Wireshark · Ethereal-users: RE: [Ethereal-users] Gigabit card and captures

["Torres, Javier" <Javier.Torres@xxxxxxxxxx>]

I was using a windows machine which is now getting rebuilt into a FC4 machine. 
I had 2 interfaces one for each switch and those interfaces had multiple vlans of information going to them.

This is done by running the following on the switch

switchport

 switchport capture

 switchport capture allowed vlan 184-191

 

On the machine side was running with:

dumpcap -i 5 -w capture_`date +%m%d%Y`.pcap -b filesize:20000 > /dev/null &

 

So this should have captured all traffic going through those vlans both ways.

 

Javier

 

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From: ethereal-users-bounces@xxxxxxxxxxxx [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Gianluca Varenni
Sent: Friday, July 21, 2006 2:31 PM
To: Ethereal user support
Subject: Re: [Ethereal-users] Gigabit card and captures

 

Ethereal/Wireshark just shows the packets that the underlying capture engine provides, so usually libpcap/WinPcap.

 

Which OS are you using?

 

What are you using to sniff the traffic between the two machines? Hub/switch?

 

Have a nice day

GV

 

----- Original Message -----

From: Torres, Javier

To: Ethereal user support

Sent: Friday, July 21, 2006 9:13 AM

Subject: RE: [Ethereal-users] Gigabit card and captures

 

I have noticed the same behavior with my gigabit nic card.  It should be capturing both directions with the line I have in, but I only see one-way traffic.

 

If anyone has something for us to try that would be great,

Javier

 

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From: ethereal-users-bounces@xxxxxxxxxxxx [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Pablo Gil
Sent: Friday, July 21, 2006 4:40 AM
To: Ethereal user support
Subject: RE: [Ethereal-users] Gigabit card and captures

 

 

HI,

 

While capturing messages from two devices working at 10Mbps, the internal Gigabit card of my laptop only captures messages in one direction.

 

If I change the card properties to 10Mbps I do not receive any messages at all. Moreover If I make the capture with my desktop PC the frames are captured in both directions.

 

Any suggestion?

Thanks

 

Pablo

 

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