Connectivity
Connectivity and managing Your Comcast Business network
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tetek
New Member

Netgear CG3000DCR Bridge Mode

Does anybody know how to put the Netgear CG3000DCR in Bridge Mode?

I have dynamic address from Comcast.

I would like to use my own Asus router and DDNS service and DDNS will not work with " A multiple NAT enviroment."

 

Comcast is no help with this problem even though one of their techs told me it would not be a problem before I signed up.

 

Thanks,

 

Tetek

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4 REPLIES 4
Trusted Forum Contributor

Re: Netgear CG3000DCR Bridge Mode

Hello tetek,

 

It will be necessary for you to obtain a staticIP address for your Asus router and program the routable StaticIP address into this device network configuration. After your Comcast statiicIP has been loaded into your Netgear 300,  you can simply :

1.  login to the Netgear 3000 with any computer directly connected to any of the LanPorts 1-4
2.  then bring up a browser and enter 10.1.10.1, then use username= cusadmin and password = highspeed

3. first cklick on FIREWALL link and insure that the disable true static IP firewall and disable spmart packet detection are both checked.  
4. then click on the LAN link
5. simply click on the check mark next to enable DCHP server to uncheck (or disable)
6. click on apply and your Netgear will now be in psuedo-bridge mode.

 

When you put any Comcast gateway in puedo-bridge mode, this typically disables you ability to log into the modem. However, Comcast technical representatives can still login and re-enable you DHCP if this need arises.

 

Hope this helps out. 

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tetek
New Member

Re: Netgear CG3000DCR Bridge Mode

Thanks for the reply.

 

The installer did try to bridge and as you say "lost control of the of the Netgear CG3000DCR .

He had to go to his truck and log directly into Comcast with his laptop to defualt the modem/router .

 

I would like to try some things but I do not want to be in a positon where I loose everthing and have to call Comcast.

 

If everthing goes "down" after my attempts, is it possible to reset the Netgear CG3000DCR to defualts by pressing

the reset button on the rear of the box and come up running again?

 

Also, do you know of another docsys 3 modem (that I can buy) that can be put into bridge mode ?

 

I guess Comcast will tell you anything to get you to sign up!  I was told by one of their techs "no problem" when

I told him I wanted the modem to be bridged so I could use my DDNS from my Asus router.

 

I don't want to pay $15.00 extra a month for a static IP address when I have a DDNS address that used work fine

before I made the switch from At&t..

 

Thanks again for the info,

 

tetek

 

 

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Trusted Forum Contributor

Re: Netgear CG3000DCR Bridge Mode

you should think about getting your own modem, since you say you do not have a static IP & are comfortable with DDNS clients. That way, you can get just a plain-jane modem & use your router for the single NAT that you desire. As well, if you are not getting voice service, you can return the Netgear & you will get the ~5-$8 modem rental fee taken off your bill.

 

Particularly good models as of late are the Motorola SB6141, and the Zoom 5341J. Both are about $60-$80

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Trusted Forum Contributor

Re: Netgear CG3000DCR Bridge Mode

 

Please see my responses below.

 

Thanks for the reply.

 

You are very welcome.

 

The installer did try to bridge and as you say "lost control of the of the Netgear CG3000DCR .

He had to go to his truck and log directly into Comcast with his laptop to defualt the modem/router .

 

I would like to try some things but I do not want to be in a positon where I loose everthing and have to call Comcast.

 

If everthing goes "down" after my attempts, is it possible to reset the Netgear CG3000DCR to defualts by pressing

the reset button on the rear of the box and come up running again?

 

Yes, you must press the little black reset button for at least 15 seconds to insure it will go back to factory defaults and enable the internal DHCP server.

 

Also, do you know of another docsys 3 modem (that I can buy) that can be put into bridge mode ?

 

Comcast does allow customer owned modems that you can find at http://mydeviceinfo.comcast.net . Just slide the Business Tier blue ball down to you speed tier and it will show the supported business customer modems below. It is important that you realize Comcast will only support this modem wrt insuring that the correct internet service bootfile is loaded and operational. Comcast Static IPs can only be loaded and configured on Comcast provided modems, not customer owned modems. If you have any hardware, firmware, etc. issue with your customer owned modem, then you will have to obtain the manufacturer's serviceability and maintainability. 

 

I guess Comcast will tell you anything to get you to sign up!  I was told by one of their techs "no problem" when

I told him I wanted the modem to be bridged so I could use my DDNS from my Asus router.

 

It is my opinion that Comcast provides all the technology to insure that using proper and best practices networking interconnections can maximize consistency of your business functional operation.

 

I don't want to pay $15.00 extra a month for a static IP address when I have a DDNS address that used work fine

before I made the switch from At&t.. 

 

This is totally your decision to make, but utilizing best networking practices is always the best for your business.

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