Thanks for your quick answer. A problem with a firewall was an idea
that also came to my mind but I disabled the Ubuntu firewall with the
command “sudo ufw disable” so that no firewall is running into my
machine and the USRP2-Host computer connection is made directly with a
1 Gb ethernet wire.
Furthermore there were no errors during the installation of the
software (via package manager).I run out of ideas…any suggestion?
On 09/07/2010 04:43 AM, Jorge M. wrote:
00:50:c2:85:35:a2 hw_rev = 0x0400
When a sniffer is running, the ethernet interface is placed into
“promiscuous” mode in which all ethernet frames are processed and passed
up to higher layers in the networking stack. In non-promiscuous
mode, only frames that are addressed to the particular hosts ethernet
address, and the broadcast address, are forwarded up the stack.
My understanding is that find_usrps sends out a broadcast packet, and
the responding USRP2 replies using a broadcast packet, but even
in non-promiscuous mode, the hosts interface should pass the broadcast
traffic “upwards”. I wonder if there’s some interaction with
firewall rules at play here as well?
Shirleys Bay Radio Astronomy Consortium