As far as I am aware both SDLcomm and ETI don't have their drivers in source
form so you don't get to run them with 1.3. Gated+BGP4 won't run on anything
before ANK's routing table changes (well not _usefully_). You'll also want
a lot of memory (prob 16Mb+) and some strong painkillers to set BGP4 up.
Personally I would still (until 1.4 at least) go and plug a Cisco into
the network for that job rather than a Linux box.
Alan