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:[EMAIL PROTECTED] > Sent: Monday, July 21, 2003 1:38 AM > To: [EMAIL PROTECTED] > 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 > > _________________________________________________________________ > 상큼한 만남과 따뜻한 공동체 생활... 지금 MSN 커뮤니티에서 > 시작하세요! > http://groups.msn.com/?pgmarket=ko-kr > > > --------------------------------------------------------------------------- > ---------------------------------------------------------------------------- > > > --------------------------------------------------------------------------- > ---------------------------------------------------------------------------- --------------------------------------------------------------------------- ----------------------------------------------------------------------------
