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тАО02-09-2009 10:05 AM
тАО02-09-2009 10:05 AM
preventing installation of other switches
thanks
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тАО02-09-2009 10:24 AM
тАО02-09-2009 10:24 AM
Re: preventing installation of other switches
sw1(config)# port-security 1-10 learn-mode static address-limit 1 action send-disable
port-securtiy feaure for securtiy
each port connect only one mac address (if you want between 1-32 mac address )
above commad for only one mac address connection each port
*learn mode automaticaly write mac address on port there for check all port connect must be only compony pc
*address limit 1 only one address connect on port
*action send disable ;if connect prular machine or unauthorize mac on port port is go disable state
don't for write up link port this commad
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тАО02-09-2009 10:27 AM
тАО02-09-2009 10:27 AM
Re: preventing installation of other switches
I was thinking to disable the auto-mdix, but the cheap linksys switches support auto-mdix so it wouldn't matter.
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тАО02-09-2009 10:36 AM
тАО02-09-2009 10:36 AM
Re: preventing installation of other switches
only change status
sw1(eth-1)# mdix-mode
mdi Configures port for connecting a PC with a crossover cable
mdix Configures port for connecting a PC with a straight-through cable
automdix Configures port for automatic detection of the cable
sw1(eth-1)# no mdix-mode
Invalid input: mdix-mode
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тАО02-09-2009 10:41 AM
тАО02-09-2009 10:41 AM
Re: preventing installation of other switches
auto-mdix Enable/disable auto-mdix mode for all ports
The Procurve 2810 switch can be done per port:
(eth-5)# mdix-mode
mdi - Configures port for connecting a PC with a crossover cable
mdix - Configures port for connecting a PC with a straight-through cable
automdix - Configures port for automatic detection of the cable
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тАО02-09-2009 10:50 AM
тАО02-09-2009 10:50 AM
Re: preventing installation of other switches
but today all producer support mdix protocol
for example
http://www.directron.com/sd208.html
Linksys 8-Port 10/100 Switch SD208, up to 200Mbps (Full-duplex Mode), w/ Auto MDI/MDI-X Crossover Detection. ds
as for me not resolution disable mdix
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тАО02-09-2009 10:57 AM
тАО02-09-2009 10:57 AM
Re: preventing installation of other switches
cheap switch seting own mdix status and after all connect procurve switch
on 2524 disable mdix to say all port go trun only mdix mode
configures port for connecting a PC with a straight-through cable
no working cross over cable connection on port.
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тАО02-09-2009 10:59 AM
тАО02-09-2009 10:59 AM
Re: preventing installation of other switches
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тАО02-09-2009 11:03 AM
тАО02-09-2009 11:03 AM
Re: preventing installation of other switches
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тАО02-09-2009 11:57 PM
тАО02-09-2009 11:57 PM
Re: preventing installation of other switches
You can use port security to limit the alowed mac-adresses active at a port at a given time, but allow other mac-adresses to be learned after a given timeout.
so it's no problem when computers are exchanged (as long this takes longer than the timeout let's say 2-5 min.).
but blocks multiple mac-adresses at the same time is case of a hub or switch is connected.