Cable modem > SMC Barricade > D-link DI-524 wireless: wireless OK lan not

My LAN is not seeing computers feeding into my new Dlink Wireless
router/transmitter, and I'm too much a network beginner to figure out
why.

To my existing setup of a cable modem and SMC Barricade router, I
added a Dlink DI-524 wireless router.

Modem cable goes to WAN port of Barricade. Barricade feeds 3 computers
on LAN via ethernet wires + on Port 1, ethernet wire goes to Dlink.

My portable with wireless adapter reaches the Internet via Dlink &
Barricade just fine.

But the computers on the wired LAN don't see the Dlink router or the
portable. And the portable does not see the other computers on the
LAN.

The portable networking *does* work when wired into the Barricade via
a (wired) lan connection (and is set up with the right workgroup and
networking options for wire connections).

How do I get the portable onto my home LAN via the portable's wireless
adapter?

I've tried both a conventional ethernet wire between the Barricade &
the Dlink, and a crossover cable. No LAN connection with either one,
but both work to give the portable wireless access to the Internet.

I don't understand the options for the Dlink WAN setup, so it's just
what was set at the factory.

Dave G.

"Dave G" <dgayman(at)rcn(dot)com> wrote in message
news:(E-Mail Removed)...
> My LAN is not seeing computers feeding into my new Dlink Wireless
> router/transmitter, and I'm too much a network beginner to figure out
> why.
>
> To my existing setup of a cable modem and SMC Barricade router, I
> added a Dlink DI-524 wireless router.
>
> Modem cable goes to WAN port of Barricade. Barricade feeds 3 computers
> on LAN via ethernet wires + on Port 1, ethernet wire goes to Dlink.
>
> My portable with wireless adapter reaches the Internet via Dlink &
> Barricade just fine.
>
> But the computers on the wired LAN don't see the Dlink router or the
> portable. And the portable does not see the other computers on the
> LAN.
>
> The portable networking *does* work when wired into the Barricade via
> a (wired) lan connection (and is set up with the right workgroup and
> networking options for wire connections).
>
> How do I get the portable onto my home LAN via the portable's wireless
> adapter?
>
> I've tried both a conventional ethernet wire between the Barricade &
> the Dlink, and a crossover cable. No LAN connection with either one,
> but both work to give the portable wireless access to the Internet.
>
> I don't understand the options for the Dlink WAN setup, so it's just
> what was set at the factory.
>
> Dave G.

The simplest setup is to not use the WAN port on the D-Link, and shut off
the D-Link's DHCP server on the LAN. Connect a Barricade LAN port to a
D-Link LAN port. You should use a crossover cable, but a straight-through
cable might work if one of the devices has an auto-crossover capability.

Ron Bandes, CCNP, CTT+, etc.