PDA

View Full Version : Use of router and switch together


JMF
June 15th 03, 09:09 AM
Question: Can a LAN switch be used in conjunction with a DSL 4-port router
(via router's uplink post), to multiply the number of PCs that can be used
on the LAN?

Not sure if this question belongs in a Hardware newsgroup, or Networking
newsgroup -- so am posting both places! Here's the background and detail on
my question:

I have a home LAN system that uses Internet Connection Sharing for our four
PCs, driven by a WinXP box and XP's cool little Networking wizard. A
Linksys 8-post switch is the device I use for linking all the PC's of our
network. Everything works fine. But...

A friend recently convinced me I should switch to the use of a router, due
to the increased security afforded by a hardware firewall, rather than
WinXP's software firewall on my current system.

Happily, I recently found one of Linksys' low-end (Networked Everywhere)
routers on sale, so decided to give it a try. Problem is that the router
includes only a 4-port switch. And even though we have only 4 PC's on our
home LAN, I have other Ethernet cables run to places of convenience for use
of notebook PCs in the house, away from usual desk settings. Thus, I want
to use the 8-port switch, uplinked from the router, so that I can have all
of my Ethernet cables plugged in when needed.

So what's the problem?

My friend who persuaded me to purchase the router is telling me that it's a
bad idea to use the switch. He claims I'll have packet crashes, but one of
the things I learned when studying Networking last year, from setting up my
current system, is that switches avoid the packet crashing that was common
with hubs. Friend says I should buy an 8-port router instead. Seems like
overkill to me, especially since I've already invested money in the switch
and it's been working fine.

I have talked with Linksys Tech Support, and they say my plan to increase
the DSL/LAN signal to other PCs via an uplink connection to the 8-port
switch is a common and OK method of increasing number of PCs on a LAN.
Thus, I gave it a try with one of our PCs, and everything seems to be
working fine.

Does anyone see any reason why I should NOT continue using this method?

--

John M. Fischer <*(((><
Portland, Oregon, USA

Steve Winograd
June 15th 03, 09:27 AM
In article >, "JMF"
> wrote:
>Question: Can a LAN switch be used in conjunction with a DSL 4-port router
>(via router's uplink post), to multiply the number of PCs that can be used
>on the LAN?

Yes.

>Not sure if this question belongs in a Hardware newsgroup, or Networking
>newsgroup -- so am posting both places! Here's the background and detail on
>my question:
>
>I have a home LAN system that uses Internet Connection Sharing for our four
>PCs, driven by a WinXP box and XP's cool little Networking wizard. A
>Linksys 8-post switch is the device I use for linking all the PC's of our
>network. Everything works fine. But...
>
>A friend recently convinced me I should switch to the use of a router, due
>to the increased security afforded by a hardware firewall, rather than
>WinXP's software firewall on my current system.

I'm curious: what increased security is that? What does a hardware
firewall offer that XP's software firewall doesn't?

I see other advantages to a router: more reliable than ICS, doesn't
require a host computer to be always running, more configurable, etc.

>Happily, I recently found one of Linksys' low-end (Networked Everywhere)
>routers on sale, so decided to give it a try. Problem is that the router
>includes only a 4-port switch. And even though we have only 4 PC's on our
>home LAN, I have other Ethernet cables run to places of convenience for use
>of notebook PCs in the house, away from usual desk settings. Thus, I want
>to use the 8-port switch, uplinked from the router, so that I can have all
>of my Ethernet cables plugged in when needed.

I have the Network Everywhere NR401 and have installed one for a
client of mine. It's a cute little box.

>So what's the problem?
>
>My friend who persuaded me to purchase the router is telling me that it's a
>bad idea to use the switch. He claims I'll have packet crashes, but one of
>the things I learned when studying Networking last year, from setting up my
>current system, is that switches avoid the packet crashing that was common
>with hubs. Friend says I should buy an 8-port router instead. Seems like
>overkill to me, especially since I've already invested money in the switch
>and it's been working fine.

Do you mean collisions? If so, I agree with you and disagree with
your friend. I run networks with a router and one or two additional
levels of switches, and I don't see any problems.

>I have talked with Linksys Tech Support, and they say my plan to increase
>the DSL/LAN signal to other PCs via an uplink connection to the 8-port
>switch is a common and OK method of increasing number of PCs on a LAN.
>Thus, I gave it a try with one of our PCs, and everything seems to be
>working fine.

I agree with Linksys.

>Does anyone see any reason why I should NOT continue using this method?

I don't.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

Google