Dude, you can have as many secondary ip addresses you want in an interface.
>From: "Albert Lu"
>Reply-To:
>To: "Bob S"
>CC: "GroupStudy"
>Subject: RE: How can I run 2 subnets within 1 network? [7:7967]
>Date: Tue, 12 Jun 2001 01:21:31 +1000
>
>What do you mean with primary and seconday ip address for the interface?
>Aren't you only limited to 1? Could I subinterface the WAN link to the
>other
>router for each subnet?
>
>The net effect would be the whole network running with 2 subnets, separate
>from each other.
>
>Albert
>
> > -----Original Message-----
> > From: Bob S [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, 12 June 2001 12:59
> > To: Albert lu; [EMAIL PROTECTED]
> > Subject: Re: How can I run 2 subnets within 1 network? [7:7967]
> >
> >
> > I think you are asking if you can have two different subnets in one
> > interface? the answer is yes, one primary ip address for one
> > subnet and a
> > secondary ip address for the the second subnet. I beleive you
> > can then use
> > extended ACL to prevent the other network into talking to another
> > network.
> > Another thing you can do is to subinterface the router's fastethernet
> > interface and trunk to the switch and again use extended ACL to
> > prevent the
> > intervlan communication.
> >
> >
> > >From: "Albert Lu"
> > >Reply-To: "Albert Lu"
> > >To: [EMAIL PROTECTED]
> > >Subject: How can I run 2 subnets within 1 network? [7:7967]
> > >Date: Mon, 11 Jun 2001 09:39:39 -0400
> > >
> > >Hello group,
> > >
> > >I'm trying to get ideas for a network design.
> > >
> > >Essentially, there would be two networks, lets say 172.0.0.0 network
>and
> > >the
> > >192.0.0.0 network. What I'm looking to accomplish is to have about 8
> > >routers
> > >interconnected together, and both networks would run through
> > them. However,
> > >each network is not allowed to learn about the other. That is, if I'm
>in
> > >the
> > >172 network, I cannot ping hosts in the 192 network.
> > >
> > >Each router would have a switch, that would separate the two
> > networks into
> > >two vlans, so hosts in one vlan cannot reach the other. It gets
> > complicated
> > >when the traffic needs to be routed to another router.
> > >
> > >I hope I made sense, if I didn't, then please feel free to email me.
> > >
> > >Regards,
> > >
> > >Albert
> > _________________________________________________________________
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>
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