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Date: Tue, 4 Apr 2006 18:07:15 +0200
From: boink <lordboink@gmail.com>
To: "Matt Emmerton" <matt@gsicomp.on.ca>
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Cc: freebsd-questions@freebsd.org
Subject: Re: arp -a takes 40 secs to display cached MAC addresses. Is
	thisnormal?
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Matt,

You're absolutely right - thank you.

Best wishes,
boink

On 04/04/06, Matt Emmerton <matt@gsicomp.on.ca> wrote:
>
>
> ----- Original Message -----
> From: "boink" <lordboink@gmail.com>
> To: <freebsd-questions@freebsd.org>
> Sent: Monday, April 03, 2006 6:06 PM
> Subject: arp -a takes 40 secs to display cached MAC addresses. Is
> thisnormal?
>
>
> Dear FreeBSD,
>
> # uname -a
> FreeBSD MyFBSD.int.vir 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Thu Nov  3
> 09:36:13 UTC 2005
> root@x64.samsco.home:/usr/obj/usr/src/sys/GENERIC  i386
>
> # /usr/bin/time -h arp -a
> MyFBSD (10.1.2.1) at 00:00:f8:10:6c:8a on dc0 permanent [ethernet]
> MyFirewall (10.1.2.254) at 00:0d:b9:11:a5:b9 on dc0 [ethernet]
> ? (10.1.2.255) at ff:ff:ff:ff:ff:ff on dc0 permanent [ethernet]
>         40.22s real             0.00s user              0.00s sys
>            ^
> ...where:
>
> ----
>
> arp is attempting to do a reverse-DNS lookup on 10.1.2.255.  No answer is
> received from your DNS server in the allowable time-out interval, so it
> displays the name as '?'.
>
> Redo the same test using 'arp -a -n' and you'll see it complete
> immediately.
>
> --
> Matt Emmerton
>
>