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Wewalsh
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# Posted: 22 Dec 2004 10:18
I trying to connect a webserver to a Comcast cable modem for connection from the internet. This device controls the building BAS (Building Automation System) The box supports DHCP and DNS however these servers are not available. The site has a Comcast cable modem with (1) RG6 connection and (4) RJ45 tcpip ports. Can Comcast assign a static IP address to one port and forward the port to 80 so that I can ping the box from he internet?
Any help would be appreciated>
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sfunk1x
Member
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# Posted: 23 Dec 2004 13:41
I doubt comcast will give you a static IP, but if you were to put some sort of router or firewall (preferably linux based) directly on the cable modem connection, chances are that when the IP lease is up, it will do it's darndest to grab the identical IP address. In which case you could run a web server or whatever and register the IP to a particular domain name without problems.
There are also various services that will control this for you, as I have done a quick search and found them. All you really need to know is your ip address, and the port in which the web server or whatever other service is runnin gon, and you're good to go. I have never seen comcast try to shut down prots or ip's because of a particular service running, but that's not to say that htey haven't in the past.
been running my webserver for over a year now...
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Anonymous
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# Posted: 24 Dec 2004 13:28
I have a webstie running off my comcast cable for about 4 months now. My IP address hasn't changed yet.
I am using a distro of linux called clarkconnect. It will act as webserver, dhcp, router...
I recommend that. Just unblock port 80 from the cc box.
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Anonymous
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# Posted: 19 Jan 2005 15:42
so if i simply apply my auto ip address as a static in my router settings (netgear wireless g router) and enable web services on my system i should be able to access it? or do i need to do something with the cable modem? also, if i'm using dhcp and nat will that pose a problem?
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Anonymous
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# Posted: 9 Feb 2005 14:30
no, what anon said will not work for anyone trying it.
In most areas, except for the sticks, Comcast does a from of authentication vis DHCP, so if you don't acquire the IP via DHCP it will not work. I have been looking into this for years as I would love to implememt something like this at work as well, but to no avail. If you statically put in that DHCP address, gateway, and DNS, it will not work. I liked it better when it first came out and you could use any address within that subnet, but all good things come to an end.
Brom
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Anonymous
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# Posted: 16 Feb 2005 14:36
My router (Netgear Wireless-G, forget the model number) supports updates to dyndns.org. So you can get a (free) yourname.dyndns.org that will point to your ip, and will automatically be updated by the router when your ip changes. dyndns.org also provides software which does the same thing, never tried it though. Good luck.
Skeeedunt
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Anonymous
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# Posted: 13 Mar 2005 02:25
With my cablemodem I get a new dynamic IP once a day. I used dynDNS to handle this and to connect to my home webserver.
Now I have written an own dynDNS like service just for fun that finds your home PC on the net, beacause dynDNS dropped me every 3 months without connection.
I would be glad if someone gave it a try, it's free:
see http://www.superspider.net/wyss/index.php for more infos.
Stefan
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Anonymous
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# Posted: 12 Apr 2005 05:07
I definitely recommend using the dynamic dns route. Consider http://zoneedit.com. It's free for up to 5 domains. You will need to set your server's local ip to static but with the dynamic dns deamon running on your server, it will detect a change to your router ip and update the dns entry on the zoneedit dns server instantly. that way you don't have to change the ip setting in the dns everytime you get assigned a different ip. just remember to forward port 80 (or whatever port you use for http) on your router.
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Gam
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# Posted: 1 Jun 2005 19:21
Ya I have 10 commercial IPs from Comcast and they all changed today after 1.5 years. Jacked all my routing/mx's and forwards.
I need a static ip block in TN with 10+ GBps.
I despise Comcast. Why can't they send an email out in advance?
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Anonymous
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# Posted: 13 Jun 2005 16:04
What is one supposed to do with Multiplayer games then, if ones ISP has dynamic IP?
Nearly all multiplayer games need a Static IP to be able to host. There is no server that I can name to be able to play these.
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Anonymous
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# Posted: 14 Jun 2005 14:35
TZO.com is way more reliable
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Anonymous
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# Posted: 17 Jun 2005 16:29
The problem is that many multiplayer games accept only an IP address, not a name.
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Anonymous
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# Posted: 15 Jul 2005 20:43
Hello,
I recently subscribed to comcast residential internet, it works good. Then I registered a Domain name , worked fine until my comcast ip address changed because they only offer dynamic ip addresses to residential accounts, so i called them , after being forwarded at least 6 times and disconnected once or twice and an hour on the phone I finally got an answer from a rude sales rep stating "it is company policy to not offer static ip addresses to residential accounts" WTF does that mean ? I probed him for a REAL answer and he did not budge , the truth to the matter is to get a static ip address they want you to upgrade to a commercial account and pay $120+ per month. What Jerks. In conclusion i would reccomend boycotting comcast internet and go with someone who has decent technical support with real answers. Yes it is possible to still register a domain and keep upating your ip , or use a automated tool to do so , but it is still a pain in the ass. Therefore comcast can go suck a lemon as far as i am concerned.
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Anonymous
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# Posted: 10 Aug 2005 02:34
does comcast really offer static IP ?
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nomara
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# Posted: 15 Oct 2005 12:54
comcast does offer static addresses but only if you have a commercial account and are prepred to pay
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janga
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# Posted: 28 Nov 2005 14:26
Try using one of the dynamic DNS websites like dyndns.org or no-ip.com. these websites are designed for users like us. i have been using no-ip for the last 2 months. No-ip has a small software tool that runs on linux/windows on you local network and continually syncs with my dns provider to notify of any change in my IP. I went for no-ip.com not knowing that dyndns.org was also available and that my router actually supported it internally so that i would not have to keep this tool running on my computer. the tool itself is pretty lightweight and is good enough for me.
hope that helps.
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Anonymous
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# Posted: 1 Dec 2005 19:26
I dont know where most of you are located but I have Qwest DSL and a block of 8 IP address (5 usable) all for around $55 a month.
http://my.qwest.net/nav4/solutions/pwr_tools/static_ip/product_info/st aticip.html
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Anonymous
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# Posted: 2 Dec 2005 09:54
must be a commercial customer comcast in order to get IP adresses. $95.00 month.
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Anonymous
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# Posted: 9 Feb 2006 22:17
I have had Comcast cable for about 4 years now, never had my IP changed. It could do with the fact that I have a router that is always on and my computers are never turned off because i run a web server. I think as long as you have a connection to the internet in some form, like a router with a live computer connected to it all the time your IP shouldn't change. The easiest thing to do would be buy a router, they are cheap now days 20 bucks all the time in sunday's ads, after rebate of course. A worthy investment if you are trying to run a server of some type i think.
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Anonymous
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# Posted: 14 Feb 2006 15:54
I pay 80 bucks a month for a commercial account and static ip from comcast
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Shnerdly
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# Posted: 13 Mar 2007 11:43
I just got a quote from Comcast in Minneapolis, Minnesota. Today, March 13, 2007. Here's what they have available for Static-IP.
6mb download - 768k upload - 2year contract - $79.95 per Month
8mb download - 1mb upload - 2year contract - $149.00 per Month
8mb download - 2mb upload - 2year contract - $200.00 per Month
All these prices are for 1 static-IP
For a total of 5 Static-IP's add $5.00 per month to the above prices.
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Shnerdly
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# Posted: 13 Mar 2007 11:51
I forgot to add that I have had Comcast for about 7 years. Actually they were RoadRunner when I first started with them.
My IP was the same until last summer when they revamped there servers. I run a Linux box for a router and web server that is on all the time. Since the revamp, my IP changes at least once a week. Sometimes every day or so.
I think it's intentional to prevent people from hosting web sites on their network without paying commercial prices.
They should take a lesson from Europe. There, if you have broadband you only need to ask for a static-IP and they give it to you for no additional charge Here in the US everyone wants to charge extra for every detail of everything.
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mrat1tude
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# Posted: 18 Jan 2008 18:26
Just spent over an hour on the phone w/ a Rude commercial rep from Comcast. She insisted that only commercial acccounts were entitled to a static IP address. She was indignamt whem I explained I needed it for security cameras. She said I "did not have a legitimate need for it" Asked if I needed to have them" I asked if she had an alarm system. She did but still insisted it was OK because she did not need a static IP address. What an a_ _. Who is she to judge me. I later got a former tech from that dept who said the reg ip doesn't usually change often and there is software to monitor changes and report new ip address to you. Big gamble to leave Millennium Cable who provided free static ip adress.
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mxkid98
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# Posted: 26 Aug 2008 15:34
I'm also trying to get my IP camera to work over Comcast...with no luck. I've registered a domain with www. no-ip.com but stll can't remotely access the camera inside my house. I have a model # AVI201 IP camera hard-wired with 80ft. of Cat5e directly into the cable-modem (Scientific-Atlanta, Inc. #DPC2100 R2). Baesd on the previous posts I've read, I assume I will need to get a router. Any reccomendations on the system architecture would be greatly appreciated!
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Shnerdly
Moderator
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# Posted: 26 Aug 2008 16:22 - Edited by: Shnerdly
mxkid98
I'm not too sure the IP camera can function when connected directly to the modem. The ones I have setup require a setup from a computer to get the correct internal IP and subnet. If you do that setup and then move it directly to the modem the IP and subnet are now wrong.
You should use a router to assign the IP and subnet to the camera. Then forward the necessary ports in the router for the camera. Should be port 80 to the camera.
What make and model modem are you currently using. This could be blocking the camera as well.
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mxkid98
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# Posted: 26 Aug 2008 16:59
Shnerdly, thank you for the reply. The cable-modem is the basic model that Comcast sets up with the service (DPC2100). The one I have now is made by Scientific-Atlanta. I do believe that I will have to reconfigure the setup, using the instructions you provided in "Basic Networking Help." I do have a LinkSys wireless router, and will have to work on the port re-directs. This will be my first attempt at networking and IP.
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mxkid98
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# Posted: 27 Aug 2008 11:37
Shnerdly
Do you have any basic information to help me with "port forwarding?" I was able to set my router up last night and view the IP camera locally, but when I tried it remotely (from my PC at work)...no luck. I assume that I will need to configure the ports, but don't know how. I was able to access the LinkSys routers settings, but didn't modify the ports.
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Shnerdly
Moderator
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# Posted: 27 Aug 2008 21:59 - Edited by: Shnerdly
IP cameras are actually cameras with a built-in web server. You need to make a note of the IP address of the camera when you set it up.
Then in the router you need to find the section for Port Forwarding and setup TCP port 80 to forward to the IP that the camera has. Port 80 should be the default port for the IP camera. Make sure you forward the TCP port. The UDP port won't do the job.
Once the port is forwarded you need to know what your external IP address is. This link will tell you what it is. Then from wherever you are attempting to connect to your camera you would type http://xxx.xxx.xxx.xxx in the address bar of your browser. The xxx's would be your external IP address
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Chris1984
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# Posted: 25 Sep 2008 10:14
Help - I switched my internet over to comcast, now I cannot get both compters to get online through my router. It worked with ATT, and now it dont. Any ideas?
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Helpdeskguy
Member
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# Posted: 25 Sep 2008 10:38
You can try the basic reboot process.
1.turn off all your pc's
2.reset your router to factory default settings by holding in the reset button for about 10 seconds.
3.unplug your router from the power.
4. with your pc's and router turned off reset the cable modem by pressing the small reset button, and wait about 3 minutes.
5. plug in the router and wait about 1 minute.
6. boot up your pc's and see if you can access the internet.
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