Port forwarding feature in Linksys VoIP adapter

Hello,
I tried to use the port forwarding feature (in the Application tab), but could not get successful. I need to telnet to a Cisco router behind my Linksys VoIP Adapter, uses starting port=23, ending port=23 and ip is the Cisco router ip.
Let me know if I am missing anything. I tried the DMZ feature too, but still the same result.
When I am trying from outside I get this:
termserver>telnet 75.156.137.224
Trying 75.156.137.224 ...
%Connection refused by remote host
If I configure the Cisco Router with NAT, I have no problem connecting from outside. I want the Linksys as the gateway, not the Cisco router. Any help would be highly appreciated.

What is the model number of your Linksys router? Make sure that you have the latest firmware on the device. Also make sure that you forward TCP port 23 for the IP address of the Cisco router coming from the DHCP server of the Linksys router or if you have a static, it has to be on the same subnet as Local IP address of the Linksys router.

Similar Messages

Linksys E1200 Router not saving Port Forwarding changes

Hi!
I am currently attempting to port forward on my Linksys E1200 Router and am not succeeding in saving my settings. I am attempting to open port 25565 though both Single Port Forwarding and Port Range Forwarding, and whenever I click the "save settings" button, I receive a full window message stating that my changes have been saved. Upon clicking this, I return to the previous screen whereupon my changes have been erased and my port has not been forwarded. Can anyone assist me with this? I've searched for hours through forums and tech help websites, but I can't find anyone else with this issue.
Issue:
Linksys E1200 Router not saving Port Forwarding changes.
I have tried:
-Restarting the Modem
-Restarting the browser
-Restarting the computer
-Tried to Port Forward through both the Single and Ranged Port Forwarding

Hi there. You can try another browser or a different computer. If it is the same thing, upgrade the firmware of the router. You can refer to this link on how to http://www6.nohold.net/Cisco2/ukp.aspx?vw=1&docid=0a6881b90224439b92c8d8f19ca42e5d_21511.xml&pid=80&...

I will Paypal you $100 if you can resolve this Port Forward problem

Believe me when I tell you, If you are the person who fixes this problem, I will GLADLY Paypal you $100.
This is so unbelievable. Short story is, after 12 hours of paid support through Support RIX, 6 hours with TWC support, and 4 different modems there isn't a single person in these groups that can get ports forwarded on my Linksys E4200 router.
I am running a fresh copy of windows 7 with all updates and no anti virus installed. I purchased a Motorola ARRIS SURFboard modem 200 series DOCSIS 3.0 so I have no double router issues. Before I was using the TWC moden/routers in bridge mode.
I have no problem setting a static IP or configuring port forwarding. It doesn't matter if I have windows firewall on or off. I can't get an outside port checking website that can verify an open port.
I am trying to play Battlefield 4 using the port forwarding request they provide.
If I run a local port check program on my computer it will confirm the ports open. Ok, Fair enough. They tell me the outside port checking utilities will say the port is closed unless I am running the program that uses these open ports.
SO I run the game and check and it always says port closed. One of the ports I want to open is 80. It has to be open to get internet anyway but it still shows closed using the online port checking websites.
I connected the computer to the modem. No router. I keep getting ports closed or filtered when I check through 6 different port checking sites. Leads me to think their is some kind of block in the ethernet card software.
Its a Realtek PCIe GBE Family controller with a driver date of 8/26/2014. Latest one I could find.
I think its an ethernet card filter. Just my thoughts. Here is the current adapter card settings.
Advanced settings on Ethernet card
Auto Disable Gigabit/ Disabled
Flow Control/ RX & TX Enabled
Green Ethernet/ Enabled
Interrupt Moderation/ Enabled
IPv4 Checksum Offload/ RX & TX Enabled
Jumbo Frame/ Disabled
Large send Offload v2 (IPv4)/ Enabled
Large Send Offload v2 (IPv6)/ Enabled
Network address/ You can check the box for Value and add one. Currently its checked to Not present
Priority & VLAN/ Enabled
Receive buffers/ 512
Receive Side Scaling/ Enabled
Shutdown Wake-on-Lan Enabled
Speed and duplex/ Auto Negotiation
TCP Checksum Offload (IPv4)/ RX & TX Enabled
''''''''''''''''''''''''''''''''''''''(IPv6)/ RX & TX Enabled
Transmit buffers/ 128
UDP Checksum Offload (IPv4) RX & TX Enabled
'''''''''''''''''''''''''''''''''''''''(IPv6) RX & TX Enabled
Wake on Magic Packet/ Enabled
Wake on Pattern match/ Enabled
WOL & Shutdown Link Speed/ 10 Mbps First
I used a port tester downloaded from PCWinTech.com v3.0.0. It says the ports are open. When I close port 80 it says port 80 is closed. My problem is nothing outside my network can confirm an open port. It always states port closed.
The game I am playing is Battlefield-4. I have played all of the campigns without any problem but once online it crashes. The BF-4 community says I need to open 5 single ports and 5 port ranges. This is what I am trying to do.
We have tried an ARRIS router modem, a Ubee router modem (both in bridge mode) and are now using a motorola modem. All with the same problem. We checked the ports during game play and they all say closed.
I will post pictures of my current router settings.

What model router do you have?
What Firmware version is currently loaded?
What region are you located?
What is your current model ISP modem your using now?
What ISP Modem service link speeds UP and Down do you have?
Check cable between Modem and Router, swap out to be sure. Link>http://en.wikipedia.org/wiki/CAT6 is recommended.
Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask.
http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=88e63d78588142e6bb68e22d7faf2046_Configuring_the_M...
Router and Wired Configurations
Setup DHCP reserved IP addresses for all devices ON the router. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting and maintain consistency for applications that need to connect as well as mapped drives.
Ensure devices are set to auto obtain an IP address.
If http://en.wikipedia.org/wiki/Ipv6 is an option on the router, select Local Connection Only.
If you set up port forwarding, disable uPnP and test.
When you check for port status, you have to be actively using the port before you scan check as you may get a false negative if your not using the port. If your using the port then check the status, you should get an accurate result.
I would try using Port Range Triggering instead of PF and set up the port as follows for your PC that your gaming with:
0 thru 65535. A bit less hassle to set up then all those different port rules.
PC 3rd Party Security Software Configurations
Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired LAN PC while testing.
Disable any downloading client software managers, i.e. Torrents or similar.

Time Capsule disconnects internet when using web server through port forwarding

My current config is: 2TB Time Capsule running 7.6.3, Mac Pro running Lion (10.7.5), MacBook Pro running Mountain Lion (10.8.3), and a couple of MacBook Pro Retinas running Mountain Lion. My current ISP is Comcast.
I have the Time Capsule set up to port forward port 80 to the Mac Pro for the purpose of running a web server. Most of the traffic is shuttling fairly large m4v files back and forth to work (work product from video editing work). I can reach the webserver on the Mac Pro just fine from the outside world, and can list files in the directory just fine. When I initiate a download (via right click on a link, "Save As..." or whatever), the Time Capsule reports that the Internet has been disconnected, and all machines inside my network lose access to the outside world. I have to either power cycle the Time Capsule, or disconnect/reconnect the Cat-6 cable between the cable modem and the Time Capsule to re-establish the connection. Interestingly, the download continues and completes on the other end without issue (so, the connection is actually still there!).
Before switching to Comcast, I was on AT&T Uverse - Uverse includes a router, so I had the TIme Capsule set up in Bridge Mode. That worked fine. I also have an older 500GB 1st generation Time Capsule. I set it up with the same config as my 2TB TC, and it shows the exact same behavior - internet disconnects upon initiating a file download through a forwarded port. I then hooked the Mac Pro up directly to the cable modem. I can initiate a download without issue, and I continue to stay connected to the Internet without problem. Called Comcast anyway - they report no errors on the line, but reset the whole device chain anyway. No change in behaviors.
I tried downgrading the Time Capsule software to 7.6.2 (the earliest version that came on it). No dice, same behavior.
So... I called Apple. Complete and utter FAIL. Apple Support reports that they have no training in the port forwarding features of the Time Capule or Airport products, and cannot help me resolve the issue because of that. So, I have a $300 router that apparently cannot perform a simple routing function (download through a forwarded port), that I cannot troubleshoot (because Airport software v7 is an epic fail in that regard), made by a company who cannot support it - and everything this $300 device is doing can be done by a $50 device with a $100 external hard drive?
Do I understand this situation correctly? What have I missed in trying to troubleshoot this thing?

Apple Support reports that they have no training in the port forwarding features of the Time Capule or Airport products, and cannot help me resolve the issue because of that. So, I have a $300 router that apparently cannot perform a simple routing function (download through a forwarded port), that I cannot troubleshoot (because Airport software v7 is an epic fail in that regard), made by a company who cannot support it - and everything this $300 device is doing can be done by a $50 device with a $100 external hard drive?
Do I understand this situation correctly? What have I missed in trying to troubleshoot this thing?
Excellent summary.. I think you have covered all the salient points most thoroughly.
Port forwarding on the TC I would put into the category of "epic fail"
I have a nasty feeling it just doesn't work in many cases. Clearly from your situation the port is forwarded correctly.. it is the actual download that is causing the device to crash.. which is probably not the port forwarding itself that is at fault but rather the external link and opening another port for the download to happen.
Many of the issues were caused by using icloud and btmm.. which would work a lot better btw. Although the hassle there is needing to offer that as a service to any Tom Dick or Harry.
Let me suggest a work around or other things to try.
I also have an older 500GB 1st generation Time Capsule. I set it up with the same config as my 2TB TC, and it shows the exact same behavior - internet disconnects upon initiating a file download through a forwarded port.
Use 5.6 utility.. more info below. And take the firmware of this unit (Gen1) back to 7.5.2 (before icloud mess ups in 7.6).
You can go back to 7.5 firmware also in Gen4 TC if it is more than about 14months old.. Simply hold down the option key when you select firmware and the old versions will show up. If your TC came with 7.6.1 (the 7.6.2 was withdrawn as it was even bigger failure than 7.6.3). then you cannot go back.
You might also find downloading via http is not as reliable as using FTP.. FTP is a better and more efficient protocol. It should be no problem to setup ftp server on the mac pro to allow download via ftp even with a browser.
But in the end.. your $50 router suggestion.. well perhaps a little more than that.. $80-100 will work very well.. also this router can be setup with a Hard Disk and offer the files to the internet via FTP.. without needing full network access to your internal network.
How to load 5.6 into ML.
1. Download 5.6 for Lion.
http://support.apple.com/kb/DL1482
Click to open the dmg but do not attempt to install the pkg.. it won't work anyway.
2. Download and install unpkg.
http://www.timdoug.com/unpkg/
Run unpkg on the desktop.. it is very simple.. drag the AirPortUtility56.pkg file over to unpkg.. and it will create a new directory of the same name on the desktop.. drill down.. applications utilities .. there lo and behold is Airport utility 5.6 .. drag it to your main utilities directory or just run it from current location.
You cannot uninstall 6.1 (now 6.2 if you updated) so don't try.. and you cannot or should not run them both at the same time.. so just ignore the toyland version.. the plastic hammer.. and start using 5.6.. a real tool.
For screen shots see this post.
https://discussions.apple.com/thread/4668746?tstart=0

Port Forwarding To Two Macs with Port 22 limitations

This is another port forwarding/port 22 issue and I've look around and not seen an answer to my specific problem. I work for a business that has an in-house ad system that runs on a Mac Mini. I have been accessing that Mac Mini remotely because we set up port forwarding through the Linksys rounter that is at the business using port 22. This is the only port that works for this connection to the mini and the software.
We are now adding a second Mac Mini to send the ads to a different set of monitors. I can't set up port forward to the new mini on the same port so I don't know how to connect to this mini remotely. Is there a way to get into the first mini through port 22 and then somehow communite to the second one through the first? Is there another way to do port forwarding...or have the linksys router switch from one mini to the other when a request comes in? There will only be one remote computer trying to reach either Mac Mini so there will never be simultaneous traffic coming in. Any help would be appreciated!
The linksys router is critical to the business becasue a host of other devices are forwarded though it as well.
Thank you.

klara wrote:
Having set up my IP camera with HH4 successfully, I've now got another one and would like to set it up as well. I gave it a unique, static IP address which my router can see fine. When I try to set up port forwarding, I get a message saying:
"The game or application you’ve selected conflicts with an application (IP Cam 1) you’ve already assigned to another device. Please remove the other application or select the same device."
I am not being given the option to select the same device.
I'm now wondering if port forwarding to two identical devices actually works in principle with HH4? Has anyone else done this?
If in the Home Hub 4 A you go to
Advanced Settings
Firewall
Port Fowarding
Manage Games and Applications
You get the following statement:
"Each game or application can be assigned to only one device on your home network"
I would think that the only way round your problem is to have each Camera running a different application or the same application with a different name.
Does the remote browser app need to know the application name or just the device name ?
If you think about how Port Forwarding needs to function you need a way whereby the remote user needs to be able to tell the Hub what Camera to talk to.

Which port is need on Linksys QuickVPN access

I want to set up the VPN service on remote site but it site have only one public IP available.I think can I set up the self own Linksys RV042 router in the ISP provided router LAN port and ask ISP use port forwarding to my Linksys RV042 router. So I want to know which port is need on using Linksys QuickVPN to access RV042 VPN client-access. Are there are port 443 and port 60443?
It is existing setup on ISP Router
LAN: 192.168.1.1/24
WAN: only one public IP provided
I will set own RV042
LAN: 172.16.0.1/24
WAN: 192.168.1.50/24 & gateway 192.168.1.1
& ask ISP set port forwarding on ISP provided router forward port 443 & 60443 to 192.168.1.50
Is it possible to provide VPN access to RV042?

Ive got a WRT54GS v6 - Firmware 1.52.5
Ive run out of port forward slots, Ive tried to use the port triggering but it always says
"port forwarded range is overlapping with other port trigger records"
Ive checked and no ports are overlapping, one person suggested that I try just using the forward slot instead of the trigger slot as well. When I click save changes it says succesful but then when it returns to the port trigger page everything is blank. no changes made.
Everything has worked fine until this, im trying to get EA Games "Command and Conquer: Red Alert 3" to work online but the router is not co-operating very well.

Port forwarding RV016

Hello to all cisco experts!!
Hi guys im new here, I need ur help, I've got a Cisco small business router RV016. At first I have no problem in port forwarding because our first ISP install with simply DSL broadband modem, for some issue on our first ISP, our company acquire a new DSL connection on a different ISP. My problem now is our second ISP install to us a DSL modem with 4 ports built-in router so how can I forward a port for our Remote Desktop Connection (RDP) in our Cisco RV016 while the Public IP address is in the Second ISP router. I know I can use the port forwarding feature on our Second ISP router, but I would like to use the port forwarding in our Cisco RV016 because we also use the the VPN client access feature in our Cisco RV016.
Is there a way to solve my problem guys? I highly appreciate all your helps, thanks in advance.
Ricardo Trupa

Ricardo,
My name is Ismael. Iam with Small Business Support center and do appreciate you reaching out to us. From what you have described to us is that you having issue with port forwarding with RDP (3389). I am also understanding that you have a Modem/router combo from ISP and then the RV016.
For port forwarding to work, you need two rules one on your modem/router and one on your RV016 . So its source ip address will be the LAN of this modem and destination is WAN ip address of the RV180. Another rule is then configured on RV180 WAN pointing to LAN of the internal device you trying to reach. So its source ip will be the WAN on RV016 and destination will be LAN ip address of the internal device you trying to reach. This type of double port forwards can be complex and unstable. So if your network allows for configuration changes then you modem can be set to bridge mode, to simplify things and have them working for you all the time.
The single port forward can still be done, but it would require for your ISP to fully bridge your Modem. This will allow for RV016 to receive a public ip on WAN1. Once bridged only one rule is required on your RV016. Hope this helps you.

RV180W loses port forwarding rules when switching WAN connections

We have a backup WAN connection in our office, but we switch this connection manually on our RV180W when the primary goes down. Our normal connection is ADSL with PPPoE, and the backup is Cable with DHCP.
However, we also have some port forwarding rules for our VoIP PBX (UDP port 5060) as well as SSH, and these rules seem to stop working completely when we switch our WAN connection to our cable connection. We can still surf the web from our workstations, but our incoming phone calls and SSH connections all cease to work completely. The problem does not persist after we've switched back to our normal ADSL connection.
This behaviour is completely bizarre and suggests that there's some kind of bug in the Cisco RV180W.

helm,
I'm sorry, I wasn't clear which IP address renewal I am speaking about.
I believe that the problem is caused when the router renews the WHS's local IP address (192.168...). My WAN IP address remains unchanged througout the tests I performed and the problems I experienced.
The very act of changing the local clients' lease time in the router's configuration causes the forwarding to be lost immediately. (I am gusessing that when the lease time is changed, the router immediately renews the lease and begins a new countdown.)
(In fact, I might go as far as to say it is a bug in the firmware, but I haven't done enough testing to nail it down.)

RV042 Port Forwarding

Router has latest firmware. WAN1 connected, WAN2 not connected
RDP 3389 & 3390 are forwarded and functioning correctly. Port 8080 functions correctly when configured for Remote Management. I have Port 8081 functioning as Remote Management currently. I forward Port 8080 and it still remains blocked at the router? I have tried all HTTP/HTTPS ports and they are blocked at the rounter as well

Hello,
Thank you for your reply,
As a first step i am glad to know that what is done is enough and there is no step(s) missed.
On my first comment, i mentioned that i am using the Linksys router on dual mode and not DMZ mode; does that have any relation with the current problem?
Concerning firewall, firstly i disable the firewall on the Linksys router.
Second, i configured a laptop with the application Xerver to act as a webserver on port 80. i tested accessing this laptop through a lan switch and test was ok.
i tried the same test through the Linksys router where i connected this webserver laptop to a one of the lan ports of the Linksys router, and with the same config of port forwarding on the Linksys (i just modified ip address of the webserver to be the ip of the laptop) and tried to open http access through internet explorer to the ip of the Linksys router and test was negative. Test failed.
So the problem is not related to a misconfig on the isa(firewall,..)
So this indicates that there is a problem specifically in forwarding traffic from wan interface to lan interfaces. but i am not able to identify where this problem is.
What do you advise?
note: when i do enable remote mgt for the rv router, i get to the authentication screen of the rv router where i should enter username and password.
thank you again,

Cannot Port Forward RV042 in "Router" Mode

I use an RV042 exclusively as our VPN host to our main network for branch office connectivity. The RV042 is configured in Router Mode and does not provide Internet / NAT access to the LAN. I would like to add an additional role to this unit by having it Port Forward web requests to an internal Web Server. It appears that the router cannot do Port Forwarding while configured in Router mode; can you confirm this to be true? Is there a work around or an alternate configuration that would allow me to port forward web requests from the Internet to my Internal Web Server and still keep the RV042 in Router only mode?
Thanks

Mike,
The port forwarding feature only works in the context of NAT. This is true for all small business routers.

WRT100- VOIP port forwarding/"opening?"

Hi all,
I'm trying to get two VOIP phones (actual phones, not soft phones ) set up at my company's newest satellite office.
I'm starting by just trying to get one to work. I have set up that particular phone with a DHCP reservation (thanks, Linksys for adding that feature!), and attempting to forward the ports that the phone system manufacturer says I need to. However, it's obvious that some of the traffic isn't getting through (if I dial a number on the phone from the remote office, I can hear the call progress, however the other party can't hear me talking on the VOIP phone). The phone works fine when it's on the company's LAN at the main office. Our phone tech, who installed the system, says he can get into the main office phone system from his office with an IP phone, and has in fact called me from our office phone system using the said phone.
This tech also claims I need to not use port forwarding, but rather "open the ports" on the router. Huh? (I believe that this won't work unless both phones have public IP's...and I'm not going to do that! I couldn't anyways, the DSL connection only has one public IP).
Also, this is going to get real interesting when I have to add the second phone to the remote office...how is the router going to be able to forward ports to both phones (same port numbers)? Thoughts, anybody?

Just for the record - I'm not a Linksys employee, and neither are 99.9% of the other posters on this board. Like the others, we answer questions like yours for the challenge and satisfaction of helping others.
I didn't spend a lot of time reading the documentation for your phone system, but I find it difficult to believe that it would need more than one IP. The control unit of the system should be able to handle what amounts to a form of network address translation (NAT) which is what the router does. If the system is working for you, that's a good thing, but you might want to contact the support people for the phone system and see if there's a better way to add more phones without needing additional IPs.
Putting multiple IPs into a DMZ can be accomplished in business class routers from Cisco and other manufacturers. The WRT series are designed for residential and small office applications.
Glad to see your problem is solved - good luck!

In an attempt to configure Linksys PAP2 VOIP adapter, I a...

In an attempt to configure Linksys PAP2 VOIP adapter, I am constantly receiving this message, "Your phone may be plugged into incorrect phone port. Please try the other port." Manual reboot did not solve the problem. Can anyone help?

Hello,I am partheeban.Have you got to fix the problem.Me al so have same problem.If you sole that let me know.How you did.this is the massage i have got on my phone
This is the voice massage i have got it from my phone.
Connected in the incorrect phone port. Please try other port. If you believe
your correct port. Please log on to your web account to check your states of
your service O108.
This is the voice massage i have got it when you pickup the phone
immediately the voice massage will comes.
Thanks

E4200 - SIP ports blocked to/from Linksys SPA2102 VoIP ATA

The E4200 seems to block UDP ports to/from a Linksys SPA2102 ATA VoIP adapter. I tried enabling SIP ALG and still lost dial tone by morning. I tried looking at the Admin logs to see which inbound / outbound ports are being blocked but the log functions on this router only seems to display outbound information with no specifics as to what ports or protocols are being blocked by the E4200.
Does anyone on this forum know what configurations to change on the E4200 to allow the transparent operation of the SPA2102 VoIP ATA behind it?
Any hope Cisco will fix the log functions to display useable and meaningful information needed to setup Application specific configurations?

macthelion,
All new Small Business discussions (which includes the adapter you mentioned) have migrated to the Cisco Small Business Support Community.
All existing Small Business discussions have been archived here for
reference. We have made these changes to best serve all Cisco customers
now and in the future.
Please visit the Cisco Small Business Support Community Welcome Page created specifically for Linksys and Linksys by Cisco community members.
Thank you!

Port Forwarding for Counter Strike Server - DSL Modem to Linksys Router then to my Laptop (wifi)

Hi,
i have read many posts here but did not find any solution. Below is my current situation.
Objective: I want to create a Counter Strike 1.6 Server and for that i have to forward port 27015.
Networking Issues: Im currently using a Shiro (Dsl Modem) which is given by my ISP & i have connected my DSL modem to my Linksys WRT54G (ver 7.2) router. I connect my laptop thorugh wifi to router.
I know basic port forwarding but that does not help me. I need a complete tutorial on this issue coz i dont have much network knowledge.
waiting for reply
thank you

Try this link to forward port for Counter Strike on the router.

Not enough port fields in port forwarding for Linksys E4200

I have always used netgear routers in the past. After a series of issues regarding configurations not working correctly I invested in what appeared to be a semi pro router, the cisco linksys e4200.
I have a centralized server which I use to access a mass of different services such as mail, dns, VPN, FTP, Kerberos, http and many more. While I am not a massive networking nerd, this server setup is like my garage project. To access these services externally to my LAN as far as I understand I would need to configure port forwarding for each service to my server. Unfortunately the control panel for the linksys E4200 only offers about 15 custom port fields for forwarding, and some documentation I have read shows that with it's basic install my server could be using up to 60 ports at once.
Is this router just not suitable for this sort of network. If so I will be very disappointed because I have spent a quarter of the price on netgear routers with more control than this.
If anybody could assist with details and options I would greatly appreciate it

Wrong forum, use "small business routers".

Port forwarding feature in Linksys VoIP adapter

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