From: Stefan Grey (examplebrain@hotmail.com)
Date: Fri Feb 16 2007 - 13:29:19 ART
Do you thing so?? What are GARP packets?? What are the used for. Hear for
the first time about this protoocol. As far as I have googled it is relative
to multicast. I do not have any multicast configured.
Thoughts?
>From: "Jian Gu" <guxiaojian@gmail.com>
>Reply-To: "Jian Gu" <guxiaojian@gmail.com>
>To: "Stefan Grey" <examplebrain@hotmail.com>
>CC: ccielab@groupstudy.com
>Subject: Re: Port-security on the switch interesting question..
>Date: Fri, 16 Feb 2007 08:13:01 -0800
>
>I guess when you change MAC address of router, the router will send out
>GARP
>packets.
>
>On 2/16/07, Stefan Grey <examplebrain@hotmail.com> wrote:
> >
> > Well guys when I configured this on the switch I have mentioned the
> > strange
> > thing. Maybe you could test this... or tell why the following heppens??
> >
> > PC--- Switchfa0/1 - fa0/0-router.
> >
> > on the switch fa0/1 interface is configured:
> > switchport mode acc
> > sw port-security
> > sw port-security maximum-mac 1.
> > sw port-security violate shutdown
> >
> > Than although I didn't do anything the mac address entry for fa0/0
> > interface
> > of the router appears in the CAM table of the router. I change the Mac
>on
> > the interface of the router... the interface of the switch goes in the
> > shutdown mode. I just wonder how the switch makes the entries in its CAM
> > table?? NO packets are sent through the network. Well I thought maybe
>its
> > due CDP frames.. but I disabled it and the behaviour is still the same.
> > How
> > does the switch make an entry for the router in its CAM table?? (Are
>there
> > any frames inbetween excep CDP about which I don't know??)
> >
> > Any thoughts??
> >
> > Thanks.
> >
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