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xen-devel
[Xen-devel] Re: [RFC] ARP notify option
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To: |
Chris Friesen <cfriesen@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [RFC] ARP notify option |
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From: |
Pekka Savola <pekkas@xxxxxxxxxx> |
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Date: |
Wed, 7 Mar 2007 08:42:39 +0200 (EET) |
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zach@xxxxxxxxxx, jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, jeff@xxxxxxxxxx, ian.pratt@xxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, rusty@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, chrisw@xxxxxxxxxxxx, ak@xxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, Stephen Hemminger <shemminger@xxxxxxxxxxxxxxxxxxxx>, David Miller <davem@xxxxxxxxxxxxx>, Christian.Limpach@xxxxxxxxxxxx |
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Wed, 07 Mar 2007 01:38:26 -0800 |
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<20070301164214.4a40bc59@freekitty> <45E7764A.7000100@xxxxxxxx> <20070301173030.754514ec@freekitty> <20070305.203536.92584097.davem@xxxxxxxxxxxxx> <20070306105132.52c77491@freekitty> <45EDDA8F.5060106@xxxxxxxxxx> |
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On Tue, 6 Mar 2007, Chris Friesen wrote:
Stephen Hemminger wrote:
+arp_notify - BOOLEAN
+ Define mode for notification of address and device changes.
+ 0 - (default): do nothing
+ 1 - Generate gratuitous arp replies when device is brought up
+ or hardware address changes.
Did you consider using gratuitous arp requests instead? I remember reading
about some hardware that updated its arp cache on gratuitous requests but not
gratuitous replies.
You might be interested in taking a look at:
http://tools.ietf.org/id/draft-cheshire-ipv4-acd
There has been some follow-up discussion on this in the thread
starting at:
http://www1.ietf.org/mail-archive/web/int-area/current/msg00611.html
In particular, you may be interested in this comment about ARP
request and ARP reply for gratuitous ARP:
http://www1.ietf.org/mail-archive/web/int-area/current/msg00669.html
--
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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