HELP - Cable Modem on Coax Network - possible????

HELP - Cable Modem on Coax Network - possible????

Post by Joseph Witki » Thu, 25 Jun 1998 04:00:00



I have a thin (coax) ethernet network here with 4 macs and one W95 PC,
currently connected to a Pipeline 75 ISDN Router, which has 10base2 coax
connection. I am trying to find out if there is a way to connect a cable
modem (RJ45 twisted pair interface only) to my coax network.

This must have come up before!!

My main mac's ethernet card has 10baseT AND 10base2 (coax) interfaces, but
only uses one at a time.

I tried a second PCI-ethernet card (PCI to 10base2), but apparently the mac
can't see both ethernet cards at the same time, so I still lose the rest of
my network as far as the cable modem is concerned.

Isn't there SOME way of translating or bridging the coax network to a
10baseT cable modem at reasonable cost?

I CANNOT rewire my whole house for twisted pair. I do not want to get in to
a Windows NT server. Would the W95/98 machine be any more lenient (with the
right card) than the Mac? Or is there a reasonably priced HUB that would
bridge both connections ("has to have an uplink port" according to my cable
company).

Knowledgable folk, PLEASE HELP! I really want to get my neywork on cable!!

Why don't they put a 10base2 connection on the friggin' modem? Wouldn't cost
that much more!

Thanks!!

Joseph Witkin

 
 
 

HELP - Cable Modem on Coax Network - possible????

Post by Kenyon Ralp » Thu, 25 Jun 1998 04:00:00



> I have a thin (coax) ethernet network here with 4 macs and one W95 PC,
> currently connected to a Pipeline 75 ISDN Router, which has 10base2 coax
> connection. I am trying to find out if there is a way to connect a cable
> modem (RJ45 twisted pair interface only) to my coax network.

You could use Sygate (or any of the other ones) on the Windows
computer.  You just need 2 Ethernet cards: one for the local network
(10base2), and one for the cable modem (10baseT).  I think it would be a
normal Sygate NAT sharing deal, besides the 2 different Ethernet cards
(you would have 2 cards anyway, even if they weren't different types of
wire).

Quote:

> This must have come up before!!

Not that I'm aware of.

Quote:

> My main mac's ethernet card has 10baseT AND 10base2 (coax) interfaces, but
> only uses one at a time.

You can probably just keep it on the 10base2.

Quote:

> I tried a second PCI-ethernet card (PCI to 10base2), but apparently the mac
> can't see both ethernet cards at the same time, so I still lose the rest of
> my network as far as the cable modem is concerned.

Doing it the way I described above, you shouldn't need to change any of
the client configurations; only the Windows box will need to be
configured.

Quote:

> Isn't there SOME way of translating or bridging the coax network to a
> 10baseT cable modem at reasonable cost?

This shouldn't cost too much.

Quote:

> I CANNOT rewire my whole house for twisted pair. I do not want to get in to
> a Windows NT server. Would the W95/98 machine be any more lenient (with the
> right card) than the Mac? Or is there a reasonably priced HUB that would
> bridge both connections ("has to have an uplink port" according to my cable
> company).

Not that I am aware of.  The way above should work.

Quote:

> Knowledgable folk, PLEASE HELP! I really want to get my neywork on cable!!

I have helped.  Hopefully.  :-)

Quote:

> Why don't they put a 10base2 connection on the friggin' modem? Wouldn't cost
> that much more!

10baseT is more common I would say.  10base2 is great in some
situations, like when there are a bunch of computers near each other.
With 10baseT you would have hubs and wiring all over the place.  10base2
would be able to go computer to computer.

Quote:

> Thanks!!

You're welcome.

--
Kenyon Ralph

http://home.san.rr.com/ralphs
ICQ: 8552071
PGP Public Key available at:
http://home.san.rr.com/ralphs/kenyon/public-key

 
 
 

HELP - Cable Modem on Coax Network - possible????

Post by John Gil » Thu, 25 Jun 1998 04:00:00



> I have a thin (coax) ethernet network here with 4 macs and one W95 PC,
> currently connected to a Pipeline 75 ISDN Router, which has 10base2 coax
> connection. I am trying to find out if there is a way to connect a cable
> modem (RJ45 twisted pair interface only) to my coax network.

> This must have come up before!!

> My main mac's ethernet card has 10baseT AND 10base2 (coax) interfaces, but
> only uses one at a time.

> I tried a second PCI-ethernet card (PCI to 10base2), but apparently the mac
> can't see both ethernet cards at the same time, so I still lose the rest of
> my network as far as the cable modem is concerned.

> Isn't there SOME way of translating or bridging the coax network to a
> 10baseT cable modem at reasonable cost?

> I CANNOT rewire my whole house for twisted pair. I do not want to get in to
> a Windows NT server. Would the W95/98 machine be any more lenient (with the
> right card) than the Mac? Or is there a reasonably priced HUB that would
> bridge both connections ("has to have an uplink port" according to my cable
> company).

> Knowledgable folk, PLEASE HELP! I really want to get my neywork on cable!!

> Why don't they put a 10base2 connection on the friggin' modem? Wouldn't cost
> that much more!

Ultimately, you will need to use a coax NIC to connect to the ethernet
backbone, and an RJ-45 NIC to connect to the cable modem.  Another
solution is to get an ethernet hub with coax and RJ-45 connections...
quite common actually.

--
- John J. Gill
GILL & COMPANY, CPAs
---------------------------------------------
- TAX SOLUTIONS: IRS problems, international
tax issues, general tax practice.
- TECHNOLOGY SOLUTIONS: remote access netwk'g
---------------------------------------------

 
 
 

HELP - Cable Modem on Coax Network - possible????

Post by Tom Perkin » Thu, 25 Jun 1998 04:00:00


You can always try Blackbox.  My 10BaseT hub has an AUI connector on the
back (intended for 10Base5) so I bought an AUI 10Base2 transciever from
blackbox.  There are also 10Base2 to 10BaseT direct converters.  Try
Ascend first as Blackbox is expensive.

Regards

Tom


> I have a thin (coax) ethernet network here with 4 macs and one W95 PC,
> currently connected to a Pipeline 75 ISDN Router, which has 10base2 coax
> connection. I am trying to find out if there is a way to connect a cable
> modem (RJ45 twisted pair interface only) to my coax network.

> This must have come up before!!

> My main mac's ethernet card has 10baseT AND 10base2 (coax) interfaces, but
> only uses one at a time.

> I tried a second PCI-ethernet card (PCI to 10base2), but apparently the mac
> can't see both ethernet cards at the same time, so I still lose the rest of
> my network as far as the cable modem is concerned.

> Isn't there SOME way of translating or bridging the coax network to a
> 10baseT cable modem at reasonable cost?

> I CANNOT rewire my whole house for twisted pair. I do not want to get in to
> a Windows NT server. Would the W95/98 machine be any more lenient (with the
> right card) than the Mac? Or is there a reasonably priced HUB that would
> bridge both connections ("has to have an uplink port" according to my cable
> company).

> Knowledgable folk, PLEASE HELP! I really want to get my neywork on cable!!

> Why don't they put a 10base2 connection on the friggin' modem? Wouldn't cost
> that much more!

> Thanks!!

> Joseph Witkin

 
 
 

HELP - Cable Modem on Coax Network - possible????

Post by M Kross » Thu, 25 Jun 1998 04:00:00



>I have a thin (coax) ethernet network here with 4 macs and one W95 PC,
>currently connected to a Pipeline 75 ISDN Router, which has 10base2 coax
>connection. I am trying to find out if there is a way to connect a cable
>modem (RJ45 twisted pair interface only) to my coax network.

If I understand correctly

I use a ($70 at CompUSA)  Linksys ethernet hub to
connect my existing thin coax ethernet into the RJ45 cable modem.
The Linksys hub  has about 8 RJ45 ports, and a single 10base2 coax port.

The RJ45 Cablemodem goes into one of the RJ45 ports;  the rest of the
network, which is 10base2 coax, is daisy-chained into the single coax
port on the Linksys hub.

One of the 8  RJ45 ports on the Linksys hub is an "uplink" port. I think I
use this one
for the cablemodem.

Anyway; its been working since last October.

 
 
 

HELP - Cable Modem on Coax Network - possible????

Post by taxlaw » Sat, 27 Jun 1998 04:00:00




> > I have a thin (coax) ethernet network here with 4 macs and one W95 PC,
> > currently connected to a Pipeline 75 ISDN Router, which has 10base2 coax
> > connection. I am trying to find out if there is a way to connect a cable
> > modem (RJ45 twisted pair interface only) to my coax network.

> > This must have come up before!!

> > My main mac's ethernet card has 10baseT AND 10base2 (coax) interfaces, but
> > only uses one at a time.

> > I tried a second PCI-ethernet card (PCI to 10base2), but apparently the mac
> > can't see both ethernet cards at the same time, so I still lose the rest of
> > my network as far as the cable modem is concerned.

> > Isn't there SOME way of translating or bridging the coax network to a
> > 10baseT cable modem at reasonable cost?

> > I CANNOT rewire my whole house for twisted pair. I do not want to get in to
> > a Windows NT server. Would the W95/98 machine be any more lenient (with the
> > right card) than the Mac? Or is there a reasonably priced HUB that would
> > bridge both connections ("has to have an uplink port" according to my cable
> > company).

> > Knowledgable folk, PLEASE HELP! I really want to get my neywork on cable!!

> > Why don't they put a 10base2 connection on the friggin' modem? Wouldn't cost
> > that much more!

> Ultimately, you will need to use a coax NIC to connect to the ethernet
> backbone, and an RJ-45 NIC to connect to the cable modem.  Another
> solution is to get an ethernet hub with coax and RJ-45 connections...
> quite common actually.

Very wise words indeed.  

Bill

 
 
 

HELP - Cable Modem on Coax Network - possible????

Post by Sky Walk » Wed, 01 Jul 1998 04:00:00


You can either buy a cheap 10BaseT hub(must have 10Base2 connector) or get a
10BaseT to 10Base2 transceiver.

Personally I will go for cheap 10BaseT hub solution.

=>I have a thin (coax) ethernet network here with 4 macs and one W95 PC,
=>currently connected to a Pipeline 75 ISDN Router, which has 10base2 coax
=>connection. I am trying to find out if there is a way to connect a cable
=>modem (RJ45 twisted pair interface only) to my coax network.
=>
=>This must have come up before!!
=>
=>My main mac's ethernet card has 10baseT AND 10base2 (coax) interfaces, but
=>only uses one at a time.
=>
=>I tried a second PCI-ethernet card (PCI to 10base2), but apparently the mac
=>can't see both ethernet cards at the same time, so I still lose the rest of
=>my network as far as the cable modem is concerned.
=>
=>Isn't there SOME way of translating or bridging the coax network to a
=>10baseT cable modem at reasonable cost?
=>
=>I CANNOT rewire my whole house for twisted pair. I do not want to get in to
=>a Windows NT server. Would the W95/98 machine be any more lenient (with the
=>right card) than the Mac? Or is there a reasonably priced HUB that would
=>bridge both connections ("has to have an uplink port" according to my cable
=>company).
=>
=>Knowledgable folk, PLEASE HELP! I really want to get my neywork on cable!!
=>
=>Why don't they put a 10base2 connection on the friggin' modem? Wouldn't cost
=>that much more!
=>
=>Thanks!!
=>
=>Joseph Witkin

----------------------------------------------------------------------
Reach me at
Sky nospace double underscore nospace Walker at Hotmail period company
----------------------------------------------------------------------

 
 
 

1. Extending coax cable possible?

Hi everybody!
I want to move a PC (in a 2 PC home Ethernet LAN, currently working OK) from
one corner of the room to the opposite one.
Can someone tell me if it is possible to extend a thin coax (cheapernet) cable
 connecting a second length of it with m/f BNC connectors? Or is it necessary
 that the whole cable is in 1 piece?
The 1st solution would be more convenient for me due to the current layout of
the cable (through walls, etc). Any suggestion or advice welcome here or by
e-mail.
TIA,

                Daniel Donate Reuss
                Madrid (Spain)

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( Bill Gates )
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