Thread (15 messages) 15 messages, 4 authors, 2007-12-25

Re: [PATCH net-2.6][NEIGH] Updating affected neighbours when about MAC address change

From: David Shwatrz <hidden>
Date: 2007-12-23 13:21:05

Yoshfuji,

Thanks, you are right ! soon I will send the patches.

Thanks !
DS


On Dec 23, 2007 3:13 PM, YOSHIFUJI Hideaki / 吉藤英明
[off-list ref] wrote:
In article [ref] (at Sun, 23 Dec 2007 15:04:37 +0200), "David Shwatrz" [off-list ref] says:
quoted
Hello,

quoted
You should iterate all of ifa_list (for IPv4) / addr_list (for IPv6).
For IPv6, we also have anycast (maintained by ac_list) as well.
I am not sure that we need to iterate all of ifa_list in IPv4.
The reason is that we end with arp_send, and it initiates a broadcast.
So all neighbours will receive it and update their arp tables
accordingly.
The dest hw in the arp_send is NULL according to this patch ; this means that
we will assign dev->broadcast to dest_hw  in apr_create().

It seems to me there's no reason to send more than one broadcast.
Urgh? what is happend if you have multiple IPv4 addresses on the device?

quoted
In IPv6, I need to check, since it is multicast.
Please read RFC2461 Section 7.2.6.  In short we should send a few
unsolicited NA, but I think you can start from sending once per an
address.

--yoshfuji
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