Re: [B.A.T.M.A.N.] [PATCHv2 maint] batman-adv: avoid DAT to mess up LAN state

[Marek Lindner <mareklindner@neomailbox.ch>]

[-- Attachment #1: Type: text/plain, Size: 1107 bytes --]

On Monday, June 01, 2015 17:29:57 Antonio Quartulli wrote:
> When a node running DAT receives an ARP request from the LAN for the
> first time, it is likely that this node will request the ARP entry
> through the distributed ARP table (DAT) in the mesh.
> 
> Once a DAT reply is received the asking node must check if the MAC
> address for which the IP address has been asked is local. If it is, the
> node must drop the ARP reply bceause the client should have replied on
> its own locally.
> 
> Forwarding this reply means fooling any L2 bridge (e.g. Ethernet
> switches) lying between the batman-adv node and the LAN. This happens
> because the L2 bridge will think that the client sending the ARP reply
> lies somewhere in the mesh, while this node is sitting in the same LAN.
> 
> Reported-by: Simon Wunderlich <sw@simonwunderlich.de>
> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
> ---
> 
> Properly base this patch on top of maint.
> 
> 
>  distributed-arp-table.c | 18 +++++++++++++-----
>  1 file changed, 13 insertions(+), 5 deletions(-)

Applied in revision 9bbd794.

Thanks,
Marek

[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 473 bytes --]