[Babel-users] able to ping to neighbor but no entry in routing table

Harshal Vora harshal at amideeptech.com
Fri Mar 28 15:38:41 UTC 2014


Hi,

As suggested by you, we configured /32 routes for ad-hoc network.
Raspberry pi's (both edge and non-edge systems) are able to connect to 
each other, but now even with the same configurations on my laptop I am 
not able to connect to that network.

As soon as I start babeld on my laptop, all the raspberry pi's get 
negative route to my laptop.
My laptop does not get any route to these systems.

Also, I noticed that I can no longer access the raspberry pi's through 
ethernet network.
I could access all other devices on the ethernet network except 
raspberry pi's.
Only after I kill babeld on my laptop, I can access raspberry pi_'_s via 
ethernet network.
Consider that I am running babeld only on wlan0 interface and not on 
eth0 interface on my laptop as well as pi's.

Thanks,
Regards,
__
On 03/27/2014 01:40 AM, Juliusz Chroboczek wrote:
>> If I understood correctly, we should use addresses with netmask
>> 255.255.255.255
> Yes, although I recommend thinking in terms of prefix length instead
> of netmask.
>
>> But with this netmask, each device will think that it is the only IP
>> in the adhoc network
> No.  Every device will think it is the only device that's reachable
> without a dynamically installed route -- the default "on link"
> assumptions of the kernel will be disabled.
>
>> How does babeld work in this case?
> Very well.
>
> -- Juliusz

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