On Mar 25, 2007, at 9:27 AM, Igor Sobrado wrote:

quoted text
> Hi Lachlan.
>
> What you are looking for is usually called "router on a stick".
> Perhaps you can use some binat rules to specify bidirectional
> mappings between external netblocks and the internal aliases.
>
> Don't know why you are doing it, however.  The only time I made
> a "router on a stick" was on my Cisco 2501.  Honestly, this set up
> is an ugly workaround.

It works fine if you're using secure VLANs.  But if you have the  
money for a VLAN-capable switch, you might as well use dedicated  
interfaces.  But it *can* be done easily and securely.

--
Jason Dixon
DixonGroup Consulting
http://www.dixongroup.net