I'm pretty sure you can't have two identical MAC's on the same switch and have them 
work independently?
unless its a layer 3 switch...

A little discrepency I noticed with Telus, is using their online registration, you can 
register one mac.
use your dhcp client daemon to request an IP.
de register that MAC on Telus Online registration.

register another mac...
rinse, repeat...
I'm not sure if it still works, but IIRC it did.



On Fri, 16 Aug 2002 10:23:00 -0600
"Kevin Anderson" <List [EMAIL PROTECTED]> wrote:

> I thought of this, it's an ifconfig parameter, but if he needs to register
> the MAC before he can recieve a DHCP, then he'll probably only be able to
> get one at a time.
> 
> I don't know the answer to this, but would it work to make ETH0 and ETH1 the
> same physical device?  Also, could you run 2 MACs simultaneously on a NIC?
> Two IPs, sure, but 2 MACs?  That I'm not so sure about.
> 
> Kev.
> 
> 
> ----- Original Message -----
> From: "mark" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, August 15, 2002 10:22 PM
> Subject: Re: (clug-talk) IP aliasing
> 
> 
> > On Thu, 2002-08-15 at 15:50, Trevor Lauder wrote:
> > > You can't do IP aliasing on the Telus ADSL network because of what you
> > > say, you reserve your IPs by MAC address and you can't enter in the same
> > > MAC twice.  Nor can you hard-code your IP address(s), even static is
> done
> > > through DHCP.... someone should smack the dodo at Telus who came up with
> > > that system.  Anyways, they don't support it and it will not be possible
> > > until they modify their OCA frontend/database to allow that kind of
> thing,
> > > apparently they are working on it but I wouldn't hold my breath.  I
> > > believe you can do it with route2 and 2+ external NICs, although I'm
> still
> > > working on getting it working (I had CADVision here before and used IP
> > > aliases with 1 NIC, didn't need route2 for that as the Linux firewall
> only
> > > had 1 default gateway, with 2 external NICs you get 2 default gateways).
> > > I know this isn't very positive feedback but this is the way Telus
> works.
> > > Later,
> > >
> >
> > It is possible to change the mac address of your nic to obtain multiple
> > ips through dhcp. A friend of mine has a script to do just that. In fact
> > he works for telus in DHCP support and has help customers with it. I
> > will attempt to get the script from him and forward it to the list.
> >
> > regards,
> >
> > Mark
> >
> >
> >
> 

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