[SunHELP] arp command

[Wally A. Alubankudi]

Thanks.
Wally


>From: DAUBIGNE Sebastien - BOR <Sebastien.DAUBIGNE at sema.fr>
>Reply-To: sunhelp at sunhelp.org
>To: sunhelp at sunhelp.org
>Subject: RE: [SunHELP] arp command
>Date: Mon, 9 Jul 2001 19:46:58 +0200
>
>The "number" you requested is the MAC (ethernet, ...) address of the host.
>
>To send packets to hosts directly attached to your LAN via IP, the kernel
>has to maitain  an IP-to-Ethernet lookup table.
>This job is done automatically by the kernel every time he sends packets to
>a local host which is not already in the ARP table.
>
>Every ARP table entry is cleared after a certain amount of time (TTL), so
>that the entry could be refreshed if the corresponding host's IP address
>changes.
>
>So you don't usually have to issue "arp -d", even "arp -s", at least for
>Ethernet because the kernel does it.
>
>If  you want to add back the entry you deleted, just send packets to the
>host.
>
>e.g. :
>
># ping  hostname
># arp -l
>
>
>---
>Sebastien DAUBIGNE
>sebastien.daubigne at sema.fr - 05.57.26.56.36
>Sema Global Services - AFM/DW/Pessac
>
>
>	-----Message d'origine-----
>	De:	Wally A. Alubankudi [SMTP:walubank at hotmail.com]
>	Date:	lundi 9 juillet 2001 18:51
>	:	sunhelp at sunhelp.org
>	Objet:	[SunHELP] arp command
>
>	Hi All,
>	      I was just fiddling with arp command and I run #arp -d
>hostname and I
>	got a result that it has been deleted. I decided to add it back by
>running
>	#arp -s hostname but arp command want be to add some numbers which i
>dont
>	know where to get it. Please help.
>	Wally
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