You said previously:
I configured a port mirroring on port 16 from port 25 (I tried mirror in
solo, mirror out solo, and both)
http://support.3com.com/documents/switches/baseline/Switch_2426_2226_2250_User_Guide.pdf
[Page 71 covers Port Mirroring]
Port 16 should be set as Port Type Monitor
Port 25 should be set as Port Type Mirror
From what I'm reading, your workstation is attached to Port 16 and port 25
is connected to your Internet access device.
Hope this helps.
Lori
----- Original Message -----
From: "Ronan SAVY" <R.SAVY@xxxxxxxxxx>
To: "Community support list for Wireshark" <wireshark-users@xxxxxxxxxxxxx>
Sent: Saturday, March 13, 2010 9:31 AM
Subject: [Wireshark-users] RE : Can't see http packets
ok
as i said i tried every option of monitoring port, may be the restriction
seeing only broadcast come from my switches configuration... any hint where
i should have a look on switche restriction?
or may be on wireshark checking for unicast incoming, right?
________________________________________
De : wireshark-users-bounces@xxxxxxxxxxxxx
[wireshark-users-bounces@xxxxxxxxxxxxx] de la part de Martin Visser
[martinvisser99@xxxxxxxxx]
Date d'envoi : samedi 13 mars 2010 11:35
� : Community support list for Wireshark
Objet : Re: [Wireshark-users] Can't see http packets
My guess is that if you are only seeing NBNS, DHCP, ARP, IGMP
protocol packets you are only seeing broadcasts from the rest of the
network.
You might need to really check that your port mirroring is working
correctly.
Regards, Martin
MartinVisser99@xxxxxxxxx<mailto:MartinVisser99@xxxxxxxxx>
On Sat, Mar 13, 2010 at 2:03 AM, Ronan SAVY
<R.SAVY@xxxxxxxxxx<mailto:R.SAVY@xxxxxxxxxx>> wrote:
Hi
I would like to grab the http packet in order to have a clear view of web
usage before configuring some kind of filter over my compagnie network.
Here is what I installed:
I have a Windows XP SP3 workstation with wireshark installed on it and 2 nic
one is a nvidia nforce and the other a D-link DFE-530TX
I connected the D-link NIC on port 16 of my 3com 2226-SFP Plus
Behind my 3 com switch I have 5 3com baseline switches connected in cascade
On port 25 of my switch I have a Linksys BEFSX41 with on his wan my FAI
modem going out on internet
I configured a port mirroring on port 16 from port 25 (I tried mirror in
solo, mirror out solo, and both)
I checked that the D-link nick can work on promiscuous mode (using promqry)
When I launch wireshark from station I can�t see any http traffic going out
safe from SSDP protocol
I also see other packet grab from other machine on my network, packet like :
- NBNS
- DHCP
- ARP
- IGMP
Even when I browse internet on the workstation where wireshark is installed
using the second NIC� I can�t see the HTTP request going through
May be I did something wrong but I don�t know what? I checked the advanced
option of my NIC to see if there is Checksum offload option.. but nothing.
Any help would be most welcome as I have no more idea on what else I can do.
thanks
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