Wireshark-users: Re: [Wireshark-users] No TCP traffic
From: "Alan Middlehurst" <[email protected]>
Date: Thu, 07 Sep 2006 11:51:19 +0100
Hi Guy

ALL machines on hub A and B (which I have been looking at) are running at 100Mbit/s (or so the status of the network card says)

and yes as far as i can tell (amongst all the wiring) the switch is connecting together about 5 hubs 


>>> [email protected] 07/09/2006 11:01:21 >>>
Alan Middlehurst wrote:

> I am on machine A running wireshark, connected to hub A......
> The slow machine (lets call that B) is connected to hub B. This has
> no TCP packets showing (or HTTP for that matter, even though I have
> viewed web pages whilst capturing traffic)

HTTP packets are almost certainly TCP packets.

> I have captured packets from other machines on hub B, which all have
> lots of traffic including TCP and HTTP (and yes I'm doing the same
> things on any machines I'm testing on)

So the network adapter on machine B plugged into hub B is running at 100 
Mbit/s, as per

> 2, As far as I know Autoneg is working OK. The hub is connected to a
> switch but if I look at the connection on the local machine it says
> its connected at 100Mbps. Dont know if there is any other way of
> confirming  this?

Is the network adapter on machine A, plugged into machine A, also 
running at 100 Mbit/s?

What about the network adapters of the other machines plugged into hub B?

And where is the switch in this network?  Is it used to...

> Hub A and B are connected together.

...connect the two hubs?
Wireshark-users mailing list
[email protected] 

This message has been scanned for viruses and
dangerous content by IC-MailScanner, and is
believed to be clean.

For queries or information please contact:-

Internet Central Technical Support


The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer.

Total People aims to prevent the propagation of viruses, but cannot guarantee that this email is virus free.  You are advised to scan all attachments and open them at your own risk.