interface FastEthernet0/13
port monitor FastEthernet0/22
See above. I just tried a little experiment and it seems to work on a Catalyst 2924XL.
With a PC plugged into FA0/13 and a Solaris server plugged into FA0/22 I was able to
see
all traffic to the Solaris box from a software sniffer on the PC and upload/download
files to third server at the same time. A "sh int"on the switch did not indicate any
errors.
Maybe this isn't what you meant (?) and maybe it depends on the switch software version
(I recognize Catalyst 5xxx and 6xxx series switches don't run the same software).
-Jonathan
Priscilla Oppenheimer wrote:
> The reason I ask is that my client is developing a network management box
> that will connect to a SPAN port and collect traffic as well as
> occasionally send SNMP queries and other UDP packets.
>
> He realizes that if the user were collecting data from many ports there
> would be performance issues. However, he wants to know, in the absence of
> performance problems, will his device be able to send some queries? Is
> sending disabled on the SPAN port? The other answers (from people who have
> tried it) make me think the answer is no, sending is not disabled.
>
> Priscilla
>
> At 04:46 PM 12/29/00, [EMAIL PROTECTED] wrote:
>
> >Cisco employees have confirmed for me that devices connected to span ports
> >are unable to act as normal hosts by design.
> >
> >
> >
> >
> >
> >
> >Priscilla Oppenheimer <[EMAIL PROTECTED]>@groupstudy.com on 12/29/2000
> >03:27:52 PM
> >
> >Please respond to Priscilla Oppenheimer <[EMAIL PROTECTED]>
> >
> >Sent by: [EMAIL PROTECTED]
> >
> >To: [EMAIL PROTECTED]
> >cc: (bcc: Kevin Cullimore)
> >Subject: can SPAN port transmit?
> >
> >
> >Hi folks,
> >
> >If I connect a Sniffer-like device to the SPAN port of a switch, will the
> >Sniffer-like device be able to transmit data?
> >
> >My guess is no. From my reading on Cisco's SwitchProbe external hardware
> >probes, it appears that the SwitchProbe needs an additional port to send
> >data to a network management system. One port connects to a SPAN port on
> >the switch and the other port connects to a normal port and is configured
> >in "management mode."
> >
> >But, does anyone have experience with trying to send from a device
> >connected to a SPAN port?
> >
> >Thanks
> >
> >Priscilla
>
> ________________________
>
> Priscilla Oppenheimer
> http://www.priscilla.com
>
> _________________________________
> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
