Re: [B.A.T.M.A.N.] Manually Updating Translation table

["Linus Lüssing" <linus.luessing@c0d3.blue>]

Hi Kartik,

Have you considered using a Linux bridge? That's usually the most
common and easiest approach to get external clients into a
batman-adv mesh network. batman-adv will learn MAC addresses
from passed through traffic automatically.

Regards, Linus


On Wed, Aug 16, 2017 at 05:05:27PM +0200, Kartikeswar Koppula via B.A.T.M.A.N wrote:
> Date: Wed, 16 Aug 2017 17:05:27 +0200
> From: Kartikeswar Koppula <kartik@corenetdynamics.com>
> To: The list for a Better Approach To Mobile Ad-hoc Networking
>  <b.a.t.m.a.n@lists.open-mesh.org>
> Subject: Re: [B.A.T.M.A.N.] Manually Updating Translation table
> 
> HI Linus,
> 
> Thanks a lot for the reply. I will try to do what you have described.
> 
> I am trying to use BATMAN for mesh networking of mobile Networks,
> where the Mobile Gateway would be the BATMAN Node and UE (Client) is
> not a batman node.
> So I want to add UE's entry in Mobile Gateway's local translation
> table manually which will be broadcast-ed in OGM to other Mobile
> Gateway BATMAN nodes thereby UE's (clients) connected to other
> Gateway's will be able to reach UE's connected to first mobile
> gateway.
> 
> Best Regards,
> Kartik
> 
> On Wed, Aug 16, 2017 at 4:47 PM, Linus Lüssing <linus.luessing@c0d3.blue> wrote:
> > Hi,
> >
> > Currently, no there isn't. The only thing you could do to manually
> > add an entry from inside a node is by crafting a dummy packet with
> > the desired ethernet source address and transmit it on bat0. That
> > way batman-adv would add that MAC address. Deleting only happens
> > after a timeout though, no way to force it manually.
> >
> > In case you are thinking about implementing such a feature:
> > The Linux bridge has a feature like that to update the FDB
> > (forwarding database, for unicast addresses) or MDB (multicast
> > database). It uses netlink for that and you can use
> > /usr/sbin/bridge to easily add and remove entries from userspace.
> > That'd probably be the approach to mimic in batman-adv for such a
> > feature.
> >
> > Regards, Linus
> >
> > PS: Out of curiousity, could you share what you'd need such a
> > feature for?
> >
> >
> > On Wed, Aug 16, 2017 at 03:57:29PM +0200, Kartikeswar K wrote:
> >> Dear BATMAN Community members,
> >>
> >> I am new to BATMAN Mesh network and looking forward for answer to my
> >> query related to updating Local Translation Table in a BATMAN Node.
> >>
> >> I would like to make a mesh network where I would like to update the
> >> client entry in Local Translation manually. Is it possible to add the
> >> entry manually in translation table?
> >> If so, I would like to know how can I update this table in BATMAN from
> >> user space?
> >>
> >> Thanks in advance and would appreciate your responses.
> >>
> >> Thanks & Regards,
> >> Kartikeswar Koppula
> >> kartikeswar@gmail.com