Hi, On Friday, 8 November 2019 18:51:14 HKT Xuebing Wang wrote: > 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 ? > 2) My second thought is to bridge batman-adv interface and wan interface > (modem). This works great, I do not see issue (1.1) above. Can you elaborate ? Are you comparing bridging vs routing ? What's the main difference between 1.1 and 2. which makes you think it works better ? > 3) When I bridge batman-adv interface with other interface (as in step 2 > above), can I use batman-adv interface via *ipv6* to ping other > batman-adv nodes? You can always ping or transfer any IPv4/IPv6 payload over batman-adv regardless of your WAN setup. In fact, you could operate batman-adv without any WAN uplink at all. Cheers, Marek
Description: This is a digitally signed message part.