Switching hub won't work with router

[H.B. Elkins]

Need some help getting a switching hub to work with a router.

I have a D-Link DI-604+ router I'm using with my DSL service. It works
perfectly with both my iBook's Airport card and a hard-wired Ethernet
connection.

Problem is, it only has four ports and my network has more than four
devices. I need to hook up a couple more computers and a printer. So I
obtained a Hawking Technologies 5-port 10/100 Mbps auto-negotiation
switch, model number PN505ES. This has (obviously) five ports and an
uplink port on the front.

When I connect the switch to the router, I cannot get a connection to
the Internet when a computer is plugged into the switch. Everything
works fine when the computer is plugged into the router with a Cat5
cable, but no go when plugged into the switch, which is connected to
the router.

Anyone have any ideas on what's going wrong? Could it be that the
Hawking hub and the D-Link router just don't play nice with each
other?

If no one has ideas on how to get this switch and router to work
together, ideas on a switch that will work with the D-Link router
would be appreciated.


+++++++++++++++++++++++++
H.B. Elkins -- Beattyville, KY
[url]http://www.millenniumhwy.net[/url] hbelkins(at)mis.net

"There's no doubt he's the best race driver in the world."
--Dale Jarrett, on the late Dale Earnhardt

Go Big Blue (Kentucky Wildcats)! Go #15 (Michael Waltrip, NAPA Chevy)!

Vote Ernie Fletcher for Governor of Kentucky! [url]http://www.fletcher2003.com[/url]

To reply, just remove the restrictorplates...
++++++++++++++++++++++++++

[fishfry]

In article <3f4c070d.61452@news.newsguy.com>,
[email]hbelkins@restrictorplates.mis.net[/email] (H.B. Elkins) wrote:

> Need some help getting a switching hub to work with a router.
>
> I have a D-Link DI-604+ router I'm using with my DSL service. It works
> perfectly with both my iBook's Airport card and a hard-wired Ethernet
> connection.
>
> Problem is, it only has four ports and my network has more than four
> devices. I need to hook up a couple more computers and a printer. So I
> obtained a Hawking Technologies 5-port 10/100 Mbps auto-negotiation
> switch, model number PN505ES. This has (obviously) five ports and an
> uplink port on the front.
>
> When I connect the switch to the router, I cannot get a connection to
> the Internet when a computer is plugged into the switch. Everything
> works fine when the computer is plugged into the router with a Cat5
> cable, but no go when plugged into the switch, which is connected to
> the router.
>
> Anyone have any ideas on what's going wrong? Could it be that the
> Hawking hub and the D-Link router just don't play nice with each
> other?
>
> If no one has ideas on how to get this switch and router to work
> together, ideas on a switch that will work with the D-Link router
> would be appreciated.
>
>

Did you connect the router to the hub's uplink port? Without knowing
anything about the situation, if that doesn't work, try a crossover
cable and/or plug into a regular (not uplink) port on the hub.

[Tom Stiller]

In article <fishfry-FB060E.20015726082003@netnews.attbi.com>,
fishfry <fishfry@your-mailbox.com> wrote:

> In article <3f4c070d.61452@news.newsguy.com>,
> [email]hbelkins@restrictorplates.mis.net[/email] (H.B. Elkins) wrote:
>

> > Need some help getting a switching hub to work with a router.
> >
> > I have a D-Link DI-604+ router I'm using with my DSL service. It works
> > perfectly with both my iBook's Airport card and a hard-wired Ethernet
> > connection.
> >
> > Problem is, it only has four ports and my network has more than four
> > devices. I need to hook up a couple more computers and a printer. So I
> > obtained a Hawking Technologies 5-port 10/100 Mbps auto-negotiation
> > switch, model number PN505ES. This has (obviously) five ports and an
> > uplink port on the front.
> >
> > When I connect the switch to the router, I cannot get a connection to
> > the Internet when a computer is plugged into the switch. Everything
> > works fine when the computer is plugged into the router with a Cat5
> > cable, but no go when plugged into the switch, which is connected to
> > the router.
> >
> > Anyone have any ideas on what's going wrong? Could it be that the
> > Hawking hub and the D-Link router just don't play nice with each
> > other?
> >
> > If no one has ideas on how to get this switch and router to work
> > together, ideas on a switch that will work with the D-Link router
> > would be appreciated.
> >
> >

>
> Did you connect the router to the hub's uplink port? Without knowing
> anything about the situation, if that doesn't work, try a crossover
> cable and/or plug into a regular (not uplink) port on the hub.

Also, some hubs have he uplink port in common with one of the normal
ports, just crossed over internally. When that is the case, only one of
the two ports may be used.

--
Tom Stiller

PGP fingerprint = 5108 DDB2 9761 EDE5 E7E3
7BDA 71ED 6496 99C0 C7CF

[David C.]

[email]hbelkins@restrictorplates.mis.net[/email] (H.B. Elkins) writes:

>
> When I connect the switch to the router, I cannot get a connection
> to the Internet when a computer is plugged into the switch.
> Everything works fine when the computer is plugged into the router
> with a Cat5 cable, but no go when plugged into the switch, which is
> connected to the router.

When you connect the switch to the router, do you get link lights on
the ports used for that cable? (If neither your router nor your
switch have link lights, then you've got a _really_ cheap brand.)

If the link lights don't come on, then your need to use either a
different port or a different cable.

Normally, you use a straight cable (pairs 1-4 connect to pairs 1-4) to
connect a host to a hub. You use a crossover cable (pairs 2 and 3
are swapped on one end) to connect two hosts to each other or to
connect two hubs to each other.

Some hubs have a "crossover" port which has pairs 2 and 3 swapped -
this allows you to use that port to connect it to another hub using a
straight cable.

Some hubs have a switch that allows you to configure one port as
straight or crossover.

If you get the polarity wrong, then the link won't work. A hub or
tranceiver with link lights will indicate this by indicating a "no
carrier" condition (typically by the link light not coming on.)

Note that the cable you're using for your Mac is not necessarily the
right one to connect a router to a switch. Modern Macs have circuitry
to auto-detect what's on the othe end of the cable and internally
cross the wires if you use the wrong kind of cable.

-- David

[H.B. Elkins]

[email]shamino@techie.com[/email] (David C.) wrote:

>When you connect the switch to the router, do you get link lights on
>the ports used for that cable? (If neither your router nor your
>switch have link lights, then you've got a _really_ cheap brand.)
>
>If the link lights don't come on, then your need to use either a
>different port or a different cable.

Link lights on both the router and switch, and I'll double check to
see if the uplink port has a link light.

>Normally, you use a straight cable (pairs 1-4 connect to pairs 1-4) to
>connect a host to a hub. You use a crossover cable (pairs 2 and 3
>are swapped on one end) to connect two hosts to each other or to
>connect two hubs to each other.
>
>Some hubs have a "crossover" port which has pairs 2 and 3 swapped -
>this allows you to use that port to connect it to another hub using a
>straight cable.

I had a cable plugged into the port next to the uplink port. I'll try
unplugging that one and see if it clears up. I'll also try connecting
the switch and router with a crossover cable.


+++++++++++++++++++++++++
H.B. Elkins -- Beattyville, KY
[url]http://www.millenniumhwy.net[/url] hbelkins(at)mis.net

"There's no doubt he's the best race driver in the world."
--Dale Jarrett, on the late Dale Earnhardt

Go Big Blue (Kentucky Wildcats)! Go #15 (Michael Waltrip, NAPA Chevy)!

Vote Ernie Fletcher for Governor of Kentucky! [url]http://www.fletcher2003.com[/url]

To reply, just remove the restrictorplates...
++++++++++++++++++++++++++

[David C.]

[email]hbelkins@restrictorplates.mis.net[/email] (H.B. Elkins) writes:

>
> Link lights on both the router and switch, and I'll double check to
> see if the uplink port has a link light.

If all the relevant cables have link lights, then it's probably not a
physical issue.

Given that most inexpensive switches are unmanaged, there isn't too
much more to check.

Some switches/hubs (even ones without management interfaces) will
allow you to configure them to "partition" the ports into multiple
independant LAN segments - my 24-port Compaq Netelligent hub supported
this. If the ports are partitioned, then packets sent to one
partition will not get forwarded to any of the other partitions. An
inexpensive switch/hub (or one with a small number of ports) will
probably not have this feature.

I've also seen unmanaged switches/hubs that will let you disable
individual ports. If yours has this feature, make sure none of the
ports are disabled.

> I had a cable plugged into the port next to the uplink port. I'll
> try unplugging that one and see if it clears up. I'll also try
> connecting the switch and router with a crossover cable.

That's another thing (which I didn't mention because othes have
already mentioned it). Some inexpensive switches/hubs have an
"uplink" port that is shared with another physical port. If you try
to use both at once, you may find that neither end up working
properly.

-- David