...but the first is somewhat frivolous and unimportant: it's an
AlphaStation 200 4/100 upgraded to a 233 MHz configuration. But from what
I can gather, the CPU involved is rated at 275 MHz. Just wondering if this
can be run at 266 with an appropriate crystal swap or if other components
limit the design to 233 MHz. No biggie.
The genuinely important question is more involved. A cable modem was
recently installed here, and I'd like for several systems to have access to
it. The modem itself is a straightforward Ethernet device, but designed to
be connected to a single computer with a static IP address provided by the
ISP. Some ISDN routers offer Network Address Translation for sharing a
single IP address among a small network...or I've heard a bit about "IP
Masquerading" on Linux systems to achieve a similar effect. The latter
requires two network cards, the system reconstituting packets from
different IP addresses on the local network attached to one card to
different port numbers of a single IP address on the other card attached to
the outside world. So it's a question in two parts:
1) Does Digital UNIX 3.2 itself, or is there a package available for it,
supporting anything like NAT or IP Masquerading? A good bit of searching
has turned up no leads so far.
2) If such a capability is available, what about adding the second network?
Both a PCI and ISA slot are free...can I slap any old Ethernet card in
there, or will it choke if it's lacking some kind of magical, DEC-blessed
firmware? (And if the latter, where can one acquire such a card
affordably?)
Any info or pointers would be much appreciated. Thanks!
-- Phil
Received on Mon Aug 11 1997 - 19:47:45 NZST