external L2 ethernet connections

Adam Davenport adam at choopa.com
Fri Feb 20 08:59:00 CST 2009


If you're using a Cisco device on your side, you'll likely want to 
disable MOP as well:

http://www.ciscotaccc.com/kaidara-advisor/lanswitching/showcase?case=K20523308

Adam Davenport / adam at choopa.com
www.choopa.com / 1.866.2.CHOOPA



Joe Maimon wrote:
> Does anyone have a best practice list of things to disable/filter/turn 
> off on ethernet ports l2 connected to other AS's
>
> cdp
> stp
> switchport negotiate
> vtp
> if trunking, limit vlans, no vlan1
>
> So on so forth.
>
> Switches do so many darn things all by themselves, as any packet 
> capture shows.
>
> Thanks,
>
> Joe
>
>




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