From: Andrew Lunn <andrew@lunn.ch>
To: The list for a Better Approach To Mobile Ad-hoc Networking
<b.a.t.m.a.n@lists.open-mesh.net>
Subject: Re: [B.A.T.M.A.N.] batman-adv gateway support
Date: Tue, 5 Jan 2010 07:31:46 +0100 [thread overview]
Message-ID: <20100105063146.GE9585@lunn.ch> (raw)
In-Reply-To: <201001042344.02273.lindner_marek@yahoo.de>
> * The third patch checks whether locally received packets are DHCP
> queries and forwards them via uncicast to the best gateway instead
> of broadcasting them.
Can this be made a bit more robust? An easy DoS would be to offer to
be a gateway, but not run DHCP. All my near neighbours then fail to
get an IP address and i have quiet network with more bandwidth for
myself.
Could we inspect the DHCP packet a bit more deeply, look for DHCP
discovery packets, unicast 3 in 4 to the best gateway, broadcast 1 in
4 as a fallback.
Andrew
next prev parent reply other threads:[~2010-01-05 6:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-04 15:44 [B.A.T.M.A.N.] batman-adv gateway support Marek Lindner
2010-01-04 15:46 ` [B.A.T.M.A.N.] [PATCH 1/3] batman-adv: adding gateway functionality Marek Lindner
2010-01-04 15:46 ` [B.A.T.M.A.N.] [PATCH 2/3] batctl: add support for gateway mode Marek Lindner
2010-01-04 15:46 ` [B.A.T.M.A.N.] [PATCH 3/3] batman-adv: send DHCP requests directly to the chosen gw Marek Lindner
2010-01-05 6:43 ` Andrew Lunn
2010-01-05 10:00 ` Marek Lindner
2010-01-05 11:09 ` Andrew Lunn
2010-01-04 16:48 ` [B.A.T.M.A.N.] batman-adv gateway support predrag balorda
2010-01-04 16:55 ` Sven Eckelmann
[not found] ` <de7865071001040856u1b661bdcxb319ffe60b2b367b@mail.gmail.com>
2010-01-04 17:02 ` Sven Eckelmann
2010-01-04 20:23 ` Donald Gordon
2010-01-04 20:58 ` Andrew Lunn
2010-01-04 21:20 ` Donald Gordon
2010-01-04 21:45 ` Linus Lüssing
2010-01-04 22:27 ` Donald Gordon
2010-01-05 6:31 ` Andrew Lunn [this message]
2010-01-05 9:50 ` Marek Lindner
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