NAT Port forwarding WRT54G

Hi!
I used several versions of wrt54g, but as fasr as I know none has the following feature:
Outside ip: unknown
Outside port: let's choose for example 14642
Inside ip: a static chosen ip
inside port: let's choose for ftp port 21
So the thing is, that the router forwards all connections from the internet on the port 14642 to the local static ip chosen, and its well known port number 21.
Is there a way to achieve this in WRT54G? v1.1, v5, v6 and v7
If not, will there be an upgrade making that possible?
Thanks.

Gateway configurations are problematic with Mac OS X Server.
(There are many previous discussions around the forums.)
Getting this to work is fussy, at best.
You can also end up with ports unexpectedly open.
An external firewall is usually the easiest choice.

Similar Messages

Setting up router for port forwarding - WRT54G

Hi all. I'm trying to set up my WRT54G wireless router so.i can port forward the relevant ports for my programs. I understand that you have to set up a static ip address before you can do a port forward which makes sense as you do not want to keep changing the ip address for the forwarding settings every time your network refreshes. But I cant seem to have it set up. And is there a rule that the static ip that you set should not be within the dhcp range?
After setting up the static ip and setting up the port forward settings how do I test if the port is being forwarded correctly?
Please assist! Thanks!

IIt;s usually to set the static IP outside the DHCP range like you said. You can use the router's DHCP reservation feature to set a "static IP", and as for your last question, you can find different methods on how to do that by searching the web.
I don't work for Cisco. I'm just here to help.

NAT Port Forwarding Issues

I am running a Mac Mini Server with 10.6.4 and have just the Firewall and NAT services running on this computer at this time.
I have two ethernet connections on this computer. One is the built in adapter (en0) and the other is the Apple USB 100mbit adapter (en2). The en2 adapter is plugged into the internet gateway from my ISP with a static addresss (something like 333.333.333.1) and the en0 adapter is connected to my switch with an internal address (something like 10.0.0.1). I can go out to the internet from the computer and also see it from my internal network, which means that from a network prospective, it is properly configured.
I enabled the NAT service with the Server Admin tool by clicking the "IP Forwarding and Network Address Translation (NAT)" radio button. I selected the USB Ethernet from the "External network interface" and checked the "Enable NAT Port Mapping Protocol" from the options.
After that I followed the directions of adding the following lines to my natd.plist from the /etc/nat/ directory:
<array>
<dict>
<key>proto</key>
<string>tcp</string>
<key>targetIP</key>
<string>10.0.0.123</string>
<key>targetPortRange</key>
<string>80</string>
<key>aliasIP</key>
<string>333.33.333.1</string>
<key>aliasPortRange</key>
<string>80</string>
</dict>
</array>
I also left the top part of the plist file as such:
<key>clamp_mss</key>
<true/>
<key>deny_incoming</key>
<false/>
<key>dynamic</key>
<true/>
<key>enable_natportmap</key>
<true/>
<key>interface</key>
<string>en2</string>
<key>log</key>
<true/>
<key>log_denied</key>
<false/>
<key>natportmap_interface</key>
<string>en2</string>
<key>proxy_only</key>
<false/>
<key>reverse</key>
<false/>
<key>same_ports</key>
<true/>
<key>unregistered_only</key>
<true/>
<key>use_sockets</key>
<true/>
The section I added is correctly located directly above the final </dict></plist>.
Unfortunately, this does not work and according to the directions from Apple this is exactly how you are supposed to be able to enable port forwarding. I have also opened up the port 80 on my firewall to allow incoming requests. When I go to the external IP address for that server it just sits and waits forever and nothing is resolved.
If someone has experience with this issue please advise.

Gateway configurations are problematic with Mac OS X Server.
(There are many previous discussions around the forums.)
Getting this to work is fussy, at best.
You can also end up with ports unexpectedly open.
An external firewall is usually the easiest choice.

NAT port-forwarding and WAN side IP addresses

I have my Airport Extreme setup to forward port 21 to an FTP server on the LAN side of my network. The AE is connected via DSL to my ISP.
When a client from the WAN side connects to my server, the server's LOGS don't list the IP of the client, rather it says the client connected from my assigned WAN IP. For example (fake ip's):
Client ----> AE ----> FTP-SERVER
130.129.12.3 76.99.89.3 10.0.1.2
Log states client connected
from IP: 76.99.89.3
My previous Linksys router, with the same DSL modem and ISP, would report the client as connecting from 130.129.12.3.
Am I missing something in how I am configureing my AE? Or, is this how the AE manages port-forwarding and there's nothing I can do about it?
I used to use firewall rules to control access to the FTP server, i.e. rules set on the server. This can't be done anymore with the AE operating as it does.

Seems to me that the NAT translation in the Airport 802.11n is such that it does not use the incoming IP of clients connecting from the WAN side to a computer on the LAN side. The ingoing and outgoing packets reach their respective destinations, it is just that the AE uses some kind of non-standard routing (at least not that I am used to working with).
This is bad because it prevents the use of some forms of access controls on BSD and Linux servers on the LAN side, TCP Wrappers and iptables for example. This can create obvious security problems when WAN ports are set to forward to such a LAN client. We are already getting hit with robot-like script attacks on our server, this was a problem with our Linksys router, but with the above mentioned tools and scripts we were able to block abusive clients.
Perhaps an Apple can work on resolving this issue in a future firmware release, at least make it an option... Anyone from Apple out there?
jmj

NAT port forwarding

I have recently purchased a Cisco 871 router. In the GUI from the installed software, I have been able to configure which ports are forwarded to a specified IP address within my local area network.
This seems to output a configuration line like this:
ip nat inside source static tcp 192.168.1.123 1000 interface Dialer0 1000
However, I can only do this one port at a time. Is there a function or command that I can use to specify a range of ports? For example, I would like to forward tcp ports 1000-2300 to the IP address 192.168.1.123.
Any help would be appreciated.
(p.s: I think I posted in the wrong Topic previously)

Hi
I own a 2621xm which I have used for port forwarding with NAT overload. from what I can see your options are to forward a port onto the address of your NATed interface with the command:
ip nat inside source static (tcp/udp) your.inside.ip.address portnumber your.interface.ip.address externalportnumber
eg
ip nat inside source static tcp 192.168.1.43 22 194.41.66.2 8022
would allow me to reach 192.168.1.43 port 22 from outside using 8022 or whatever port you specify in the command.
alternatively you could change the interface address to one in the same network so that it is seen as a different devicewith a different ip that only has the forwarded port open.
the final way would be to forward the entire inside address to a new external ip address for example if you have a 192.168.0.0 /24 NATed to 194.41.66.0 /24 through an interface with an ip of 194.41.66.2 you could run the folowing command:
ip nat inside source static 192.168.1.43 194.41.66.43
allowing you to communicate with that host as if there was no NAT. from here you can use the access-list feature to close ports that you don't need.
Hope this helps!
Barry

Wrt160nv2 xbox strict NAT port forwarding/port triggering

I am having trouble stabalizing my NAT on 2 Xboxes. They are both connected to the wrt160nv2 with ethernet cables and I don't know whether I need to do port forwarding or port triggering. Right now, I am using port range triggering, triggered range 53 to 3074 and forwarded range 53 to 3074, and under Setup, MTU size is 1452. I got that off of another post on here but I think they were trying to set it up for an ethernet cable and wireless. I just need to know what to do since both Xboxes are using ethernet cables so both Xboxes can have open NATs.

No need to forward/trigger any ports on the router . Sometimes 2 gaming consoles do not work on a router.
You can try to upgrade the firmware on the router , reset it and reconfigure .

NAT / Port Forwarding WRV200

Hi, I would like to access a Digital Video Recorder (192.168.3.200 port 12088) from the internet (Telenet/Belgium). I'm using a Cisco/Linksys WRV200 (192.168.3.254) to access the internet. I can access the WRV200 remotely (from Internet) and I've created following port forwards: Port 8016-8016 >>> 192.168.3.200 Port 12088-12088 >>> 192.168.3.200 Connecting to the DVR internally is working fine but accessing the DVR from the outside doesn't work for some reason. Any suggestions?
Solved!
Go to Solution.

These products are being handled by the Cisco Small Business Support Community. (URL: https://supportforums.cisco.com/community/netpro/small-business )

Open Nat / Port Forward Xbox

I'm using Cisco Connect Cloud to connect to my E4200 router. I wish to open my NAT type as currently its moderate on all games.
Where the hell is the area to add the port ranges?? Is it even an option on the new connect cloud? If it is, it doesn't make it very easy to find. Would be allot easier if you had a tab/app for "Gaming/Applications" like you did previously.
Any help appreciated.
Solved!
Go to Solution.

It's in Security

Port forwarding is not working on SRP521W

Hello,
I have a problem with incoming traffic.
I opend 3 ports as followed:
I have olso anabbled de remote web menagement on port 888.
From the outside i can access the remote management. but i cannot access my webserver on prot 80 or 443. I have checked with the isp provirder en these port or not blocked.
Can anywane help,
Thanks,

Hi Danny, to my recollection there are not any bugs on the current releases for the SRP for forwarding.
To affirm, you have went to Network Setup -> NAT -> Port forwarding
Also, are you able to log in to the server locally with the LAN IP address using an internet browser for http and https?
-Tom
Please mark answered for helpful posts

Problem with opening/port forwarding some ports but not others

I read the Faq and the first few pages of the forums but couldnt find anything.
I am using the Port Forwarding (WRT54G, Firmware 4.20.7) to my network camera to try to open up ports 80, 554, 5556 and 5558.
Using the network toolbox at Blackcode.com I then check the ports to see if they are open.
Port 554 seems to be open. Port 80, 5556 and 5558 do not appear to be open.
I am using the correct external IP address (I can toggle port 554 open and closed and test that). Toggling Blocking Anon Internet Requests Of/Off makes no difference to the result.
I have checked with my ISP and they dont claim to block those ports.
Any thoughts on what this could be? Is there a way to test if its my ISP? If it is my ISP, is there a workaround?
Thanks for any help.

Are you sure the camera does listen on those port at the time you did this tests? Are those ports open inside your LAN, too?
5556 and 5558 look like RTP ports which may only be active after the channels have been established through RTSP.
Forwarding of port 80 is known to be an issue on various routers as the router allocates port 80 for the web interface. Sometimes it helps to change the remote management port on the router from 80 to 8080 or something else. You may even have to enable remote management to get this active.
If this does not work you have to reconfigure port 80 on your server to a different port if possible.
Message Edited by gv on 08-21-2007 12:28 AM

Port Forwarding with Airport Express 802.11n Utility version 6.1

Hi all,
Quick question, hoping it can be solved with a quick answer
Not sure what I'm doing wrong: I'd like to set up port forwarding for Skype and Transmission, however in the airport utility even when I assign the public/private ports to the ones specified in the respective programs (with the IP address for the machine I am using), if I go into Transmission or onto a port checker website the connections are shown as closed for the ports I have selected (on the public side).
I've made a DHCP reservation for this machine to tie it to a given IP address, and I've enabled NAT port forwarding protocol in the Network options (no default host so far).
Also, in case it makes a big difference, right now I'm connecting to the internet via a Cisco DCP3825 cable modem running in bridge mode, with the AEBS in DHCP and NAT router modes.
Any tips?
Thanks!

Sadly I never got it to work. I called up Apple and they claimed that all the ports are open for the Airport Express, but if I run port scanner in Network Utilities none of the ports I specify show up as open unless I select one of the "Default" port categories like "Windows File Sharing". I told this to the person I spoke to on the phone, and they replied several times in a row that they are not allowed to help set up port forwarding, that they can only provide info on how to open the ports, and that even if the ports are subsequently not opened or forwarded they can't provide any assistance. It wasn't a very good conversation. Unfortunately, based on some of the other disucssions I've looked at in this forum, it doesn't seem possible to do conventional custom port forwarding using this version of the Airport Utility. Hopefully someone will correct me though. Sorry I can't be more help.

WRE expander port forwarding?

People,
I would like to remote access to the WRE configuration page passing thru a WRT54G wireless routing.
I use to do this very easy with other devices going to "port range forward" configuration of the WRT but I don not know at wich port the WRE expander respond ??
Anybody could help me?
Thank´s
Daniel

I kow that is the ip address for an internal network. But le say the WRT54G router has its ip internet access for example 200.81.150.153 If I configure the port forwarding WRT54G setup pointing that service port 1025 redirect to 192.168.1.240 This will permit access from other location using internet browser in this way http://200.81.150.153:1025 so I could see the configuration page of the WRE54G in a remote location via internet.
I use to do this with IP cameras and other devices but I do not know how to do it with the WRE54G a do not know the port ( I´ve put the port 1025 as an example but Indo not really now what is it.) ¡

Can not port forward on WRT54GS v6 "You cannot use the router IP"

Hello, I'm trying to open a port number, but when I try to use my router's IP, the following message appears
"You cannot use the router IP, network, or broadband address"
[IMG]http://i45.tinypic.com/107qond.jpg[/IMG]
My ADSL was working as a NAT behind a NAT connection, so I had to change my Local IP Address to 192.168.2.1.
Router: WRT54GS v6 firmware 1.52.8 (latest) - Bellsouth router: Westell 6100
Microsoft Windows [Version 6.1.7600]
Ethernet adapter Local Area Connection:
   Connection-specific DNS Suffix . : launchmodem.com
   Link-local IPv6 Address . . . . . : fe80::40a9:a76e:61b3:6435%11
   IPv4 Address. . . . . . . . . . . : 192.168.2.100
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.2.1
So, please help me, how can I open ports on my router? =[
PS: I tried to use 192.168.2.100, and even though it lets me use it, it still seems not to open that port... my IP is dynamic.

Generally: NAT behind NAT is a bad idea. There is usually no need for double NAT. Either configure the ADSL router as bridge and use the WRT for your internet connection or set up the WRT as simple access point behind the ADSL router.
It's also unclear to me what is working or not. First I thought you can't set up forwarding at all because you get that error message. Then, in your PS you write you tried to use 192.168.2.100 and that seemed to be possible. The IP address to forward to must be the IP address of the computer to which you want to forward. Thus 192.168.2.100 is exactly the IP address you have to set up. Does this work or not?
Also remember: with double NAT you must set up two forwardings: first on the ADSL router then on the WRT. Port forwarding is necessary to allow incoming traffic through NAT. All incoming traffic arrives on the ADSL router. Thus setting up port forwarding on the WRT only won't do a thing.
It's also not recommend to use dynamic IPs for forwarding destinations. Dynamic IP addresses may change over time and that requires you to adjust forwardings accordingly. It's better to reserve fixed IP addresses (if your WRT supports this) or set a static IP address on the computer outside the DHCP address pool.

Question about port forwarding 2 xbox 360s to get rid of NAT on one of them

I have a xbox 360 with the official xbox 360 wireless antenna that is already set up for port forwarding and my NAT is fine. My brother has a xbox 360 and he has a NAT problem but he doesn't have a official xbox 360 wireless antenna, he hooked up his laptop to his xbox 360 via ethernet cable and is using his laptops wireless card for the connection and he gets a NAT error when he tests his connection to xbox live. Is it possible to port forward 2 xbox's? I'm sure I have to set up some type of static IP for him but the thing is that I'm not sure what IP address to assign to him. If it is possible, would he have to use a static IP address on his laptop since he's using that for a wireless connection? If this is at all possible could someone post some step-by-step instructions on how I should set this up? Below I will give you what I have set up for my xbox 360 to open up my NAT I just want to know what static IP I can use for him. Can I use just any numbers?
In my port forwarding tab in my wireless modem I have the following:
and in my xbox i have the following settings:
IP address: 192.168.1.20
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.1
Primary DNS: 4.2.2.2
Secondary DNS: 192.168.1.1
I have all that entered for myself and my xbox NAT is open. I just need to set up his xbox if it is at all possible. Please help!!!
P.S. My router is a WRT54GS v2.0 with updated firmware, just incase you need that info.
Message Edited by nourotherleft on 01-08-2009 03:20 PM

ok that still didn't help me.... he still has a NAT problem.... I don't....I went to port triggering and added the ports that you described but it didn't open his NAT... If the connection is going through his laptop(acting like the xbox 360's wireless antenna) wouldn't either his laptop or his xbox need a static ip? because I had to set up my xbox manually with the following addresses:
ip: 192.168.1.20
subnet mask: 255.255.255.0
default gateway: 192.168.1.1
primary dns: 4.2.2.2
secondary dns: 192.168.1.1
so in essence wouldn't his laptop need to be configured with some kind of static ip or something? because if he puts in what I just stated into his xbox it wont connect at all because I guess the ip's are conflicting....so what do I do now?

WRT54GS v6 - Port Forwarding Field Colors (Yellow vs Green)?

WRT54GS v6, Firmware 1.52.0
Can anyone explain the color coding for the text field backgrounds under the "Port Forwarding" section?
I have severally seemingly normal port forwarding entries with green backgrounds, and then one entry whose text fields are all backed in yellow.
My assumption is that the 'yellow' entry is not working correctly.

normally there is no colour coding involved in Port Forwarding....may be what you are thinking is correct....

NAT Port forwarding WRT54G

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