Advice for a newbie please

Good morning,

I have a zoom ethernet adsl modem

I also have a netgear wireless router.

The modem plugs into the wan port of the router and my PC's wired and
wireless access the internet via the router. All very straight forward.

However, I need to open up a port (80) so I can remotely access an
application on one of my PC's

I have become totally confused by the separation of the modem and the
router.

Can anyone advise what ports I need to open what to point to...

ie do I open up port 80 and point to my routers gateway and then pont
from router gateway to the pc in question...? Or do i point straight
from the modem to the pc in question...

Many thanks for your help !

Re: Advice for a newbie please

andrewstanton@gmail.com wrote:
> Good morning,
>
> I have a zoom ethernet adsl modem
>
> I also have a netgear wireless router.
>
> The modem plugs into the wan port of the router and my PC's wired and
> wireless access the internet via the router. All very straight forward.
>
> However, I need to open up a port (80) so I can remotely access an
> application on one of my PC's
>
> I have become totally confused by the separation of the modem and the
> router.
>
> Can anyone advise what ports I need to open what to point to...
>
> ie do I open up port 80 and point to my routers gateway and then pont
> from router gateway to the pc in question...? Or do i point straight
> from the modem to the pc in question...
>
> Many thanks for your help !
>

It's called port forwarding on the router where you open the port on the
router to let unsolicited inbound on the port and forward the traffic to
a private side LAN IP/machine, which should be a static IP on the router
that the computer is using. And what port that needs to be open is based
on the inbound port or ports(s) the software document indicates. Netgear
should have a Website Knowledge base with this information and how to
configure the router and the computer to use a static IP on the router.

http://www.homenethelp.com/web/explain/port-forwarding-dmz.a sp

And if you have a personal FW running on the machine, you'll have to
open the port or ports there too.

In order for you to make contact, with you network, you need to point to
the public IP the modem is using from the ISP.

You should keep this in mind. If you're trying to make contact with your
network from work and it's not authorized, that may be trouble for you
as the FW Admin will stop something like that.

Keep the machine out of the DMZ.

Duane :)

Re: Advice for a newbie please

"Duane Arnold" <"Do forget about it"@PleaeDo.BET> wrote in message
news:WbQMg.9440$bM.3485@newsread4.news.pas.earthlink.net...
> andrewstanton@gmail.com wrote:
>> Good morning,
>>
>> I have a zoom ethernet adsl modem
>>
>> I also have a netgear wireless router.
>>
>> The modem plugs into the wan port of the router and my PC's wired and
>> wireless access the internet via the router. All very straight forward.
>>
>> However, I need to open up a port (80) so I can remotely access an
>> application on one of my PC's
>>
>> I have become totally confused by the separation of the modem and the
>> router.
>>
>> Can anyone advise what ports I need to open what to point to...
>>
>> ie do I open up port 80 and point to my routers gateway and then pont
>> from router gateway to the pc in question...? Or do i point straight
>> from the modem to the pc in question...
>>
>> Many thanks for your help !
>>
>
> It's called port forwarding on the router where you open the port on the
> router to let unsolicited inbound on the port and forward the traffic to a
> private side LAN IP/machine, which should be a static IP on the router
> that the computer is using. And what port that needs to be open is based
> on the inbound port or ports(s) the software document indicates. Netgear
> should have a Website Knowledge base with this information and how to
> configure the router and the computer to use a static IP on the router.
>
> http://www.homenethelp.com/web/explain/port-forwarding-dmz.a sp
>
> And if you have a personal FW running on the machine, you'll have to open
> the port or ports there too.
>
> In order for you to make contact, with you network, you need to point to
> the public IP the modem is using from the ISP.
>
> You should keep this in mind. If you're trying to make contact with your
> network from work and it's not authorized, that may be trouble for you as
> the FW Admin will stop something like that.
>
> Keep the machine out of the DMZ.
>
> Duane :)

All important stuff there, and I would like to add some considerations.

Looks like you want to run a web server. Apache? IIS?
Some ISP's do not allow any incoming traffic on port 80 - this is to (help)
prevent customers running web servers from what is supposed to be a
consumer, web surfing only connection. If you can not get incoming
connections on port 80 and you still want to run a server, you have to
choose another port such as 8080. You can set the router to 'forward'
requests arriving as x.x.x.x:8080 to 192.168.0.80 (or any specific internal
ip address), port 80 (or any port you choose which your server program will
tolerate)
Remember that x.x.x.x is not a permanent address, so if you will have a
number of people connecting you should get a domain name and use a forwarder
who can handle dynamic dns and alternate ports.
Thus a request to mydomain.com(default port 80) changes to x.x.x.x:8080,
then your router will change it again. If you wish you can e-mail me for the
details.
I would advise that you make sure there is nothing of value on the server
machine.
In my opinion, you don't need a firewall running in that machine, as it is
only receiving requests on port 80, and the server is supposed to be able to
handle any request.
You can also use the DMZ method, or in my case, my ISP allows two (or more)
ip addresses so I have one for the router and another, totally unprotected
one for the web server. The server has its own firewall with specific
instructions and services tuned to those needs. In this case, the modem
connects to a hub, and the router and web server plug into the hub and talk
directly to the modem.

Stuart