Re: Adhoc Connection

On Tue, 2010-03-23 at 12:36 +0200, Mohammad Abdelhadi wrote:

> Thank you for the reply, I did mark the interface as unmanaged and I
> confirmed that, then I repeated  the steps and I established two
> interfaces using the same cell (checked by iwconfig) but still when I
> use (ping) command to test the connection
> (https://help.ubuntu.com/community/WifiDocs/Adhoc)   the result is
> "Destination Host Unreachable"...  Any suggestions?

It worked for me.

That's how you can troubleshoot the problem:

Make sure both interfaces are in ad-hoc mode, using the same channel and
ESSID, and the cell number is indeed the same.

Make sure both cards see each other in the scan results.  The MAC
address shown by iwlist is the cell address of the other card.

Use ifconfig to check that both cards have different IP addresses.  Use
route to see if the remote IP address is routed via the wireless card.

Run ping on one side and use tshark on both sides on the wireless
interface to make see if the packets are going in both directions.

Use iptables to see if there are any firewall rules that would prevent
sending or receiving packets.

Use a separate interface in monitor mode to see what is happening on the
air.

-- 
Regards,
Pavel Roskin

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