using a dsl router with a cable modem

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
9 answers Last reply
More about using router cable modem
  1. Can't be done. You're wasting your time.

    Grumpy
  2. 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?
  3. No, there's no Internet port. You could use it as a network switch if you disable DHCP.

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

    Grumpy


    Thanks
  5. 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.
  6. 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.
  7. There is no "uplink port" on a combination unit with a built-in DSL modem.

    Grumpy
  8. Grumpy's right. If the router is a DSL router the uplink port cannot be used as an uplink port with cable services
  9. 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!
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