Any suggestions about configuring batman-adv gateways + modems

Xuebing Wang
2019-11-11T00:52:03Z

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