home networking issues

[sandeepmur]

Hi,

I have the current setup at my home:
1. A cable modem connected via USB to a desktop
2. A RJ45 cable connects the Desktop to a HUB.
3. Another RJ45 cable connects a Wireless Gateway to the HUB
and now all my other laptops connect wirelessly to the internet

The cable modem also has a RJ45 port in it and i was informed that I could connect the CAble modem directly to the Gateway or the HUB and could have wireless internet access from the laptops.

The desktop basically serves as the host machine for the internet and as a DHCP server and runs 24x7.
So can I get rid of the desktop ??

if yes, how exactly do I go about it ?

thnx,
sands

 

[franklin97355]

You need something to provide the laptops with an internal ip. You can do this with a cable router or you can set the laptops up manually.

 

[edfair]

modem to router uplink, router to WAP, router to desktop.
For small installs you can use the router ports to replace the hub.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[sandeepmur]

Thnx for the suggestions. The thing is, I dont have a router and incase i buy one, it would be a wireless router which I dont plan to do so at the moment.

So, cant I do away with the desktop with my existing hardware i.e, the Cable modem, Gateway and a HUB ?

thnx,
sands

 

[bcastner]

Tell us more about the cable modem. Some offer modest but servicable modem/router capabilities. Some do not.

The cable modem Manufacturer, and specific Model # would help a lot.

If there are not traditional router functions, including a DHCP server, then quite different suggestions need to be made in your instance.

Bill Castner

 

[sandeepmur]

Hi,

The cable modem appears to be a generic one supplied by my local ISP. The User Manual indicates that it is a CME100 Series DOCSIS(Euro-DOCSIS) compliant Cable modem and following are its features:

Features
Up to 42.88 Mbps (55.2 Mbps for Euro-DOCSIS) downstream and up to 30.72 Mbps upstream, two-way cable modem.
F-Connector for the cable interface.
Standard RJ-45 connector for 10/100BaseT Ethernet with auto-negotiation function.
USB Connector for USB interfaces.
Frequency agility.
Multiple users support.
Transparent bridging for IP traffic.
RSA and 56 bit DES data encryption security.
Interoperable with any DOCSIS (Euro-DOCSIS) compatible cable modems and headend equipment.
SNMP network management support.
Remote operating firmware downloading.
Support private DHCP server for status monitoring
Clear LED display.
Plug and Play.
DHCP server.

Hope this was helpfull.

thnx

 

[bcastner]

DHCP server.

Good. Connect the modem to the hub.
You do not need to run ICS on a host machine.

 

[sandeepmur]

Hi,

I connected the Modem to the HUB and then the GATEWAY to the HUB and great, my laptop A can connect to the internet wirelessly BUT now I have another problem.

I checked the IP of my laptop A and it was the IP assigned by the ISP 81.193.xxx.xx. Now, I booted another laptop B but this laptop B cannot connect to the net nor does it even have an IP assigned.

I tried doing an Internet Sharing on Laptop A but still nothing.

I also tried connecting the modem directly to the Gateway with the same results.. How can I make laptop B connect to the net now ??

Thnx a bunch,

sands

 

[bcastner]

Perhaps the DHCP server feature is only handing out IPs from your ISP address block, which is not what you want.

Tell me the make and model number of " Wireless Gateway to the HUB"

If this is only an Access Point, an inexpensive wired router would be strongly recommended.

 

[sandeepmur]

Yes, its only an Access Point. The make is Airway Transport but the model has been discontinued and no firmware upgrades are available.

I am thinking of buying a wireless router but in the meanwhile can I make this setup work ??

thnx again

 

[bcastner]

Unlikely other than using ICS as you are doing now.
You just cannot have non-NAT IPs being handed out by the modem, you need an inexpensive broadband router.

We are talking about US $30 at most.

 

[sandeepmur]

But using ICS too is not helping..

anyway, thnx for all the help !

 

[bcastner]

The only issue is that ICS demands the use by the host of IP 192.168.0.1.

If this is what the modem is handing out, or its own IP address, you have an nearly insurmountable issue.

That an inexpensive broadband router would fix.