Disable Modem in a Modem / Router

Hi All,

I'm not sure how it works but...

I have a Modem/Router and would like to use only the router.  Is there a way to remove the modem features and let it act as a router with DHCP?

Thanks in advance
ReyesrjAsked:
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arnoldCommented:
Are you talking about without any access to the outside?
The modem/router often has only An ports avIalable with the modem part the only external connection.
What modem moke/model?

My guess is now you have a new connection and would like to use the modem/router with the new connection.


Do you have access to the modem/router config setup interface?
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bbaoIT ConsultantCommented:
> Is there a way to remove the modem features and let it act as a router with DHCP?

normally you don't need to configure anything special, just leave the modem port UNPLUGGED. that's it.

by default, most modem routers' default configuration is DHCP enabled, nothing to do either.

however, for detailed instruction, please advise the router model so we can give specific how-to information.
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JohnBusiness Consultant (Owner)Commented:
In any modem I have seen, the router component is built in and there is no IN port other than the modem port. So you will not have anything at the end.

The routers inside are nothing special, so just get a decent separate router. That would be my advice.
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ReyesrjAuthor Commented:
Here is a link to the modem/router
http://www.trendnet.com/products/proddetail.asp?prod=140_TDM-C504

The cost for one of these is around $40.00.  My ISP provided a modem and a static IP address.  I happen to have a Cisco AP (wireless wi-fi access point).  So I don't want to spend money on a wireless router but the local retail stores don't have any non-wireless routers.  The cheapest, compared to VPN routers, is the modem / router.  All I really need now is a router.

I was told you can't have two modems so the modem / router won't work with the modem provided by the ISP.

Just looking for alternative solutions to save some money.

Thanks in advance
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JohnBusiness Consultant (Owner)Commented:
The product you showed only has LAN ports and does not appear to have a WAN port (just a DSL port) so I do not see how it is going to function as a router only.
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bbaoIT ConsultantCommented:
agree with John. you can't use this device as a regular router, a dumb 4-port switch is okay.
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Dave BaldwinFixer of ProblemsCommented:
I'm not sure why you need a router if you're not using wireless.  Routers are used to set up Separate networks.  The static IP address is usually to the outside world, not your LAN.  Most modems provide DHCP to multiple clients thru a switch.  Mine does.
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arnoldCommented:
Excluding the cisco AP. Please include the details on the new device you were provided?
if the new device is a straight bridging device, you have no other option but to get a router, if you want a wired only router, but it online and wait

If the device you were provided can be reconfigured into Nat, you could configure the modem/router with LAN IP other than the one on the new ISp device, while configuring the DHCP default gateway on the modem/router to match the IP of the new isp's device.


The modem/router will be allocating IPs matching the segment on the Lan side into one of the LANmports as you had before you would plug in the Cisco AP.

From your last comment, it sounds as though the new device is a single connection model .
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ReyesrjAuthor Commented:
Thanks All,
I'll look for a modem online.
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arnoldCommented:
You d not need a modem, you need a router.

An option you might also explore is whether tge modem/router you have can be configured to work with the new provider.
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ReyesrjAuthor Commented:
Correction, I will look for a router online. :)
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ReyesrjAuthor Commented:
Thanks Arnold!
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arnoldCommented:
No problem, what is the new connection? If it too is a ADSL type, the option to reuse the modem/router you have is not compatible?
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JohnBusiness Consultant (Owner)Commented:
@Reyesrj  - Thanks and good luck with obtaining a router.
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