[B.A.T.M.A.N.] Batman never stabilizes a route for nodes

[B.A.T.M.A.N.] Batman never stabilizes a route for nodes

[Outback Dingo]

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Batmand never established a stable route for clients, ie. they never get
reliable internet, actually to be honest, they get 0 internet cause routing
always loops

Scenerio 30 nodes, 5 gateways, OpenWRT Trunk Batman ver 1105
batman gateway client expired

http://pastebin.com/m1677070a

i also found this thread from before showing a similiar issue

https://list.open-mesh.net/pipermail/b.a.t.m.a.n/2007-September/000277.html

question is how do i get the routes to stabilize so the mesh functions

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Re: [B.A.T.M.A.N.] Batman never stabilizes a route for nodes

[Marek Lindner]

On Thursday, 11. September 2008 21:01:11 Outback Dingo wrote:
> Batmand never established a stable route for clients, ie. they never get
> reliable internet, actually to be honest, they get 0 internet cause routing
> always loops

Please be precise here: Do you see routing loops or is your UDP connection not 
stable (as indicated by your log) ?


> i also found this thread from before showing a similiar issue
>
> https://list.open-mesh.net/pipermail/b.a.t.m.a.n/2007-September/000277.html

This may or may not apply here. I have a look into the code later. Do you use 
different hardware for your gateways and clients or always the same ?


> question is how do i get the routes to stabilize so the mesh functions

As I mentioned before we need a tcpdump of your traffic to help you. Even 
better would be a wireshark log from both ends that we can analyze.

Greetings,
Marek

Re: [B.A.T.M.A.N.] Batman never stabilizes a route for nodes

[Outback Dingo]

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ok, im getting tcpdumps, this is a test bed of the same hardward atheros
based Ubiquity NS2 devices running OpenWRT trunk
1 gateway -> 70 meters -> 1 node
no batgat, batmand running
it goes into this constant loop as shown in

http://pastebin.com/md162302 which is from last night 10PM

where the gateway and node continuously go into this ip expired loop for
5-15 minutes
causing routing for clients to go away, and network unstability, then it
appears to come back for a while

I also have 21 nodes, same hardware, running batgat which still crashed as
Gustavo pointed out
of which the logs were forwarded, the test bed has been setup to remove
batgat and look for stability

im tcpdumping on both client and gateway now, ill forward the result of
these logs in a bit
as for wireshark ill make a build with that and see if i can get these logs
also

On Fri, Sep 12, 2008 at 9:31 AM, Marek Lindner <lindner_marek@yahoo.de>wrote:

> On Thursday, 11. September 2008 21:01:11 Outback Dingo wrote:
> > Batmand never established a stable route for clients, ie. they never get
> > reliable internet, actually to be honest, they get 0 internet cause
> routing
> > always loops
>
> Please be precise here: Do you see routing loops or is your UDP connection
> not
> stable (as indicated by your log) ?
>
>
> > i also found this thread from before showing a similiar issue
> >
> >
> https://list.open-mesh.net/pipermail/b.a.t.m.a.n/2007-September/000277.html
>
> This may or may not apply here. I have a look into the code later. Do you
> use
> different hardware for your gateways and clients or always the same ?
>
>
> > question is how do i get the routes to stabilize so the mesh functions
>
> As I mentioned before we need a tcpdump of your traffic to help you. Even
> better would be a wireshark log from both ends that we can analyze.
>
> Greetings,
> Marek
>
> _______________________________________________
> B.A.T.M.A.N mailing list
> B.A.T.M.A.N@open-mesh.net
> https://list.open-mesh.net/mm/listinfo/b.a.t.m.a.n
>

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Re: [B.A.T.M.A.N.] Batman never stabilizes a route for nodes

[Marek Lindner]

On Friday, 12. September 2008 11:12:21 Outback Dingo wrote:
> ok, im getting tcpdumps, this is a test bed of the same hardward atheros
> based Ubiquity NS2 devices running OpenWRT trunk

Then it is not related to your hw and the link posted earlier does not help 
here.


> http://pastebin.com/md162302 which is from last night 10PM

Your log is pretty interesting. It shows that the basic functionality is there 
but does not work reliably. The gateway is sending the keep alive reply to 
the client which further indicates that we don't have an endianess issue 
here.


> I also have 21 nodes, same hardware, running batgat which still crashed as
> Gustavo pointed out
> of which the logs were forwarded, the test bed has been setup to remove
> batgat and look for stability

Do you intend to test the latest stability patches from Sven ? May be it 
solves your problem. It would be interesting to find out why the network is 
less flaky if you use the module.


> im tcpdumping on both client and gateway now, ill forward the result of
> these logs in a bit
> as for wireshark ill make a build with that and see if i can get these logs
> also

Cool !

Greetings,
Marek