linux-kernel - Re: [PATCH net] bridge: ebtables: fix reception of frames DNAT-ed to bridge device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 15 Mar 2017 15:27:20 +0100
From:   Linus Lüssing <linus.luessing@...3.blue>
To:     Pablo Neira Ayuso <pablo@...filter.org>
Cc:     Florian Westphal <fw@...len.de>, netdev@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        bridge@...ts.linux-foundation.org, netfilter-devel@...r.kernel.org,
        coreteam@...filter.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] bridge: ebtables: fix reception of frames DNAT-ed to
 bridge device

On Wed, Mar 15, 2017 at 11:42:11AM +0100, Pablo Neira Ayuso wrote:
> I'm missing then why redirect is not then just enough for Linus usecase.

For my usecase, the MAC address is configured by the user from a
Web-UI. It may or may not be the one from the bridge device.

Besides, found it counter intuitive that DNAT did not work here
and took me some time to find out why. At least I didn't read about
any such known limitations of the dnat target in the ebtables
manpage.