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New Poster

Comcast Internet Port Forwarding

Is port 80 blocked by Comcast?

Expert

Re: Comcast Internet Port Forwarding

Nope.


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I am a Customer Expert volunteering my time to help other customers here in the Forums.
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New Poster

Re: Comcast Internet Port Forwarding

I tested by these two sites:

http://canyouseeme.org/

https://www.yougetsignal.com/tools/open-ports/

and my own site

, they write that port number 80 is closed on 73.246.58.94 (my IP).

What am I doing wrong?

Contributor

Re: Comcast Internet Port Forwarding


@vemix wrote:

I tested by these two sites:

http://canyouseeme.org/

https://www.yougetsignal.com/tools/open-ports/

and my own site

, they write that port number 80 is closed on 73.246.58.94 (my IP).

What am I doing wrong?


Do you have port forwarding enabled to send port 80 traffic to your computer's internal IP?

 

For example, my public IP is 174.xx.xx.xxx, but all my devices fed by my router get 192.168.1.x addresses.  Say I have a server and it has a static IP of 192.168.1.5, and I want any incoming web traffic to hit that server, I would set my router to forward incoming port 80 trafffic to 192.168.1.5.. 

 

another option, recommend using only if you have your pc/server locked down tight is to designate that machine's IP as the DMZ host - that will open that machine to all incoming traffic and subject to constant probing by fools looking for any unsecured service, so do that only if you know what you are doing security wise.

New Poster

Re: Comcast Internet Port Forwarding

On Comcast Modem, I clicked Port Forwarding, ADD SERVICE, chose Common Service: HTTP, and chose Connected Device: 10.0.0.11 where Apache HTTP Server is running. After this, I clicked Save.

Then, If I navigate http://10.0.0.11/, I see response from my web site but if I navigate http://73.246.58.94/, I see:

This site can't be reached... and so on.

Everything was working before the Comcast guy replaced the modem.

Wht am I doing wrong?

Contributor

Re: Comcast Internet Port Forwarding

you're using a gateway.. I think you'll need to set the firewall to unblock port 80.. I don't have a gateway so I can't say if you can do it with the firewall at High or Medium, you may have to use Custom to allow port 80

Expert

Re: Comcast Internet Port Forwarding

Try using "Low" on the gateway. It's normal compared to other third party firewalls. Anything higher on their gateway devices is frantic / overkill.



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
New Poster

Re: Comcast Internet Port Forwarding

In Modem I use Custom Security which allows everything and my Windows Firewall allows port 80.

Contributor

Re: Comcast Internet Port Forwarding


@vemix wrote:

If I navigate http://10.0.0.11/, I see response from my web site but if I navigate http://73.246.58.94/, I see:

This site can't be reached... and so on.

Everything was working before the Comcast guy replaced the modem.

 


is that 73.246... IP address still your IP address?  if using a gateway, replacing that will get you a new IP address.

 

double check to make sure you have the correct IP.. http://www.ip-adress.eu/ or any number of sites can tell you.. make sure you are using the correct address both to access and in your web server's config..

 

finally.. is the computer you have the web server on directly connected to the modem? if not what does it connect to?