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Date:      Sun, 1 May 2011 23:32:57 -0400
From:      Arnaud Lacombe <lacombar@gmail.com>
To:        "Li, Qing" <qing.li@bluecoat.com>
Cc:        "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Ingo Flaschberger <if@xip.at>
Subject:   Re: interface ip arp
Message-ID:  <BANLkTikA4OZ=it0PCRus0Jhfj8me=P071Q@mail.gmail.com>
In-Reply-To: <B143A8975061C446AD5E29742C53172304AC91@PWSVL-EXCMBX-01.internal.cacheflow.com>
References:  <alpine.LRH.2.00.1104140140240.8693@filebunker.xip.at> <alpine.LRH.2.00.1105020149570.27379@filebunker.xip.at> <10E473DB-A690-4468-953A-08D87AE07F68@bluecoat.com> <B143A8975061C446AD5E29742C53172304AC91@PWSVL-EXCMBX-01.internal.cacheflow.com>

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Hi,

On Sun, May 1, 2011 at 10:50 PM, Li, Qing <qing.li@bluecoat.com> wrote:
> jeez, this bug has been around for quite a while ...
>
> Please try patch at =A0http://people.freebsd.org/~qingli/arp.patch
>
Do not help:

# sh -x test.sh
+ ifconfig vr2 up 192.168.24.1
+ arp -s 192.168.24.2 0:0:0:0:0:1
+ arp -a
? (192.168.24.1) at 00:00:24:cb:f4:92 on vr2 permanent [ethernet]
? (192.168.24.2) at 00:00:00:00:00:01 on vr2 permanent [ethernet]
+ ifconfig vr2 down
+ arp -a
+ ifconfig vr2 up
+ arp -a
? (192.168.24.1) at 00:00:24:cb:f4:92 on vr2 permanent [ethernet]

As you can see, the address is lost when the interface is brought down.

 - Arnaud

> -- Qing
>
> ________________________________________
> From: owner-freebsd-net@freebsd.org [owner-freebsd-net@freebsd.org] on be=
half of Li, Qing
> Sent: Sunday, May 01, 2011 4:54 PM
> To: Ingo Flaschberger
> Cc: freebsd-net@freebsd.org
> Subject: Re: interface ip arp
>
> That's not the expected behavior, probably a bug, I will take a look ...
>
> -- Qing
>
>
>
>
> On May 1, 2011, at 4:51 PM, "Ingo Flaschberger" <if@xip.at> wrote:
>
>>> is it expected behaviour that the static, permanent arp entry of the in=
terface ip disappear after ifdown/ifup at 8.x release?
>>>
>>> ifconfig em0 10.20.20.1/24
>>> arp -an | grep 10.20.20.1
>>> ? (10.20.20.1) at xx:xx:xx:xx:xx:xx on em0 permanent [ethernet]
>>> ifconfig em0 down
>>> ifconfig em0 up
>>> arp -an | grep 10.20.20.1
>>> nothing
>>
>> resend this "question" - as there was no respone.
>>
>> Kind regards,
>> =A0 =A0Ingo Flaschberger
>>
>> _______________________________________________
>> freebsd-net@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-net
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