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Activation of mesh_no_rebroadcast for Mesh-on-WAN/LAN #652
Currently option mesh_no_rebroadcast '1' is only set on interface 'mesh_vpn' per default, but will also reduce load on the other cable based meshing variants. All ARP and most ICMPv6 on Freifunk Client Network is forewarded as broadcasts on mesh-level ethernet, where especially IPv6 Router Advertisements are consuming a lot of ressources on Nodes.
The comment of Linus Lüssing, who implemeted this option in batman-adv on September 2013:
Therefore at Freifunk Stuttgart we began to set this option manually on installations using Mesh-on-LAN and/or Mesh-on-WAN since September 2015 using SSH:
In times of very high broadcast and multicast traffic this prevented nodes from beeing overloaded, in particular TP-Link WR841N/ND.
Our proposal is to activate this option by default on mesh_wan and mesh_lan. This can be done e.g. with modification of two files:
With best regards from Stuttgart,
There is just one scenario that I could think of where things would break: A WDS wifi bridge solution with STA isolation enabled. And a mesh-on-wan/lan router connected to one of this bridge-STAs via cable. But I've never heard of anyone enabling STA isolation there.
So looks good to me.