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