Sorry.. I mean, can the ports that I want to monitor on switch A' ports but
the port I plug my analyser or PC with network analysis software is on
another switch eg switch B's port. They are on different switches, but the
two switches are connected via a trunk link.
Can the switch A ports copy the traffic to switch B port
what do u mean "Can it on two different switch but connected ??"
????????????
Can u please clarify ur question ???
Keyur.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
David spalding
Sent: Wednesday, April 04, 2001 8:59 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: Questtion on SPAN and monitoring port on the switch
Can it on two different switch but connected ??
>From: "Circusnuts" <[EMAIL PROTECTED]>
>Reply-To: "Circusnuts" <[EMAIL PROTECTED]>
>To: "Keyur Lavingia" <[EMAIL PROTECTED]>, "David spalding"
><[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
>Subject: Re: Questtion on SPAN and monitoring port on the switch
>Date: Wed, 4 Apr 2001 15:08:41 -0100
>
><< set span <src_port> <dest_port> >>
>
>OR
>
># port monitor <interface or VLAN#> (for IOS based switches). The is
>perfect for a device that uses promiscuous NIC's (IDS, Network SwitchProbe,
>Sniffers).
>
>http://www.cisco.com/warp/public/473/41.html
>
>Good Luck with your search
>Phil
>
>----- Original Message -----
>From: "Keyur Lavingia" <[EMAIL PROTECTED]>
>To: "David spalding" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
>Sent: Wednesday, April 04, 2001 4:51 PM
>Subject: RE: Questtion on SPAN and monitoring port on the switch
>
>
> > The Switch Fabric is designed to send packets across ports based on the
>MAC
> > addresses it learnt from the hosts connected to the ports. It does not
>send
> > a packet from one port to all the ports like a HUB does. In this case,
>if
>u
> > want to monitor one particular port on the switch, or for that matter,
>any
> > number of ports on the switch, u have to connect ur RMON probe or ur
>sniffer
> > or in this case ur analyser on one of the ports and then span the ports
>that
> > u want to monitor to the port that the RMON/Sniffer/Analyser is
>connected
> > to. What this tells the switch to do it that, it will start sending a
>copy
> > of the packets it receives on the SPANd port to the port on which the
> > RMON/Sniffer/Analyser is connected. This will let ur analyser see all
>the
> > packets that are received on those SPANd ports. The basic command to
> > configure a span port on a set based IOS is
> >
> > set span <src_port> <dest_port>
> >
> > Let me know if this helps ...
> >
> >
> > Keyur.
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > David spalding
> > Sent: Wednesday, April 04, 2001 3:09 AM
> > To: [EMAIL PROTECTED]
> > Subject: Questtion on SPAN and monitoring port on the switch
> >
> >
> > Hi.. I don't understand the instruction from our cisco consultant. Can
>you
> > pls guide me.. What I should I do in more detail about how to run a
>SPAN
>or
> > monitor port on the switch to copy the data to the monitoring port ?
>See
> > below e-mail for more full detail
> >
> > QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ
> > David,
> > I don't mean install the netmon software on the server as this is likely
>to
> > kill the box.
> >
> > Load it on a spare PC or laptop if you have one - load PC anywhere or
> > something similar so we could gain access to it. - it should have
>10/100mb
> > card.
> >
> > Once this is set-up we you can put the analyser in line with the server
>-
>or
> > we run a SPAN or monitor port on the switch to copy the data to the
> > monitoring port so the netmon analyser can see all the traffic.
> >
> > Does this make sense ? this way you have an independent analyser - you
>won't
> > need to bother audit for that ....do you ?
> >
> >
> >
> >
>_________________________________________________________________________
> > Get Your Private, Free E-mail from MSN Hotmail at
>http://www.hotmail.com.
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