Subject: Re: SE/30 as a network router?
To: None <>
From: Nuno Teixeira <>
List: port-mac68k
Date: 02/08/2007 23:44:58

Today I've tried to connect both cards on SE/30 but it doesn't work.  
MacOS 7.5 reports an error about TCP and NetBSD only detects Asante  
and not Farallon.


Anyone knows why? I've read about a guy with 2 devices (vga card and  
accelarator) attached to an Asante card.


	Nuno Teixeira

On 2007/02/08, at 01:34, wrote:

> It's entirely possible to set up NAT with only one NIC, but for it to
> be truely secure you'd need "personal" firewalls on each machine to
> block traffic coming in from the internet (no thanks to ARP spoofing
> and whatnot). If you use a switch instead of a dumb router the risk
> will be minimal as well.
> NetBSD has pf, which is amazingly simple to set up for this task. I've
> only done it with two or more NICs, but I'm quite sure it would take
> minimal changes to make it work with only one.
> I say go for it :)
> If I had another NIC I'd be using my Centris 650 as a router. More
> than enough computing horsepower for simple networks, although if you
> have a huge network the ARP tables and DHCP (if you use it) tables
> will max out the RAM pretty quick. Each open connection eats up memory
> moreso than CPU power. I used a 486-66DX2 as a router for a long time
> without any preformance difference vs. what I use now. But this was
> before bittorrent came along...
> Best of luck!
> -
> Michael Griffith
> On 2/7/07, Nuno Teixeira <> wrote:
>> Hello,
>> First I'm sorry because I don't express myself correctly. I was
>> thinking wrong about what I really want to do.
>> I will be more precise now:
>> First I want to give a job to do to my SE/30 and I think that a SE/30
>> as a gateway or NAT is a good start to my home network. I have
>> already Apache ready for future use too.
>> I think that I can connect 2 NICs on my SE/30 ataching a Farallon in
>> a Asante passthrough slot. Maybe I get no space inside SE/30 but then
>> I will remove the external case.
>> I will test in NetBSD to see if both are recognised correctly and
>> then I will configure it as a NAT server.
>> Could you give me your oppinion about this?
>> Yours,
>>        Nuno Teixeira
>> On 2007/02/06, at 04:14, der Mouse wrote:
>> >> I'd like to know if it is possible to make a SE/30 work as a  
>> internet
>> >> router. I've read about NAT but it says that we need two NICs  
>> and SE/
>> >> 30 only have one.
>> >
>> > This is mostly true, I'm afraid.  (There are some exceptions -  
>> such as
>> > the case where you have an 802.1q-capable switch and NIC, where you
>> > can
>> > set it up as a trunk line and route between vlan interfaces -  
>> but if
>> > you know enough to set that up and make it work right you wouldn't
>> > need
>> > to ask this.)
>> >
>> > It *is* possible to have a single-interface machine route between
>> > different subnets running in the same broadcast domain ("on the  
>> same
>> > cable", except that these days Ethernet isn't a bus technology any
>> > longer, so the term is inaccurate).  This still inflicts most of  
>> the
>> > problems of not routing, so it's of questionable value.  (It may  
>> be a
>> > right answer for you, depending on why you want to route.)
>> >
>> >> I have a cable connection and I have a switch/hub.  Currently I  
>> have
>> >> a PM G4 (MacOSX) sharing my connection with only one NIC so I  
>> think
>> >> it is possible to do it on a SE/30, I'm I right?
>> >
>> > I'm not clear what you're trying to end up with - that is, what
>> > problem
>> > you think turning your SE/30 into a router would solve.  Most of  
>> the
>> > scenarios I can imagine end up with your box being not just a  
>> router
>> > but also a NAT system (or an application-level proxy, in which case
>> > it's not really a router in the usual sense of the term).
>> >
>> > I can't see any reason, except possibly performance, why your SE/30
>> > would be unable to handle what your G4 can...but that's speaking
>> > conceptually; whether the software can do it out of the box is a
>> > completely different question.
>> >
>> > /~\ The ASCII                         der Mouse
>> > \ / Ribbon Campaign
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>> Nuno Teixeira

Nuno Teixeira