12-11-2005 09:27 AM - edited 03-03-2019 11:12 AM
I have got Cisco switch 2900, which it have got 24 PCs (24 ports) connected to this switch.
I want to do a test , how can I sniff all packets (not only intended for me) on my LAN (for all 24 PCs) ?
12-11-2005 06:01 PM
Only way to do this is if all PCs are on the same VLAN
If that is the case, then you can span the vlan to a port and plug your sniffer in that port.
12-11-2005 07:54 PM
((then you can span the vlan to a port and plug your sniffer in that port.))
Could you please ,explain what is the concept behind that?
12-11-2005 11:23 PM
This should explain SPAN /Port mirroring
http://www.cisco.com/en/US/products/hw/switches/ps5213/products_configuration_guide_chapter09186a00801ce027.html. The Sniffer can be ethereal software.
HTH
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