From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <4E42C546.7010003@inti.gob.ar> Date: Wed, 10 Aug 2011 14:52:06 -0300 From: gtolon@inti.gob.ar MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1"; format="flowed" Content-Transfer-Encoding: quoted-printable Subject: [B.A.T.M.A.N.] Multiple DHCP Gateways Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: b.a.t.m.a.n@lists.open-mesh.org Hi I=B4m testing the Gateway roaming capabilities of Batman-adv (using=20 2011.1.0 version). I setted two computers as Gateway servers with DHCP=20 servers running on them and other as Gateway client, configured as class=20 3. Then i stressed individually the Gateway server=B4s links to make the=20 client choose the not stressed one. I confirmed that when te client=20 sends a layer 3 broadcast DHCP request, Batman redirects that request=20 only to the best gateway. However, when the original gateway becomes=20 worse than the alternative, and the client chooses the new one as=20 preferred (observed with batctl gwl) i noticed that the subsequent=20 request DHCP messages are sent to the original server, even if it=20 doesn=B4t have the best link. I guess that=B4s because these subsequent DHCP requests are made as=20 Unicast to the original server and so Batman doesn=B4t redirect them, but=20 i wonder how this behavior affects the network balance, because the=20 computers would get tied always to the original DHCP and IP default=20 gateway even if they moved, right? Thank you very much