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using a dsl router with a cable modem

Last response: in Networking
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October 11, 2007 10:08:32 PM

Having switched homes, I have changed from a dsl connection to a cable connection.

I have a wireless router+adsl modem, with 4 wired ports, one port can be uplinked.
The model is Sitecom wl-108.

Now this router has a configurable routing section. I can turn on RIP 1 and 2, or create a manual routing table.

I don't know enough about routing to do it but I'm guessing there must be a way to configure the router to share the cable modem connection with my home pcs.

So the final question is: how can I connect the dsl router's network (192.168.1.0) to the cable modem network (84.90.186.0 and 84.90.184.0).

When I connect a pc directly to the cable modem I get these settings:
IP: 84.90.186.86
Subnet mask: 255.255.252.0
Default Gateway: 84.90.184.1

When connecting the pc to the dsl router (that has no dsl cable) I get these settings:
IP: 192.168.1.4
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.1 (the router ip)

Can anyone solve this puzzle?

Thanks.
Duarte

More about : dsl router cable modem

Anonymous
October 12, 2007 12:23:54 PM

Can't be done. You're wasting your time.

Grumpy
October 12, 2007 10:34:23 PM

Quote:
Can't be done. You're wasting your time.

Grumpy


Curious, would it be possible to disable the modem and just use it as a router?
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Anonymous
October 12, 2007 10:55:49 PM

No, there's no Internet port. You could use it as a network switch if you disable DHCP.

Grumpy
October 12, 2007 11:00:59 PM

Quote:
No, there's no Internet port. You could use it as a network switch if you disable DHCP.

Grumpy


Thanks
October 14, 2007 3:29:01 PM

Hi again.

I only saw your replies just now.

The thing is I can connect through the router+modem if:

1 - I first boot everything normally (PC connected to modem, no router)
2 - I disconnect the PC from the modem, and connect the router to modem
3 - I connect the PC to router

I get to surf the web!

I'm hoping to get the same effect by configuring the router and the PC. There must be a way since it works using the recipe above...

Thanks for your help.
October 18, 2007 7:24:21 PM

Activate DHCP on the router and put all the computers on "obtening automatically an IP address", so they get the IP configs from the router. Reboot the computers and they all should go on the internet.

The cable modem plugs on the uplink port of the router. The computers plug on the ethernet ports of the router.
Anonymous
October 18, 2007 11:21:34 PM

There is no "uplink port" on a combination unit with a built-in DSL modem.

Grumpy
November 14, 2007 5:50:47 PM

Grumpy's right. If the router is a DSL router the uplink port cannot be used as an uplink port with cable services
September 28, 2009 4:57:24 PM

I did what yousaid.

plug the modem into the #3 slot on the router and to modem slot to the back of my pc now both my pc and laptop work.
thanks!
!