Christ Schlacta wrote:

>On another note:  Tom, you might considder adding a recommendation to
>the howtos and guides that even on a multiple interface router, that it
>be configured to use bridges.  I've found that swapping interfaces,
>enabling or disabling vlans, and other simple updates are greatly
>simplified by using bridges.

How so ?

Bridges introduce a new layer of complication, and importantly, 
prevent some configurations - specifically you CANNOT filter outbound 
traffic originating on the firewall machine and exiting via a bridge 
interface. Most of my systems have a default policy of FW->ALL REJECT 
and stopping outbound traffic filtering would be a significant 
backwards step.

You should take a look at udev persistent rules - specifically 
/dev/udev/rules.d/xx-persistent-net-rules IIRC on Debian derived 
systems. This allows you to name interfaces and greatly improves 
things - for example you can name your outside and inside devices 
ethext and ethint which makes keeping track of what's what a lot 
easier. I gues this won't help for VLANs though.
The biggest help is that should you have to change a NIC, or migrate 
the system to different hardware, you can just change the MAC 
addresses in the persistent rules and carry on with the same config - 
none of this "oh bother*, eth0 is now eth3" stuff !

* Insert own choice of expletive here :)

-- 
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

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