Block Cascated Hub

Unanswered Question
Feb 25th, 2008

Dear All,

I have a 3750-48TS at Access layer, I'd like to prevent that someone try to connect on the fastethernet ports some Hubs,How can I do that?

I have just configured the ethernet ports with the commands "switchport mode access" to prevent trunk on them.

Could you help me pls.

BR.

Igor.

I have this problem too.
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Jon Marshall Mon, 02/25/2008 - 01:01

Hi Igor

We use port-security on our switches to stop people connecting hubs to the switch ports. We allow 1 mac-address only on each port which means that if a user connects in a hub to use multiple machines the port will shutdown.

Have a read of port security on the 3750 and please come back with any further questions

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_40_se/configuration/guide/swtrafc.html#wp1038501

Jon

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