Messages in this thread | | | Date | Sun, 17 Aug 2003 17:59:54 +0200 | From | "Carlos Velasco" <> | Subject | Re: [2.4 PATCH] bugfix: ARP respond on all devices |
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On 17/08/2003 at 16:28 Alan Cox wrote:
>Linux doesn't issue "bad" requests. Linux will reply when it is >asked for an address that it owns, as per RFC826, unless you chose >to change the behaviour with things like arpfilter.
We are not talking about ARP Replies, we are talking about ARP Requests. You can see the Richard post here, same issue I reported several weeks ago: http://marc.theaimsgroup.com/?l=linux-net&m=106094924813337&w=2
== On eth0, we see:
11:23:55.650514 0:4:75:ca:c4:ef Broadcast arp 42: arp who-has 10.10.10.1 tell 212.xxx.yyy.9 ==
Linux is sending an ARP Request to a LAN where the source IP address of the packet has not any sense in that IP network. And, at least, 2 RFCs are stating that other devices should not reply to this packet. Currently know Cisco, Foundry; possibly others, and possibly others coming as ARP storms are not desired.
Regards, Carlos Velasco
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