Hi batman-adv community,
We have been building openwrt 15.05 + batman-adv mesh network for over 2 years, they work great.
We are planning to use batman-adv gateways + 4G modems. For an example: our mesh network is with 20 nodes, 3 nodes have 4G modems connected.
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). 1.2) This behavior is expected, right?
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. - By this setup, all batman-adv clients get ip via dhcp and via modem. 2.1) Is this the suggested setup to use batman-adv gateways?
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?
Thanks. Xuebing Wang
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 ...
- 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 ?
- 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 ?
- 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
b.a.t.m.a.n@lists.open-mesh.org
-
Marek Lindner -
Xuebing Wang