Hi everybody,
As I check, batman-adv protocol, sends IP broadcast packets, to every slave interface, including the slave interface from which the broadcast packet is received. Is there any way for preventing the batman-adv from sending IP broadcast packets to some of the slave interfaces (etc. the one which the packet is received)?
Regards. Oytun
Hi,
On Wed, Mar 24, 2021 at 12:16:16PM -0000, oytunyapar@hotmail.com wrote:
Hi everybody,
As I check, batman-adv protocol, sends IP broadcast packets, to every slave interface, including the slave interface from which the broadcast packet is received. Is there any way for preventing the batman-adv from sending IP broadcast packets to some of the slave interfaces (etc. the one which the packet is received)?
When there is just a single neighbor on the interface a node received the packet on that batman-adv avoids sending it back automatically. E.g. this case here:
https://www.open-mesh.org/projects/batman-adv/wiki/Broadcast#IIII-Single-Nei...
If there are multiple neighbors on the receiving interface then batman-adv assumes that other neighbors might potentially not have received the packet from the original sender. And will therefore rebroadcast on the incoming interface, too.
If you are 100% sure that all other neighbors received it from the original sender then there is this old patch which isn't upstream though (including the discussion with why it was rejetected for upstream):
https://patchwork.open-mesh.org/project/b.a.t.m.a.n./patch/1380030033-11533-...
Regards, Linus
Hi Linus,
Thank you for the answer. Configuring batman-adv from /sys is deprecated in the last version (batctl is the only way now). I am not sure how to apply this patch. What do you suggest as a proper way of doing this?
Regards. Oytun
Hi Oytun,
Are you able to recompile the kernel module and batctl? If so, I could have a look at updating that patch for a more recent batman-adv version.
Actually, I'm also kind of curious about your use-case. Sounds like it's not 802.11 wifi you are using, right?
Regards, Linus
On Thu, Mar 25, 2021 at 12:58:15PM -0000, oytunyapar@hotmail.com wrote:
Hi Linus,
Thank you for the answer. Configuring batman-adv from /sys is deprecated in the last version (batctl is the only way now). I am not sure how to apply this patch. What do you suggest as a proper way of doing this?Regards. Oytun
Hi Linus,
I hard coded it, instead of making a configuration. We could use with this way. You are correct Linus, it's not 802.11 wifi. We are using MARLIN protocol (NATO STANAG-4691). This protocol aims for gaining TCP/IP features to HF and UHF radios. We are using BATMAN protocol, for inter-MARLIN network routing. MARLIN itself has features for handling routing, internally, for a single MARLIN network.
Regards. Oytun
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