*tcdump -i eth0*

On Monday, July 7, 2014 12:35:50 PM UTC-7, mickeyf wrote:
>
> I am trying to debug some network issues on a BBB re traffic between the 
> BBB and a web server. This BBB has is also using a canbus with the 
> socketcan interface. I don't have experience with these tools, but I 
> thought wireshark might help, and that I could use tcpdump on the BBB to 
> feed it. 
>
> When I try to run tcpdump, with or without explicitly specifying ether[0], 
> it complains that can0 does not have an IPv4 address assigned, and that CAN 
> link-layer filtering is not implemented, and exits. When I run "tcpdump 
> -D", it shows only can0, as if eth0 does not exist at all. ifconfig does 
> show eth0, and eth0 and can0 both work, I'm just trying to get more insight 
> into the details of the traffic on eth0.
>
> Can anyone tell my how to persuade tcpdump to ignore can0 and listen to 
> eth0?
>
> tcpdump 4.5.1
> libpcap 1.5.3
> Linux kernel 3.8.13 
>
> Thanks
>
>

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