(off topic)Internet Connection alternatives

NAT is software. Although I suppose it could be implemented
in firmware. I can't stress enough how cheap it is to take
an old 486, load FreeBSD, configure it with 2 nics, enable
ipfw and nat. After you get it going you'll never have to
touch the box again if you don't want to. NAT is ultra
secure. Just try and ping 10.0.0.57. (my machine)
You can ping my freebsd box (real ip address) but nat makes
all my computers virtually invisible to the internet.

"Wendy Bowen (Pursche)" wrote:
>
> I visited the site and it was very informative. I have a question
> though............is NAT (Network Address Translation) software? Or is it
> something that you get with your router or LAN modem? Or is it something
> that your ISP has to provide us? It sounds like NAT would be a good
> immediate solution to our expense of separate modems, lines, and accounts.
> I realize it will not give us better speed, but it's a quick, simple
> solution for now.
>
> Wendy Bowen (Pursche)
> Network Administrator
> Schmald Tool & Die, Inc.
> (810) 743-1600 ext.323
> wpursche@...
>
> ----- Original Message -----
> From: Paul Siebers <paul.siebers@...>
> To: <vantage@yahoogroups.com>
> Sent: Monday, January 29, 2001 1:28 PM
> Subject: RE: [Vantage] (off topic)Internet Connection alternatives
>
> > Wendy,
> >
> > How many users are you talking about? And please tell me that your only
> > server is some kind of a monster with multiple processors and NIC's...
> >
> > You might want to take a look at 3COM's site:
> > http://www.3com.com/smallbusiness/solutions/connect_internet_over.html
> > <http://www.3com.com/smallbusiness/solutions/connect_internet_over.html>
> > They have a pretty good overview of hardware and connectivity solutions
> >
> > HTH,
> >
> > Paul
> >
> > -----Original Message-----
> > From: Wendy Bowen (Pursche) [mailto:wpursche@...]
> > Sent: Monday, January 29, 2001 1:09 PM
> > To: Vantage Yahoogroups list
> > Subject: [Vantage] (off topic)Internet Connection alternatives
> >
> >
> > I am researching other alternatives to the standard dial-up connection.
> > Does anyone know a good web site that will explain DSL, T1, wireless,
> cable
> > modems, and ISDN for networks in plain English? I would like to know the
> > exact setup of each of these. I am limited right now as to what we can
> get.
> > ISDN and cable modems are not available in our area. The only company
> that
> > I know of in my area for wireless is very difficult to get a hold of
> (might
> > not say much for their service). So, I don't think wireless will be an
> > option either. So, we are narrowed down to DSL and T1. We only have 1
> > server that runs everything on our network, so I'd rather not utilize
> > anything else from this server (if possible).
> >
> > Any ideas?
> >
> > Wendy Bowen (Pursche)
> > Network Administrator
> > Schmald Tool & Die, Inc.
> > (810) 743-1600 ext.323
> > wpursche@...
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
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At 03:01 PM 1/30/2001 , you wrote:
>........is NAT (Network Address Translation) software? Or is it
>something that you get with your router or LAN modem? Or is it something

Yes, and Yes. It's a software based protocol; probably originated on unix
systems, and is included with almost all of them today. You can grab an
old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
Router / NAT / Firewall box.

Nearly all IP routers have it too; and surprise... most of them are also
running some striped down unix in their firmware.

I haven't messed with many cable and DSL "modems" yet, but I think most
require a separate router. The el'cheapo SMC Barricade I blabbed about
last week will work for many simple situations.

-Wayne
I'm curious, why would 2 NICs be needed for the box?

Wendy Bowen (Pursche)
Network Administrator
Schmald Tool & Die, Inc.
(810) 743-1600 ext.323
wpursche@...


----- Original Message -----
From: Wayne Cox <wmc@...>
To: <vantage@yahoogroups.com>
Sent: Tuesday, January 30, 2001 4:03 PM
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


> At 03:01 PM 1/30/2001 , you wrote:
> >........is NAT (Network Address Translation) software? Or is it
> >something that you get with your router or LAN modem? Or is it something
>
> Yes, and Yes. It's a software based protocol; probably originated on
unix
> systems, and is included with almost all of them today. You can grab an
> old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
> Router / NAT / Firewall box.
>
> Nearly all IP routers have it too; and surprise... most of them are also
> running some striped down unix in their firmware.
>
> I haven't messed with many cable and DSL "modems" yet, but I think most
> require a separate router. The el'cheapo SMC Barricade I blabbed about
> last week will work for many simple situations.
>
> -Wayne
>
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>
That was if you were going to use DSL or T1. For dialup
you only need one.

"Wendy Bowen (Pursche)" wrote:
>
> I'm curious, why would 2 NICs be needed for the box?
>
> Wendy Bowen (Pursche)
> Network Administrator
> Schmald Tool & Die, Inc.
> (810) 743-1600 ext.323
> wpursche@...
>
> ----- Original Message -----
> From: Wayne Cox <wmc@...>
> To: <vantage@yahoogroups.com>
> Sent: Tuesday, January 30, 2001 4:03 PM
> Subject: Re: [Vantage] (off topic)Internet Connection alternatives
>
> > At 03:01 PM 1/30/2001 , you wrote:
> > >........is NAT (Network Address Translation) software? Or is it
> > >something that you get with your router or LAN modem? Or is it something
> >
> > Yes, and Yes. It's a software based protocol; probably originated on
> unix
> > systems, and is included with almost all of them today. You can grab an
> > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
> > Router / NAT / Firewall box.
> >
> > Nearly all IP routers have it too; and surprise... most of them are also
> > running some striped down unix in their firmware.
> >
> > I haven't messed with many cable and DSL "modems" yet, but I think most
> > require a separate router. The el'cheapo SMC Barricade I blabbed about
> > last week will work for many simple situations.
> >
> > -Wayne
> >
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
> >
> >
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
> I'm curious, why would 2 NICs be needed for the box?
For cable and DSL and maybe others, the modem connects to the PC via a
network cable. So you need one NIC for that and another to connect the PC to
the rest of the network.

Brian Boyes,
Systems Administrator,
Precision Resource Canada Ltd.
<http://www.precisionresource.com>
<mailto:brianb@...>
I'm confused again..............for dial-up, the workstations go to the hub,
then to the NIC in the NAT computer, then to the modem in the NAT computer,
then dials-up, then goes out to the Internet through the phone line from the
NAT computer modem, right? For DSL & T1, the workstations go to the hub,
then to the NIC in the NAT/Firewall, then through another NIC out to the
router, then through a DSL/T1 connection out to the Internet, right? So, in
that scenario one NIC receives/sends info. from the workstations to the
other NIC, and the other NIC sends/receives info. from the Internet to the
other NIC, right?

Really, I'm not hopeless, it's just a new thing to me!

~Wendy

----- Original Message -----
From: Joe Konecny <jkonecn@...>
To: <vantage@yahoogroups.com>
Sent: Thursday, February 01, 2001 3:34 PM
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


> That was if you were going to use DSL or T1. For dialup
> you only need one.
>
> "Wendy Bowen (Pursche)" wrote:
> >
> > I'm curious, why would 2 NICs be needed for the box?
> >
> > Wendy Bowen (Pursche)
> > Network Administrator
> > Schmald Tool & Die, Inc.
> > (810) 743-1600 ext.323
> > wpursche@...
> >
> > ----- Original Message -----
> > From: Wayne Cox <wmc@...>
> > To: <vantage@yahoogroups.com>
> > Sent: Tuesday, January 30, 2001 4:03 PM
> > Subject: Re: [Vantage] (off topic)Internet Connection alternatives
> >
> > > At 03:01 PM 1/30/2001 , you wrote:
> > > >........is NAT (Network Address Translation) software? Or is it
> > > >something that you get with your router or LAN modem? Or is it
something
> > >
> > > Yes, and Yes. It's a software based protocol; probably originated on
> > unix
> > > systems, and is included with almost all of them today. You can grab
an
> > > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
> > > Router / NAT / Firewall box.
> > >
> > > Nearly all IP routers have it too; and surprise... most of them are
also
> > > running some striped down unix in their firmware.
> > >
> > > I haven't messed with many cable and DSL "modems" yet, but I think
most
> > > require a separate router. The el'cheapo SMC Barricade I blabbed
about
> > > last week will work for many simple situations.
> > >
> > > -Wayne
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > vantage-unsubscribe@egroups.com
> > >
> > >
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>
Wendy -

It's a NIC NAT Firewall,
give the dog a bone.

I'll be in the office today - call me, we'll discuss security
till you're bored!

Calvin

----- Original Message -----
From: Wendy Bowen (Pursche) <wpursche@...>
To: <vantage@yahoogroups.com>
Sent: Friday, February 02, 2001 7:09 AM
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


> I'm confused again..............for dial-up, the workstations go to the
hub,
> then to the NIC in the NAT computer, then to the modem in the NAT
computer,
> then dials-up, then goes out to the Internet through the phone line from
the
> NAT computer modem, right? For DSL & T1, the workstations go to the hub,
> then to the NIC in the NAT/Firewall, then through another NIC out to the
> router, then through a DSL/T1 connection out to the Internet, right? So,
in
> that scenario one NIC receives/sends info. from the workstations to the
> other NIC, and the other NIC sends/receives info. from the Internet to the
> other NIC, right?
>
> Really, I'm not hopeless, it's just a new thing to me!
>
> ~Wendy
>
> ----- Original Message -----
> From: Joe Konecny <jkonecn@...>
> To: <vantage@yahoogroups.com>
> Sent: Thursday, February 01, 2001 3:34 PM
> Subject: Re: [Vantage] (off topic)Internet Connection alternatives
>
>
> > That was if you were going to use DSL or T1. For dialup
> > you only need one.
> >
> > "Wendy Bowen (Pursche)" wrote:
> > >
> > > I'm curious, why would 2 NICs be needed for the box?
> > >
> > > Wendy Bowen (Pursche)
> > > Network Administrator
> > > Schmald Tool & Die, Inc.
> > > (810) 743-1600 ext.323
> > > wpursche@...
> > >
> > > ----- Original Message -----
> > > From: Wayne Cox <wmc@...>
> > > To: <vantage@yahoogroups.com>
> > > Sent: Tuesday, January 30, 2001 4:03 PM
> > > Subject: Re: [Vantage] (off topic)Internet Connection alternatives
> > >
> > > > At 03:01 PM 1/30/2001 , you wrote:
> > > > >........is NAT (Network Address Translation) software? Or is it
> > > > >something that you get with your router or LAN modem? Or is it
> something
> > > >
> > > > Yes, and Yes. It's a software based protocol; probably originated
on
> > > unix
> > > > systems, and is included with almost all of them today. You can
grab
> an
> > > > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your
own
> > > > Router / NAT / Firewall box.
> > > >
> > > > Nearly all IP routers have it too; and surprise... most of them are
> also
> > > > running some striped down unix in their firmware.
> > > >
> > > > I haven't messed with many cable and DSL "modems" yet, but I think
> most
> > > > require a separate router. The el'cheapo SMC Barricade I blabbed
> about
> > > > last week will work for many simple situations.
> > > >
> > > > -Wayne
> > > >
> > > >
> > > >
> > > > To unsubscribe from this group, send an email to:
> > > > vantage-unsubscribe@egroups.com
> > > >
> > > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > vantage-unsubscribe@egroups.com
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
> >
> >
>
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>
Wendy,
one NIC is for your internal interface (LAN) the second NIC is for the
external (internet) interface... you internal interface is generally more
open, i.e. more services, etc... where your external interface you deny all
services except the ones you need and then restrict those on an as need
basis. The 'magic' occurs in IP mappings (translations) between those 2
nics.

side note: I had great success with IP port forwarding thru an ssh2 tunnel
to further secure my citrix connections lastnight... elegantly simple ;)

E. Lee Ingalls III
Commercial Tool & Die Inc.
(p)616.785.8100 (f)616.785.8120
eli3@... <mailto:eli3@...>

Fortitudine Vincimus: "by Endurance we conquer."



-----Original Message-----
From: Wendy Bowen (Pursche) [mailto:wpursche@...]
Sent: Friday, February 02, 2001 8:09 AM
To: vantage@yahoogroups.com
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


I'm confused again..............for dial-up, the workstations go to the hub,
then to the NIC in the NAT computer, then to the modem in the NAT computer,
then dials-up, then goes out to the Internet through the phone line from the
NAT computer modem, right? For DSL & T1, the workstations go to the hub,
then to the NIC in the NAT/Firewall, then through another NIC out to the
router, then through a DSL/T1 connection out to the Internet, right? So, in
that scenario one NIC receives/sends info. from the workstations to the
other NIC, and the other NIC sends/receives info. from the Internet to the
other NIC, right?

Really, I'm not hopeless, it's just a new thing to me!

~Wendy
Calvin,

It's a NIC NAT Firewall,
give the dog a bone.

? eGads ... Is this what you sing to yourself in the shower ?

:-)

-----Original Message-----
From: calvin [mailto:calvin@...]
Sent: Friday, February 02, 2001 7:30 AM
To: vantage@yahoogroups.com
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


Wendy -

It's a NIC NAT Firewall,
give the dog a bone.

I'll be in the office today - call me, we'll discuss security
till you're bored!

Calvin

----- Original Message -----
From: Wendy Bowen (Pursche) <wpursche@...>
To: <vantage@yahoogroups.com>
Sent: Friday, February 02, 2001 7:09 AM
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


> I'm confused again..............for dial-up, the workstations go to the
hub,
> then to the NIC in the NAT computer, then to the modem in the NAT
computer,
> then dials-up, then goes out to the Internet through the phone line from
the
> NAT computer modem, right? For DSL & T1, the workstations go to the hub,
> then to the NIC in the NAT/Firewall, then through another NIC out to the
> router, then through a DSL/T1 connection out to the Internet, right? So,
in
> that scenario one NIC receives/sends info. from the workstations to the
> other NIC, and the other NIC sends/receives info. from the Internet to the
> other NIC, right?
>
> Really, I'm not hopeless, it's just a new thing to me!
>
> ~Wendy
>
> ----- Original Message -----
> From: Joe Konecny <jkonecn@...>
> To: <vantage@yahoogroups.com>
> Sent: Thursday, February 01, 2001 3:34 PM
> Subject: Re: [Vantage] (off topic)Internet Connection alternatives
>
>
> > That was if you were going to use DSL or T1. For dialup
> > you only need one.
> >
> > "Wendy Bowen (Pursche)" wrote:
> > >
> > > I'm curious, why would 2 NICs be needed for the box?
> > >
> > > Wendy Bowen (Pursche)
> > > Network Administrator
> > > Schmald Tool & Die, Inc.
> > > (810) 743-1600 ext.323
> > > wpursche@...
> > >
> > > ----- Original Message -----
> > > From: Wayne Cox <wmc@...>
> > > To: <vantage@yahoogroups.com>
> > > Sent: Tuesday, January 30, 2001 4:03 PM
> > > Subject: Re: [Vantage] (off topic)Internet Connection alternatives
> > >
> > > > At 03:01 PM 1/30/2001 , you wrote:
> > > > >........is NAT (Network Address Translation) software? Or is it
> > > > >something that you get with your router or LAN modem? Or is it
> something
> > > >
> > > > Yes, and Yes. It's a software based protocol; probably originated
on
> > > unix
> > > > systems, and is included with almost all of them today. You can
grab
> an
> > > > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your
own
> > > > Router / NAT / Firewall box.
> > > >
> > > > Nearly all IP routers have it too; and surprise... most of them are
> also
> > > > running some striped down unix in their firmware.
> > > >
> > > > I haven't messed with many cable and DSL "modems" yet, but I think
> most
> > > > require a separate router. The el'cheapo SMC Barricade I blabbed
> about
> > > > last week will work for many simple situations.
> > > >
> > > > -Wayne
> > > >
> > > >
> > > >
> > > > To unsubscribe from this group, send an email to:
> > > > vantage-unsubscribe@egroups.com
> > > >
> > > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > vantage-unsubscribe@egroups.com
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
> >
> >
>
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>



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Maybe I'm confused too, but in my network, the T1 goes to a network hub.
There is only one NIC in my server, which also goes to a network hub. It
seems to me that there are multiple options, depending on things like IP
addressing, and where you locate your firewall. I'm not an expert, but it
may be that two NICs would allow you to have internal IP addressing and a
single published address. I can't see any other reason for it, unless there
are security benefits.

B

-----Original Message-----
From: Wendy Bowen (Pursche) [mailto:wpursche@...]
Sent: Friday, February 02, 2001 6:09 AM
To: vantage@yahoogroups.com
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


I'm confused again..............for dial-up, the workstations go to the hub,
then to the NIC in the NAT computer, then to the modem in the NAT computer,
then dials-up, then goes out to the Internet through the phone line from the
NAT computer modem, right? For DSL & T1, the workstations go to the hub,
then to the NIC in the NAT/Firewall, then through another NIC out to the
router, then through a DSL/T1 connection out to the Internet, right? So, in
that scenario one NIC receives/sends info. from the workstations to the
other NIC, and the other NIC sends/receives info. from the Internet to the
other NIC, right?

Really, I'm not hopeless, it's just a new thing to me!

~Wendy

----- Original Message -----
From: Joe Konecny <jkonecn@...>
To: <vantage@yahoogroups.com>
Sent: Thursday, February 01, 2001 3:34 PM
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


> That was if you were going to use DSL or T1. For dialup
> you only need one.
>
> "Wendy Bowen (Pursche)" wrote:
> >
> > I'm curious, why would 2 NICs be needed for the box?
> >
> > Wendy Bowen (Pursche)
> > Network Administrator
> > Schmald Tool & Die, Inc.
> > (810) 743-1600 ext.323
> > wpursche@...
> >
> > ----- Original Message -----
> > From: Wayne Cox <wmc@...>
> > To: <vantage@yahoogroups.com>
> > Sent: Tuesday, January 30, 2001 4:03 PM
> > Subject: Re: [Vantage] (off topic)Internet Connection alternatives
> >
> > > At 03:01 PM 1/30/2001 , you wrote:
> > > >........is NAT (Network Address Translation) software? Or is it
> > > >something that you get with your router or LAN modem? Or is it
something
> > >
> > > Yes, and Yes. It's a software based protocol; probably originated on
> > unix
> > > systems, and is included with almost all of them today. You can grab
an
> > > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
> > > Router / NAT / Firewall box.
> > >
> > > Nearly all IP routers have it too; and surprise... most of them are
also
> > > running some striped down unix in their firmware.
> > >
> > > I haven't messed with many cable and DSL "modems" yet, but I think
most
> > > require a separate router. The el'cheapo SMC Barricade I blabbed
about
> > > last week will work for many simple situations.
> > >
> > > -Wayne
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > vantage-unsubscribe@egroups.com
> > >
> > >
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>



To unsubscribe from this group, send an email to:
vantage-unsubscribe@egroups.com
That way you don't need a whole block of real addresses ($$$) plus
all the internal ip's can't be seen on the internet.

Brian Davis wrote:
>
> Maybe I'm confused too, but in my network, the T1 goes to a network hub.
> There is only one NIC in my server, which also goes to a network hub. It
> seems to me that there are multiple options, depending on things like IP
> addressing, and where you locate your firewall. I'm not an expert, but it
> may be that two NICs would allow you to have internal IP addressing and a
> single published address. I can't see any other reason for it, unless there
> are security benefits.
>
> B
>
> -----Original Message-----
> From: Wendy Bowen (Pursche) [mailto:wpursche@...]
> Sent: Friday, February 02, 2001 6:09 AM
> To: vantage@yahoogroups.com
> Subject: Re: [Vantage] (off topic)Internet Connection alternatives
>
> I'm confused again..............for dial-up, the workstations go to the hub,
> then to the NIC in the NAT computer, then to the modem in the NAT computer,
> then dials-up, then goes out to the Internet through the phone line from the
> NAT computer modem, right? For DSL & T1, the workstations go to the hub,
> then to the NIC in the NAT/Firewall, then through another NIC out to the
> router, then through a DSL/T1 connection out to the Internet, right? So, in
> that scenario one NIC receives/sends info. from the workstations to the
> other NIC, and the other NIC sends/receives info. from the Internet to the
> other NIC, right?
>
> Really, I'm not hopeless, it's just a new thing to me!
>
> ~Wendy
>
> ----- Original Message -----
> From: Joe Konecny <jkonecn@...>
> To: <vantage@yahoogroups.com>
> Sent: Thursday, February 01, 2001 3:34 PM
> Subject: Re: [Vantage] (off topic)Internet Connection alternatives
>
> > That was if you were going to use DSL or T1. For dialup
> > you only need one.
> >
> > "Wendy Bowen (Pursche)" wrote:
> > >
> > > I'm curious, why would 2 NICs be needed for the box?
> > >
> > > Wendy Bowen (Pursche)
> > > Network Administrator
> > > Schmald Tool & Die, Inc.
> > > (810) 743-1600 ext.323
> > > wpursche@...
> > >
> > > ----- Original Message -----
> > > From: Wayne Cox <wmc@...>
> > > To: <vantage@yahoogroups.com>
> > > Sent: Tuesday, January 30, 2001 4:03 PM
> > > Subject: Re: [Vantage] (off topic)Internet Connection alternatives
> > >
> > > > At 03:01 PM 1/30/2001 , you wrote:
> > > > >........is NAT (Network Address Translation) software? Or is it
> > > > >something that you get with your router or LAN modem? Or is it
> something
> > > >
> > > > Yes, and Yes. It's a software based protocol; probably originated on
> > > unix
> > > > systems, and is included with almost all of them today. You can grab
> an
> > > > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
> > > > Router / NAT / Firewall box.
> > > >
> > > > Nearly all IP routers have it too; and surprise... most of them are
> also
> > > > running some striped down unix in their firmware.
> > > >
> > > > I haven't messed with many cable and DSL "modems" yet, but I think
> most
> > > > require a separate router. The el'cheapo SMC Barricade I blabbed
> about
> > > > last week will work for many simple situations.
> > > >
> > > > -Wayne
> > > >
> > > >
> > > >
> > > > To unsubscribe from this group, send an email to:
> > > > vantage-unsubscribe@egroups.com
> > > >
> > > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > vantage-unsubscribe@egroups.com
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
> >
> >
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
Your outside line usually comes straight into one of the NICs in the firewall PC and it connects to your network out through the second NIC to your hub.

-----Original Message-----
From: Brian Davis [SMTP:bdavis@...]
Sent: Friday, February 02, 2001 08:45 AM
To: 'vantage@yahoogroups.com'
Subject: RE: [Vantage] (off topic)Internet Connection alternatives

Maybe I'm confused too, but in my network, the T1 goes to a network hub.
There is only one NIC in my server, which also goes to a network hub. It
seems to me that there are multiple options, depending on things like IP
addressing, and where you locate your firewall. I'm not an expert, but it
may be that two NICs would allow you to have internal IP addressing and a
single published address. I can't see any other reason for it, unless there
are security benefits.

B

-----Original Message-----
From: Wendy Bowen (Pursche) [mailto:wpursche@...]
Sent: Friday, February 02, 2001 6:09 AM
To: vantage@yahoogroups.com
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


I'm confused again..............for dial-up, the workstations go to the hub,
then to the NIC in the NAT computer, then to the modem in the NAT computer,
then dials-up, then goes out to the Internet through the phone line from the
NAT computer modem, right? For DSL & T1, the workstations go to the hub,
then to the NIC in the NAT/Firewall, then through another NIC out to the
router, then through a DSL/T1 connection out to the Internet, right? So, in
that scenario one NIC receives/sends info. from the workstations to the
other NIC, and the other NIC sends/receives info. from the Internet to the
other NIC, right?

Really, I'm not hopeless, it's just a new thing to me!

~Wendy

----- Original Message -----
From: Joe Konecny <jkonecn@...>
To: <vantage@yahoogroups.com>
Sent: Thursday, February 01, 2001 3:34 PM
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


> That was if you were going to use DSL or T1. For dialup
> you only need one.
>
> "Wendy Bowen (Pursche)" wrote:
> >
> > I'm curious, why would 2 NICs be needed for the box?
> >
> > Wendy Bowen (Pursche)
> > Network Administrator
> > Schmald Tool & Die, Inc.
> > (810) 743-1600 ext.323
> > wpursche@...
> >
> > ----- Original Message -----
> > From: Wayne Cox <wmc@...>
> > To: <vantage@yahoogroups.com>
> > Sent: Tuesday, January 30, 2001 4:03 PM
> > Subject: Re: [Vantage] (off topic)Internet Connection alternatives
> >
> > > At 03:01 PM 1/30/2001 , you wrote:
> > > >........is NAT (Network Address Translation) software? Or is it
> > > >something that you get with your router or LAN modem? Or is it
something
> > >
> > > Yes, and Yes. It's a software based protocol; probably originated on
> > unix
> > > systems, and is included with almost all of them today. You can grab
an
> > > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
> > > Router / NAT / Firewall box.
> > >
> > > Nearly all IP routers have it too; and surprise... most of them are
also
> > > running some striped down unix in their firmware.
> > >
> > > I haven't messed with many cable and DSL "modems" yet, but I think
most
> > > require a separate router. The el'cheapo SMC Barricade I blabbed
about
> > > last week will work for many simple situations.
> > >
> > > -Wayne
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > vantage-unsubscribe@egroups.com
> > >
> > >
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>



To unsubscribe from this group, send an email to:
vantage-unsubscribe@egroups.com




To unsubscribe from this group, send an email to:
vantage-unsubscribe@egroups.com



[Non-text portions of this message have been removed]
Brian,

Your system is wide open to outside hackers if you do not have some type of
firewall between your T1 and a simple network hub. Any published shares are
directly available to anyone who stumbles onto the IP address of any of your
computers. Each machine, if I understand your configuration correctly, is
effectively directly connected to the internet and could easily be
compromised.

H. Dale Puls

-----Original Message-----
From: Brian Davis [mailto:bdavis@...]
Sent: Friday, February 02, 2001 8:45 AM
To: 'vantage@yahoogroups.com'
Subject: RE: [Vantage] (off topic)Internet Connection alternatives


Maybe I'm confused too, but in my network, the T1 goes to a network hub.
There is only one NIC in my server, which also goes to a network hub. It
seems to me that there are multiple options, depending on things like IP
addressing, and where you locate your firewall. I'm not an expert, but it
may be that two NICs would allow you to have internal IP addressing and a
single published address. I can't see any other reason for it, unless there
are security benefits.

B

-----Original Message-----
From: Wendy Bowen (Pursche) [mailto:wpursche@...]
Sent: Friday, February 02, 2001 6:09 AM
To: vantage@yahoogroups.com
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


I'm confused again..............for dial-up, the workstations go to the hub,
then to the NIC in the NAT computer, then to the modem in the NAT computer,
then dials-up, then goes out to the Internet through the phone line from the
NAT computer modem, right? For DSL & T1, the workstations go to the hub,
then to the NIC in the NAT/Firewall, then through another NIC out to the
router, then through a DSL/T1 connection out to the Internet, right? So, in
that scenario one NIC receives/sends info. from the workstations to the
other NIC, and the other NIC sends/receives info. from the Internet to the
other NIC, right?

Really, I'm not hopeless, it's just a new thing to me!

~Wendy

----- Original Message -----
From: Joe Konecny <jkonecn@...>
To: <vantage@yahoogroups.com>
Sent: Thursday, February 01, 2001 3:34 PM
Subject: Re: [Vantage] (off topic)Internet Connection alternatives


> That was if you were going to use DSL or T1. For dialup
> you only need one.
>
> "Wendy Bowen (Pursche)" wrote:
> >
> > I'm curious, why would 2 NICs be needed for the box?
> >
> > Wendy Bowen (Pursche)
> > Network Administrator
> > Schmald Tool & Die, Inc.
> > (810) 743-1600 ext.323
> > wpursche@...
> >
> > ----- Original Message -----
> > From: Wayne Cox <wmc@...>
> > To: <vantage@yahoogroups.com>
> > Sent: Tuesday, January 30, 2001 4:03 PM
> > Subject: Re: [Vantage] (off topic)Internet Connection alternatives
> >
> > > At 03:01 PM 1/30/2001 , you wrote:
> > > >........is NAT (Network Address Translation) software? Or is it
> > > >something that you get with your router or LAN modem? Or is it
something
> > >
> > > Yes, and Yes. It's a software based protocol; probably originated on
> > unix
> > > systems, and is included with almost all of them today. You can grab
an
> > > old PC, throw in two NICs, load up FreeBSD or Linux, and roll your own
> > > Router / NAT / Firewall box.
> > >
> > > Nearly all IP routers have it too; and surprise... most of them are
also
> > > running some striped down unix in their firmware.
> > >
> > > I haven't messed with many cable and DSL "modems" yet, but I think
most
> > > require a separate router. The el'cheapo SMC Barricade I blabbed
about
> > > last week will work for many simple situations.
> > >
> > > -Wayne
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > vantage-unsubscribe@egroups.com
> > >
> > >
> >
> >
> > To unsubscribe from this group, send an email to:
> > vantage-unsubscribe@egroups.com
>
>
> To unsubscribe from this group, send an email to:
> vantage-unsubscribe@egroups.com
>
>



To unsubscribe from this group, send an email to:
vantage-unsubscribe@egroups.com




To unsubscribe from this group, send an email to:
vantage-unsubscribe@egroups.com