Wireshark · Wireshark-dev: Re: [Wireshark-dev] tshark fails to capture packet on IB interface

[Guy Harris <guy@xxxxxxxxxxxx>]

Sharma, Karun wrote:

> I am trying to capture packets on Infiniband interface but getting error 
> (see below). tshark is working fine for eth0 interface. I am using 
> 0.99.4 version and RHEL4 up3 x86_64 machine.
> Is there any known solution/workaround for this issue? Can you please 
> send me a patch to solve this issue.

What happens if you try to do

	tcpdump -s 65535 -i ib0

I very strongly suspect you'll get the same "ioctl: Value too large for 
defined data type" message.

If so, this is a libpcap issue.  I'll send you the URL for a tarball 
with the source to a new version of libpcap with better debugging 
information (i.e., saying *which* ioctl was having the problem).  You'll 
have to build that, along with tcpdump, and try capturing with the new 
tcpdump.