Re: building an FAQ for Security-Basics"
- In reply to: Roger A. Grimes: "RE: what's the meaning of the 0.0.0.0?"
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