Cisco :: Port Forwarding (NAT) With One Public IP?

Feb 11, 2012

command for port forwarding to a few applications (inside hosts) when you only have one Static IP (Public) which is used for many to one NAT (Overloading)?This is the config for the many to one NAT.access-list 1 permit ip nat inside source list 1 interface Dialer1 overload What command is necessary to forward ports to certain applications?

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Cisco Routers :: RV042G Port Forwarding From Public Port To Internal IP?

Oct 11, 2012

Is it possible to create a service which will forward public port 9010 to an internal IP address with port 23 ?
First of all, I do not like to open the public Telnet port to the inside so I would use another public port and second my ISP does not allow some public ports beneath port 80

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Cisco Switching/Routing :: 881W - IOS Port Forwarding Commands For Port Forwarding

Apr 7, 2013

I am trying to open up port 32400 on my 881w Cisco router but I have not had any success I need to configure manual port-forward to enable my Plex Media server.

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Cisco WAN :: 7960 - Static NAT Public-Private Forwarding On 887VA

Sep 3, 2012

So, I have a bit of a problem getting out Natted Cisco 7960 working with our external SIP providers behind NAT.
We have a block of IPs available to us, however when I asign a static NAT rule for the internal phone, outgoing calls are fine but incoming provides no audio.
We have no ACL blocking or anything, it's fully open to the outside world with the IP assigned to it via NAT.
Our static NAT rule for the phone:
ip nat inside source static
NAT is configured on the phone, with the external IP set correctly.
Also, after a while, it seems as the the registration times out or something because incoming calls no longer work.
I thought a static NAT rule would just allow full access to incoming connections to the internal IP specified? Our main router config (with unnecessary information removed):
version 15.1
no service pad
service timestamps debug datetime msec


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Linksys Wired Router :: RV042G / Create Service To Forward Public Port 9010 To Internal IP Address With Port 23?

Oct 12, 2012

Is it possible to create a service which will forward public port 9010 to an internal IP address with port 23?First of all, I do not like to open the public Telnet port to the inside so I would use another public port and second my ISP does not allow some public ports beneath port 80?

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Cisco Routers :: RV042G - Port Forwarding To 2 Different Destinations Based On Incoming Wan Port

Apr 22, 2013

how to: port forwarding to 2 different destinations based on incoming WAN port
The default HTTP service works fine: TCP80/80->
I have a couple of IP security camera's I'd like to be able to access remotely that also listen on port 80. I tried TCP & UDP 8009/8009-> without any luck. Not sure how to handle the port redirects on the RV042G? Seems simple and was on the Symantec, could be user training :-)
I was able to do port redirect with the Symantec Firewall I'm replacing.

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Cisco Firewall :: Change Default SSH Port On ASA 5505 (port Forwarding)

Dec 2, 2011

So here is my network.
ASA asa831-k8.bin
Cisco 1841 c1841-adventerprisek9-mz.151-4.M2.bin
Cat 2960 c2960-lanbasek9-mz.122-55.SE1.bin
and here is my dilemma.
I can SSH from the internet to my ASA on default port 22, directly to my public IP.  I can SSH from the internet to my Cisco 1841 on port 2001. I can not however, SSH to my Cat 2960.  From what i can tell, on the Cat2960 i can't change the default port 22 for SSH to different port, just like i did on the Cisco 1841.  I looked to see if I can change the default port for SSH on he ASA, it does not look like this is an option.
The bottom line is that i want to be able to SSH to all three devices from the internet.  I only have one public IP.  As of now, what i can do is only SSH to the ASA on default port 22 directly to the public IP and Cisco 1841 on port 2001.  It appears that changing the default SSH port on Cat 2960 is not an option.  It also appears that I can't change the default SSH port on the ASA, if i could, i would and then i should be able to SSH to the Cat 2960 on port 22. No matter what i did on the ASA, it always listens on port 22 for SSH connections.
show asp table socket
TCP       001f549f  <<pub IP>>:22    *               LISTEN
how do i make it listen on different port?
Here is relevent config for SSH for cisco 1841 (port forwarding)
object network ROUTER


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Cisco :: Not Enough Port Fields In Port Forwarding For Linksys E4200

Jul 16, 2011

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 ****, 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.

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Cisco Routers :: SRP541W Set Up Port Forwarding From External Port

Apr 13, 2013

I've set up port forwarding from an external port (9000) to an internal port (80) on our SRP541W, and for some reason, it's not working externally. If I access the public address from within the internal network, it works properly.

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TP-Link ADSL2+ Wireless :: TD-8970 Port Forwarding To A Different Internal Port

Mar 7, 2013

Region : UnitedKingdom
Model : TD-W8970
Hardware Version : V1
Firmware Version : 0.6.0 0.11 v000c.0 Build 121203 Rel.46289n
ISP : Virgin Media

Is there any way of forwarding an external port to a different internal port on the TD-8970 ?I saw a question posed on an Australian forum implying that it might be provided in a later firmware release.Our TD- 8970 has replaced a previous NetGear WAG 320N which had this facility, and is useful to provide access to multiple machines without having to modify each individually to use a different port.

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D-Link DIR-655 :: Subsonic Port Forwarding / Get Machine - Port From Outside / Internet

Feb 16, 2011

I am having an issue opening a port (4040) on the 655 for my Fedora-based subsonic server.  Inside the LAN, I can see the device from other peer machines, so I am confident the port is open and listening.  However, I can't seem to get to the machine-port from outside/internet. 

I have tried Virtual Server and Port Forwarding with single port.  The server has a stactic IP which I've included in the DHCP range and outside the range.  I have a DSL connection (AT&T), modem only.  I have updated firmware.  I have exhausted the Subsonic community's knowledge, everything points to the router, but all the settings seem correct.  What am I missing?  Is if possible there is a defect in the router? (don't laugh).  Is there a way to trace a request to that port to see where it is hanging?

(yes, I've STFA, but don't know what else to do).

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Home Network :: Port Forwarding Not Access Port

Jul 31, 2011

I want to create a Counter Strike Server and need to open some ports for that.The Problem: I cannot seem to open the ports for gaming.The Modem Setup: My Firewall is disabled.My guess is that, this is the area with the problem. I guess my modem is not forwarding onwards.The Problem: I tried checking my ports with websites like URL etc.It cannot access my port.

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Port Forwarding Port 80 Blocks Internet For Everyone Else?

Aug 7, 2011

I have a DSL-524B from D-Link. My problem is, whenever I Port Forward port 80 to my comp's IP to host a web server, all the other computers connected to the router are unable to access the Internet. So, I set up no-ip to use port 8080, but, this exposes my ip and even when masking, if you look at the HTML code, you get the ip.I need to know how to open up port 80 without restricting Internet access to only my comp, or any other work around.

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Cisco :: Allow One Host To Access One Public IP With Port 500

Mar 4, 2012

I got one request from one of the user to allow his ip to access one public using port www, this needs to be allowed in Cisco PIX, if the below command is correct for this.

Source host :
Destination IP :
Port : www

access-list acl_outbound permit tcp host host eq www

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Cisco Firewall :: Add Public IP / 29 With Port 51241 In ASA?

Oct 7, 2012

I am having normal network need to add public ip / 29 with port 51241 in ASA firewall

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Port Through Public IP To Free NAS Server?

Feb 16, 2012

I have a virtual FreeNAS server running from VMPlayer and I want to allow my friends to connect to my media server from their houses, but I don't want to buy a domain. Is there a way to port them to it when they connect to my Public IP? I am willing to use another program if necessary. I have looked at Filezilla, but have the same issue.

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Cisco WAN :: 5505 Route Public Ip Addresses To DMZ Port

Sep 25, 2011

I have a customer thats got a Linksys router now, that has a DMZ port.The DMZ port is configurede to it routes the extra public ip-adress to the DMZ port it has.At the DMZ port they have another router connected, where they routes the public ip-adresses på some other devices.How can i make this setup on a Cisco ASA 5505 (With the Security Plus licens)What i have to do is to replace the Linksys router, and make it so, so it works like it was before with the Linksys.

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Cisco WAN :: 2821 How To Assign For A Port One / More Public Addresses

Nov 2, 2011

I just thought if it's possible to make sure that only approved IP addresses for each of divisions of a company can be used.How can I assign for a port one/more public addresses and be sure that only this port is using it/them. Thing is I have only one 24 bit public Network ID provided to me by ISP. One IP address of the range is used for ISP's gateway. So I have 253 addresses to be distributed among divisions. However to avoid IP address conflicts I have to be sure that only dedicated for a division IP address/es is/are used by the division.
Router is 2821.
Switch is 2950.

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Broadband :: Re-direct A Public Router To Port?

Aug 20, 2011

I am trying to remotely access my PC from my HP Touchpad. I have program to do that but my public router is blocking access. The program says to redirect that router to port 5900. Since it is a public router I can't find how to access the public router to redirect it.

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Cisco Firewall :: ASA 5505 Port Redirection On Same Public Address?

May 26, 2012

We have 2 TS (Terminal Servers) and have configured the 1st RDP using my public address (say on port 3389. it is working very well of course. However I need setup my 2nd TS but will use port 7777 on the same public address which is not working.I am using ASDM 6.3 and firmware 8.3.1.Is this a limitation for this IOS?

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Cisco WAN :: ASA 5505 - Forward Public Requests To Two Services With Same Port?

Mar 29, 2012

We are in a planning phase of adding another service to our DMZ.  The DMZ has a singe publicly accessible IP.  We are running Citrix inside our network externally accessible via w121eb https (443).  Another service will be added to the DMZ (Exchange/O365) requiring ADFS & and ADFS proxy also using port 443 as well.  Both services (the Citrix secure gateway & ADFS) will have separate subdomains but directed to that same IP, each with its own cert. 

Now, I guess the question is: How (if possible) can we forward the public requests to the two services that hit our network on the same port (can't change the port on either), to two separate appliances with their own internal IP's internally?Our current appliance on the DMZ is an ASA 5505.  Also could use a PIX

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Port Forwarding In A Cisco PIX 501

Apr 1, 2012

I finally got my Cisco Pix 501 working on my network and everything is working great! However, I do host game servers on occasion and I have a 24/7 FTP server up and as of now, I can't connect to it because the PIX is blocking the ports!I have zero experience with Cisco, so I need step-by-step instructions on what commands to enter to get this thing working!

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Cisco :: ASA 8.4 And Port Forwarding

Mar 12, 2011

I am very confused now. I got my 5505 for home (basic) and loaded up 8.4(1) fresh. From the inside interface I can reach the internet no problem but I am having issues trying to get my port forwarding to work with torrent. inside host is port is 26883, I have been trying to configure this forever.

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Port Forwarding On A Cisco PIX 501?

Apr 1, 2012

I finally got my Cisco Pix 501 working on my network and everything is working great! However, I do host game servers on occasion and I have a 24/7 FTP server up and as of now, I can't connect to it because the PIX is blocking the ports!

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Cisco VPN :: VPN Port Forwarding On 877?

Apr 6, 2011

We have the above router for a small business and I want to configure VPN to port forward to the server so it can handle the VPN traffic through Routing and Remote Access.I have configured port forwarding on SMTP, RWW and other protocols successfully but VPN will not work.Within the built in web interface on the Cisco it advised that if I want to configure VPN I need to use Cisco Config Pro. I have had a look through this software but it looked to only support the router as the VPN gateway rather than port forwarding to a server.

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Cisco LAN :: 871 - NAT Port Forwarding

Jul 10, 2007

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 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

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Public / Private IP And Port Number For Remote Access?

Dec 23, 2012

I would like to understand how public IP works in remote access. I do have belkin router and when I access it remote I type my public IP and after it the port number for example and if I would like to access an IP cam remotely in the same network i would do the same thing (public IP). I do know my Public IP is unique.Thus, its quite logical I can access my devices remotely. my understanding of the port number is application specific that addresses packets in different applications in the same computer. For example port 80 is for HTTP connection used browsing the web, for chatting in MSN i will use different port number specifically for MSN...etc. my question is how I can access my belkin router remotely by typing the public IP and the port number knowing that the port number is application specific not device specific? My second question is, is it possible to access two routers in the same network remotely?

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DI-524 / Port Forwarding With ATT DSL?

Nov 10, 2012

I was at a friend's office today trying to get the IP cameras working but forwarding the ports seems not to work with his current modem from ATT (a Westwell F90 or something). Would the workaround for this be purchasing a third party modem instead that supports port forwarding and stop leasing the Westwell F90 from ATT?

edit: the modem is hooked up to a DI-524 from D-Link and i already forwarded different ports to see if it was specifically port 80, 1024 etc

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Cisco Firewall :: 5510 NAT Port Forward Based On Public Source IP?

Dec 27, 2011

I have one public IP address but multiple local servers that run on the same port. I cannot change the port the clients use to connect to this server, so I can't do a port map in my NAT router. The solution I had in mind, is to filter on source address. If a client from public IP X.X.X.X connects to port Z, I want it to go to internal server and if a client from public IP Y.Y.Y.Y connects to port Z, I want it to go to internal server Is this possible? I'm using an ASA5510 but I could also switch to a 5505 for this.

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Cisco :: Port Forwarding On 5505?

Sep 2, 2012

I have the following configuration in my ASA 5505 and I'm having problems connecting with other players on my XBox.

I think my problem is that I need to forward ports tcp:3074, udp:3074, and udp:88 to my xbox which is at (vlan 3 below).

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Cisco :: Port Forwarding On ASA 5505?

Oct 30, 2012

Trying to do port forwarding so that one particular host located on the WAN can get access to a LAN box on a specific port via the public IP.

Here's what I've setup on the ASA (IP addresses and port number have been changed to protect the innocent):

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Cisco LAN :: How To Do Port Forwarding For 1600

Mar 26, 2012

We have a Cisco 1600 Router, would like to know how to do port forwarding to allow our security camera to be able to view online

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Cisco VPN :: 877 / DMVPN NAT And Port Forwarding?

Sep 11, 2012

I have a setup with two Cisco 877's – 1 for the hub and 1 for the  spoke. The hub has a static WAN IP and the spoke has a dynamic WAN IP.  The two sites are tunneled with DMVPN and cert auth for connections via  Cisco VPN Client (terminating on hub router). All routes between the two  sites work fine – I can see through both ends via LAN IPs and tunnel  IPs. I can connect externally through Cisco VPN Client and RDP into PC's  on the spoke end via local IPs.
My issue is: I want a port forward on the hub router, pointing to the  IP (172.16.1.X) of a device on the spoke end. So using the WAN IP of  the hub router, I can reach a host on the spoke side. At this point I  cannot get this to work and feel it's related to a NATing issue. Here is  my current config for both sites:
HUB Router:
!crypto pki server vpn-ca database level names issuer-name CN=*** CA,OU=*** Services,O=*** lifetime crl 336 lifetime certificate 7305 lifetime ca-certificate 7305 lifetime enrollment-request 1000 database url nvram! 
crypto pki trustpoint vpn-server enrollment url usage ike serial-number none fqdn none ip-address ***WAN IP*** revocation-check crl rsakeypair vpn-server 2048 auto-enroll 70 regenerate! 
crypto pki trustpoint vpn-ca revocation-check crl rsakeypair vpn-ca!


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