Date: Mon, 3 Apr 2006 20:18:02 -0400 From: "Matt Emmerton" <matt@gsicomp.on.ca> To: "boink" <lordboink@gmail.com>, <freebsd-questions@freebsd.org> Subject: Re: arp -a takes 40 secs to display cached MAC addresses. Is thisnormal? Message-ID: <003101c6577d$3d0d05f0$1200a8c0@gsicomp.on.ca> References: <73cb07950604031506w4236d418wdb7f6b790e7ebca1@mail.gmail.com>
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----- 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
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