Remote port forwarding to a local port

I'm not sure if this is possible with verizon routers, but I know some routers will allow you to forward a remote port to a local port.
can this be done with the verizon MI424WR-GEN3I router?

viafax999 wrote:
andrewjs18 wrote:
anyhow, I'm trying to get port 1194 to work without redoing a bunch of configs because it appears that verizon is blocking port 1194 (openvpn), so what I was trying to accomplish was using 1195 as an external port which would then get forwarded to port 1194 internally.
when I port scan the IP, I get this: Port 1195 is closed on 173.62.X.X.
Verizon blocks NO ports
Do you have a listern on port 1194 at 192.168.1.31 ?
Source port should be Any
You need TCP for 1194 also TcpAny -> 1194
Edit is only an option once you've created a rule
You are trying to create a VPN tunnel to one of your internal devices?
Edit
I see you don't need TCP, it's eithe UDP or TCP
I got it working.
I think I was forwarding tcp by mistake rather than udp for openvpn.
thanks

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Wrong remote port number with TCP listener

Hi
I am sending data from a dsp with a network card over TCP/IP to my pc running labview7express. The data is received correctly, I use a 'TCP create listener' followed by a 'TCP wait on listener' to establish the connection, followed by a while loop with 'TCP read' in it.
The port returned by 'TCP create listener' is correct (1001), but somehow 'TCP wait on listener' returns 57345 as remote port!?
Also when using another port eg 1003 it still returns 57345..
Anyone knows how this erroneous portnumber is achieved?

stino wrote:
> Hi
> I am sending data from a dsp with a network card over TCP/IP to my pc
> running labview7express. The data is received correctly, I use a 'TCP
> create listener' followed by a 'TCP wait on listener' to establish the
> connection, followed by a while loop with 'TCP read' in it.
> The port returned by 'TCP create listener' is correct (1001), but
> somehow 'TCP wait on listener' returns 57345 as remote port!?
> Also when using another port eg 1003 it still returns 57345..
> Anyone knows how this erroneous portnumber is achieved?
Nothing wrong with that. A TCP/IP connection has ALWAYS two connection
ends with each of them using a port number. 1001 is the port of the
local listen socket (which needs to be fixed so that clients can connect
to a know
n server) in your LabVIEW application. 57345 is the port number
used by your software running on your DSP board. A client usually has no
fixed port number but allocates any port number not already in use. When
the listen socket receives a connection request it connects and passes
the connection with the local port 1001 and the remote port 57345
through TCP Wait On Listener to your application. Since you set up the
Listen Socket in Create Listener you already know its port number so TCP
Wait on Listener does only return the port number of the remote
connection end of your connection.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Is there a way to open a remote port programmatically in java code

Hi,
I'm trying to open a remote port which is closed by the windows firewall in a java code. I want to know weather this is possible?
If yes, tell me a way to do this?
Thanks.
Buddhika

Because, that port should be kept closed and I want to open it when i need it in runtime. Also i have full privileges to access that remote machine. So i >want to change the firewall setting while application running.Can't you have a application running on the remote PC that makes use of two ports, and Admin port and a General port?
The Admin port will be created on startup and use some authentation to make sure that a the application that connects to it will have admin rights
Use that application to tell the "Server" to open and close the General port.

How to check weather a remote port is open or closed by a firewall

Hi,
Need to check weather a remote port is open or closed by a firewall. can i use Java Socket class to do that?
Is there any proper way?

In general, there is no way to determine anything about the status of a firewall from the outside (unless you know one is running and you want to verify it's functioning correctly).
When trying to connect to a socket, you might get a time-out, which means either the firewall is silently dropping packets or the server is down or too busy or that there is a network problem. Or your connection might be refused, which means either the firewall has denied your request or the server isn't listening on the port you specified.
In most cases, you should only be interested in successful connections and not try to guess too much as to the cause of unsuccessful ones.

Y dont the new ipods have a remote port??

I really want a new i pod with the video and pics and color but the only reason i am hesitating is because it doesn't have a remote port next to the headphone port. I use the remote port a lot for my fm radio adapter. and i dont want to buy one of the crappy fm adapters because those use battery and thats just annoying.
henyway what should i do??

I use the DLO Transpod with my ipod in my car, and it will charge the battery as well as play. There are other players as well that will charge and play over the radio waves, but I like the DLO because of the Doc. I believe Belkin makes a remote for the 4G, but I'm not sure if that works for the 5G. If you can't be without the IR port though, don't buy an ipod. Buy a player that supports what you want.

Compact Fieldpoint TCP/IP remote port

i am working on cFP 2120 / cFP 2020 and for TCP/IP connection i have to use remote port number. so can all you guide me that what remote port nu. or service name i have to use.
waiting for your reply
Prashant Soni
LabVIEW Engineer

The port number can be whatever you want it to be, as long as the server and the client have the same one specified. Generally, you have a server publishing data to a port and some client reading data on that port. I believe there is a TCP communication example in the Example Finder, just search for TCP and look for TCP Communication.lvproj. It's actually set up with a real-time target as well.
Good luck!
Misha

AirPort Extreme FTP port is open when doing Remote Port Scan

I have a question regarding the AirPort Extreme Base stations running firmware 7.7.3. Currently the AirPort is not port-mapping any services, however when I do a remote port scan of that particular AirPort I have noticed some TCP ports are open from the outside, such as FTP port 21, RTSP port 554 and ARCP port 7070. Why is that? I thought the AEBS blocks these services by default, unless otherwise configured to be open. Is this a vulnerability with the firmware?

TCP and UDP ports used by Apple software products - Apple Support
Your 554 and 7070 may be open due to links to itunes store. It is not a big vulnerability since it is for streaming.
Port 21 is more a concern.. It is used internally by the AE apparently.. but I really do not know why. FTP as a protocol is not offered to the outside world. so you cannot connect to it and get info for files.. even if you have a hard disk plugged in. Why it should be open to the outside world I am not sure.
Do you have BTMM turned on? It may be involved with remote services.
If you are concerned it is not hard to fix.. port map those ports to a non-existent client in the network.. however your itunes store connection might stop working as well as some other things... that need those ports open.. There is also a good chance you cannot map them when they are used.. so do a factory reset and before you setup other applications or BTMM do the port map and see what happens.
You can also post the details to apple directly but I honestly doubt you are facing any big issues here.

Apple or 3rd Party: PLEASE make a dock with the remote port!

Sure there was no room for the remote port on the bottom, but you could make a dock, just like the lanyard headphone dock, that includes the headphone miniplug and the remote plug, just like on all the docking iPods...
THEN, we could use our iTrip FM transmitters (or any one of them that use the iPod's power), that ever-so-cool Logitech Bluetooth headphone set, various wireless remote controls -- even Apple's own wired-remote control... the list goes on and on.... even that crazy iPod laser pointer...
Thanks in advance.

Good suggestion, your feedback should be provided at: http://www.apple.com/feedback/

Calling a Remote EJBSession Facade from a Local EJBSession Facade

Hi, I'd like to understand the way of calling a remote ejb application from a local ejbsession facade using its methods (throught data control palette) without I have to generate a Java Client. To do this, where do I put the code to get the remote ejb facade instance?.
Thanks in advance.

My problem is to call a application server, using rmi/jndi from a local application which has been developed using ADF+JSF+Toplink.
Concretely, into a backing bean method I need to call a method that this available one in the facade of the other application, which resides in OAS.
Using simple clients,it works fine, but I don't know the way to do it within backing bean, since creating a remote interface of the facade with the declaration of the remote method, it does not allow me to declare this like abstract. Nevertheless, and since already I have commented using a simple client it works to me.
Help please.

Problem with JMX Remote Port - JBoss & Apache on same machine

Hi,
I have a server which hosts Apache that uses mod_jk to pass requests to three Tomcat instances. Apache listens to port 80.
I want to install a different application on the same machine that runs on JBoss. Foreseeing the problem with port numbers, I got a different IP address (Let's say IP2, and original IP for Apache is IP1) on the same machine to run JBoss application. I changed HTTP Connector configuration in server.xml to add "address=IP1:8080" for Tomcat, "address=IP2:8080" for JBoss. I also modified Apache Listen directive in httpd.conf from "Listen 80" to "Listen IP1:80".
Now when I try to start JBoss server by running run.bat, I get below error.
Can any one please suggest how can I resolve this port conflict? Is there even a way to resolve it? As JAVA_HOME can point to a single location and both JBoss & Apache use it?
Thanks.
===============================================================================
JBoss Bootstrap Environment
JBOSS_HOME: C:\jboss
JAVA: C:\Java\jdk1.6.0_01\bin\java
JAVA_OPTS: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=
9004 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.aut
henticate=false -Dprogram.name=run.bat -server -Xms128m -Xmx512m -Dsun.rmi.dgc.
client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000
CLASSPATH: C:\Java\jdk1.6.0_01\lib\tools.jar;E:\jboss\bin\run.jar
===============================================================================
Error: Exception thrown by the agent : java.rmi.server.ExportException: Port alr
eady in use: 9004; nested exception is:
java.net.BindException: Address already in use: JVM_Bind
Press any key to continue . . .

What's running on JMX port without the Jboss running ?
Seems that u have something it.
Btw, try to discover how to bind JMX of portal to IP2, not to IP1 or to global Ip.

TCP Read blocks remote Port

HI,
I want to read a NMEA string(update rate 1 Hz) from a server. The original NMEA(serial, 4800 Baud) is converted by a MOXA to TCP.
Here is my minimal program, I have normally a "wait until 1000ms" timer inside.
The problem is that the MOXA closes its port every other minute. I still can read but every one else is blocked.
Other terminal programs work. The network guy tells me that he sees a lot of traffic coming from my adress and he thinks that at some point the MOXA is confused and closes its ports.
Is there a possibility that TCP read sends a status or failure string?
Solved!
Go to Solution.

azavarsky wrote:
HI,
I want to read a NMEA string(update rate 1 Hz) from a server. The original NMEA(serial, 4800 Baud) is converted by a MOXA to TCP.
Here is my minimal program, I have normally a "wait until 1000ms" timer inside.
The problem is that the MOXA closes its port every other minute. I still can read but every one else is blocked.
Other terminal programs work. The network guy tells me that he sees a lot of traffic coming from my adress and he thinks that at some point the MOXA is confused and closes its ports.
Is there a possibility that TCP read sends a status or failure string?
How fast does this device send its strings? Does it simply spew data without any query command having to be send? If so your Moxa may have a problem too, as it may not know what to do with the data if there is no client connected to read it. Also your Moxa converter may have trouble to serve more than one TCP client on the same port anyhow. What should it do if several clients try to access the same port? Send the same message to each? Or send the incoming message randomly to one of them?
Do you get errors from your TCP Read once Moxa "closes" the port as you say? If so you should terminate your loop on any error except possibly a timeout error and reopen the port in a second outer loop until your program wants to exit. Your loop never stopping on errors will prevent the TCP Close to execute which will keep the socket open and prevent the Moxa from seeing the proper handshaking that the connection has been properly closed by the client, which will likely prevent the Moxa device from being able to accept new connections. Network communication can be tricky and one of the first things you have to learn is proper error handling. Just about any error anywhere in the network connection, except usually a timeout error on read, should be handled by closing the connection and trying to reconnect.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Pictures to remote users but not to local users

We use iChat a LOT to send pictures- I have employees working remotely, and we routinely pase screen shots, via clipboard, to iChat. This is a wonderful thing.
But you know what? It will not work locally: anyone here in the office cannot receive or send pictures. The message that we get: 'AIM error. An AIM error has occurred. Unable to talk directly to your buddy'.
I don't know what kind of info about our system to post here that would be important to help out, but I'll try. We have a small LAN of 6 computers. We access the internet through a NetGear Router, which, incidently, is fairly heavily configured so that I can access any of my computers remotely via Timbuktu, and for other reasons and servers.
This almost seems like a port-related issue, except that sending pictures to an address outside the LAN is smooth and clean.
Ideas?
Michael Spencer
G5 Dual 1.8, T-Book 667, A-Book, iMacs... Mac OS X (10.4.5)

Hi Michael,
As far as I am aware the Bonjour side should be able to send file.
Bonjour uses different ports to the AIM side of iChat
You will need to make sure the ports 5297, 5298 and 5353 are open in the MAc Firewall if it is on and in the modem.
All need the UDP protocol and 5298needs TCP as in the places where it is specified.
10:03 PM Monday; March 27, 2006

Access AFP, email, Remote Desktop via VPN and local network but NOT web

How can I do this? Right now I can set up all these services where I can access them via VPN only, but not on the local network or via the web. If I want to access them via the local network I have to open up the ports in the firewall, however this opens up access via the web (not requiring VPN) which I do NOT want. How do I remedy this?

How can I do this? Right now I can set up all these services where I can access them via VPN only, but not on the local network or via the web. If I want to access them via the local network I have to open up the ports in the firewall, however this opens up access via the web (not requiring VPN) which I do NOT want. How do I remedy this?

Remote Database connection error on local database while running a procedur

Dear Gurus,
I am trying to run a procedure to grant Select Access to all objects of a schema to all schema but getting below error messages:
Error report:
ORA-02019: connection description for remote database not found
This is on local database and all required privileges have been given to run this procedure but I dont understand why this error is being thrown every time. I am able to fetch all the tables directly (i.e. SELECT object_name FROM user_objects where OBJECT_TYPE IN('TABLE','VIEW','MATERIALIZED VIEW') AND STATUS='VALID')
Kindly let me know if you have any solution.
Procedure detail:
declare
sqltxt varchar(250);
cursor course_det is
SELECT object_name FROM user_objects where OBJECT_TYPE IN('TABLE','VIEW','MATERIALIZED VIEW') AND STATUS='VALID';
v_objnm user_objects.object_name%type;
begin
open course_det;
loop
fetch course_det into v_objnm;
exit when course_det%notfound;
sqltxt :='GRANT SELECT ON ' || v_objnm|| ' TO public with grant option';
EXECUTE IMMEDIATE sqltxt ;
end loop;
end;
System detail:
Oracle 11.2.0.3/Linux 5.3
Ragards.
Edited by: 877938 on Mar 20, 2013 12:27 AM

Hi,
It seems you are fetching records from one database to other. for that you need to create dblink for that.
Create dblink first and then try to fetch records using that dblink.
ORA-02019: connection description for remote database not found
Cause: An attempt was made to connect or log in to a remote database using a connection description that could not be found.
Action: Specify an existing database link. Query the data dictionary to see all existing database links. See your operating system-specific Net8 documentation for valid connection descriptors.

How to call a remote stored proc from a local stored proc using DB Link

Hi All,
I am trying to call a stored procedure residing in another data base from the local procedure of my local data base using DB link,I am using the following syntax to call the procedure
CREATE OR REPLACE PROCEDURE MYLOCALPROCEDURE(Input1 IN varchar2 ,Input2 IN varchar2) IS
BEGIN
RemoteStoredprocedurename(Input1,Input2)@DBLINK;
END;
END MYLOCALPROCEDURE;
Its giving a compilation error as @ not expected
If i try to execute this way
CREATE OR REPLACE PROCEDURE MYLOCALPROCEDURE(Input1 IN varchar2 ,Input2 IN varchar2) IS
BEGIN
RemoteStoredprocedurename(Input1,Input2);
END;
END MYLOCALPROCEDURE;
Its giving an error as stored procedure must be declared.
A public synonym is created at the Remote database to which DB link is created.
Can you please let me know on the exact syntax to call the procedure residing in other database through DB Link.
Thanks in advance,
Kumar

Try:
CREATE OR REPLACE PROCEDURE MYLOCALPROCEDURE(Input1 IN varchar2 ,Input2 IN varchar2) IS
BEGIN
RemoteStoredprocedurename@DBLINK(Input1,Input2);
END;
END MYLOCALPROCEDURE; Amiel

Remote port forwarding to a local port

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