Please help with port forwarding

SlasnerSb

Member
Aug 13, 2010
52
0
66
I'm trying to set up port forwarding with my wireless router and having a lot of trouble. My router is plugged into a wireless modem provided by my isp(rogers). I'm using a TP-LINK TL-WR841ND. I go into my routing settings by opening up its ip in my url(192.168.1.1) and go to port forwarding and set up the port that I want to forward- in this case 25444 to play unturned- and in the ip I put my router's ip(192.168.1.1) which successfully sets up the exception but still people are unable to join the server that I'm hosting in unturned. If I put in my IP I get the "not in the same subnet mask" error. please help!
 

KillerBee

Golden Member
Jul 2, 2010
1,750
82
91
be sure to check the computer you are forwarding it to
also has an exception for the same port in it's own firewall - if it has one enabled

If I put in my IP I get the "not in the same subnet mask" error. please help!
-not sure what you are saying here- where are you putting your IP in?
-What is giving you this message?
 
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SlasnerSb

Member
Aug 13, 2010
52
0
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so I'm not forwarding to a particular computer just setting up port forwarding.
I'm in my router settings and I go to forwarding/virtual servers. I click add new and am inputting my routers ip into the heading "IP address". If I input my ip into this heading I get the message "The IP address is not in the same subnet with LAN IP address". I'm doing this so that I can host a server for the steam game "Unturned".

A friend of mine has successfully set up port forwarding under the same port and friends of mine that are able to log onto his server are unable to log onto mine.
 

ch33zw1z

Lifer
Nov 4, 2004
39,040
19,732
146
It needs to go to a particular computer, iirc.

And you have a roger's "wireless modem", does that mean it's a modem/router combo? If it is, you're also using a second wireless modem? If this is hte case, the port will have to be forwarded through both of the devices. Please provide the model #'s of your devices, and the subnets being used
 

RadiclDreamer

Diamond Member
Aug 8, 2004
8,622
40
91
I dont think you are understanding port forwarding fully.

The way it works is when the traffic hits the outside interface of your router (outside interface) on port X you are asking your router to send that traffic to an IP address on the inside network (inside IP eg your 192.168.x.x) with either the same or a different port.

So for example, I want traffic that hits my outside network ip of 1.2.3.4 port 80 to be sent to my inside address of 192.168.1.10 port 1234 or I can leave the same port etc.

Long story short, you have to tell the router where it is sending the traffic, a destination of just your local network isnt going to fly unless you can do a site to site VPN and then the port forwarding isnt going to be necessary
 

JackMDS

Elite Member
Super Moderator
Oct 25, 1999
29,528
415
126
You give the computer that have the Server software a Static IP (or use DHCP Reservation).

You forward in the Router the port toward the static IP, and make sure that the Software Firewall on the computer allow income through the Server port.

As said above your ISP Modem is probably a Modem/Router.

In such case the TP-Link has to be configured like this.

Using Wireless Routers (or Modem/Wireless Router) as a Switch with an Access Point - http://www.ezlan.net/router_AP.html



:cool:
 

Ichinisan

Lifer
Oct 9, 2002
28,298
1,235
136
1. If you don't need the router part of the ISP's modem/router, you should enable "bridge mode" to make it behave like a regular modem. Alternately, you could configure your router to behave as an access point. That means DHCP LAN IP addresses still come from the ISP's modem/router and it's one big LAN for all devices, regardless of which access point your devices are connected to. If your router doesn't have an AP mode, you can disable the DHCP server and connect the incoming connection to one of its LAN ports to have the same effect.

2. If you have to do double-NAT (router behind a router), check to see if the ISP's modem/router has a DMZ option. You can point all incoming connections to your router. In your router, you configure whichever ports you want to forward to your PC behind it.

If you have to do this, see if you can reserve LAN IPs in the ISP's modem/router and reserve one for your router. If the IP on the WAN interface of your router changes when equipment reboots, your forwarding rules will be broken. If there's no reservation feature, adjust the DHCP range so .100 is the first address, then manually assign .99 as the WAN IP address in the WAN/Internet configuration of your own router. That way, it won't change and it won't conflict with any DHCP addresses your ISP's modem/router gives to another device.

In your router, you'll also want to configure a DHCP reservation for the PC/server's LAN IP (or configure a static IP outside your router's DHCP range on the server machine, if you know how).

What model is your ISP's modem?
 
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Ichinisan

Lifer
Oct 9, 2002
28,298
1,235
136
...and what version of Windows do you have on the computer running the game server?
 

SlasnerSb

Member
Aug 13, 2010
52
0
66
Hey guys,
I don't even really know where to start with all of this, it's all like another language to me. I'm going to try to answer the questions I understand and tell you what else I have tried since last posting.

My pc is running on on widows 7 pro-64 bit
the 2 devices I'm using are a hitron CGN3ROG(ISP) and a TP-Link TL-WR841ND

I've since tried setting up a rule in my firewalls outbound that goes port>UDP25444>Allow the connection>Next with all boxes checked

I've tried plugging the ethernet cable into my tower and accessing the modem/router(CGN) settings and port forwarding from there. The ip I type into my url is 192.168.0.1 but if I try to type that into the local ip address heading- http://portforward.com/english/routers/port_forwarding/HitronTechnologies/CGN3ROG/defaultguide.htm - it doesn't work. If I type 192.168.0.13 into the address the rule is able to be added but still no one is able access the server I'm hosting.

Also if I switch the router/modem to bridge mode will it still provide a wifi signal?
 

QuietDad

Senior member
Dec 18, 2005
523
79
91
Two things. You need to set your computer to a static IP address so it doesn't change. Right click on the Network item in your Startup menu or go into Control Panel, select Network and File sharing and in both cases, select Change Adapter settings on your left. Right click on your netowork adapter and pick Properties, select Internet Protocol Version 4 (TCP/IPv4) and select Properties. Change your selection to "Use the following address" and set your IP to 192.168.1.105 or whatever else isn't being used on your network, Subnet mask to 255.255.255.0, gateway to 192.168.0.1 (or the address of your ROUTER) , and set your DNS server to the same.

Then log on to the Rogers supplied Router and forward the ports to this new address. You have to set the forwarding on the FIRST router connected to or part of the modem. You then have to make sure the port is open in your firewall on the computer.

Be aware that Rogers has been known to disable port forwarding in versions of your modem. You MAY not be able to do this. If you can disable the router function of the Rogers modem/router combo, you would then set the port forwarding on YOUR router.

Additional reading can be found at http://www.dslreports.com/forum/r28635861-Extreme-Hitron-cgn3-rog-Port-forwading
 

alkemyst

No Lifer
Feb 13, 2001
83,769
19
81
I doubt you have this issue, but if you are using a commercial router you will need to set up an access list and some other things.
 

Red Squirrel

No Lifer
May 24, 2003
69,693
13,325
126
www.betteroff.ca
Is this ISP router also a NAT router by chance? If yes you have a double NAT. You need to do the port forwarding on both routers.

I have a similar setup as I have not figured out how to not use the ISP provided router and still have the TV work so I just left it in. What I did is set my firewall to a static IP off the ISP router and I forwarded ports UDP and TCP 1-65535 to the firewall.

Then I only need to do the forward on the firewall. In addition to the forward you also need to actually have a firewall rule that lets connections onto that port. Basic home grade routers that don't have much firewall options will probably do this automatically though.

Also this is pretty obvious but I'll mention anyway, both routers need to be in their own IP range.So if the ISP router is 192.168.1.1/24 your own router should be 192.168.2.1/24 or something other than the ISP router.

Ex: scenario:

ISP router IP: 192.168.1.1
Your router IP: 192.168.2.1
Your computer's IP: 192.168.2.100

You want to go to 192.168.1.1's config and forward port 25444 to 192.168.2.1 port 25444
Then go to 192.168.2.1's config and forward port 25444 to 192.168.2.100, assuming that's the computer that is running the game/server.
 

SlasnerSb

Member
Aug 13, 2010
52
0
66
Hey guys!

It is in fact my isp that is blocking my ability to port forward. Since the isp's router/modem is being used by another person(I share internet with my landlord) is there anything I would be able to do to bypass this block from my isp without having to change any settings not related to port forwarding on the isp provided modem.