From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Reply-To: xbing6@gmail.com From: Xuebing Wang Subject: Any suggestions about configuring batman-adv gateways + modems Message-ID: <17dae71f-1ff8-a6c9-c2e5-fec78db34b29@gmail.com> Date: Mon, 11 Nov 2019 08:52:03 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: 8bit Content-Language: en-US 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, mareklindner@neomailbox.ch Hi Marek, Thank you for your help, as I did not subscribe to the mailing list, I did not get your reply. I subscribe to the mailing list now and I am writing a new email thread. >> We have been building openwrt 15.05 + batman-adv mesh network for over 2 >> years, they work great. > >hopefully, the batman-adv version you are using is newer than 15.05 ... > > >> 1) My first thought is to use batman-adv gateway (with 4G modem >> connected) as dhcp server, and forward batman-adv interface to wan >> interface (modem). >> >> 1.1)  But, there is an issue with this setup. Once a modem is down, >> nodes that are connected to this batman-adv gateway (with modem) can not >> automatically "roam" to another batman-adv gateway (with good modem >> connection). > >Why not ? What should prevent nodes or clients to choose another batman-adv >gateway ? When modem (for WAN uplink) at gateway is down and loses internet connection (but batman-adv connections with clients are good and dhcp server works good), can batman-adv clients know that internet connection at gateway is lost and "roam" to another gateway with good internet connection? Thanks. Xuebing Wang