RE: Gigabit card and captures

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

 

________________________________

From: [email protected]
[mailto:[email protected]] 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 <mailto:[email protected]>  

	To: Ethereal user support <mailto:[email protected]>  

	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

	 

	
________________________________


	From: [email protected]
[mailto:[email protected]] 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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