RE: IE lab12 task 1.14

From: samccie2004@yahoo.co.uk
Date: Thu Jun 17 2004 - 16:38:07 GMT-3


Of course ! I got it all wrong !

I totally miss understood the use of this command, in fact what I am doing
is the opposite of the requirement.

Thanks

Sam
  -----Original Message-----
  From: Tom Rogers [mailto:cccie71@yahoo.com]
  Sent: 17 June 2004 20:29
  To: samccie2004@yahoo.co.uk; studygroup
  Subject: RE: IE lab12 task 1.14

  Sam,
  According to your config "switchport port-security mac-address
0030.1369.87a0
  " if that is the router mac, traffic will be allowed into the switch from
that mac. If You have several PC's behind this router, all will get access.

  To answer your question ,If the switch sees the mac address of the router
IT WILL NOT BLOCK IT which in turn will allow PC traffic to through also.

  Tom
  samccie2004@yahoo.co.uk wrote:
    Hi Tom

    Thanks for the reply, but this is where I am getting confused. If the
switch
    sees the mac address of the router and blocks it then no traffic from
    router and therefore from PC will be forwarded. Am I missing something
    really simple here and obvious ?

    Cheers

    Sam

    -----Original Message-----
    From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
    Tom Rogers
    Sent: 17 June 2004 09:02
    To: samccie2004@yahoo.co.uk; studygroup
    Subject: Re: IE lab12 task 1.14

    Sam,
    I dont think so.....
    This port will allow traffic from that mac. And I beleive that is your
    router's mac, right ?
    If yes.... guess what.... the switch does not see PC's (PCs connected to
    router) mac's
    And you know why. So all the traffic that the switch is going to see is
from
    the same mac for all the PC's.

    So tell me where re you restricting the PCs?

    Tom

    samccie2004@yahoo.co.uk wrote:
    Hi all

    Would this be a valid solution. I understand the proposed solution and
how
    IP traffic can slip thru the net.
    The below solution would simply block the port ?

    Switch#sh run int fa0/7
    Building configuration...

    Current configuration : 181 bytes
    !
    interface FastEthernet0/7
    switchport mode access
    switchport port-security
    switchport port-security violation restrict
    switchport port-security mac-address 0030.1369.87a0
    end

    TIA

    Sam

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