Error in opening webpage on different network

Hellooo all

I am using Arduino Uno and Ethernet shield to run a simple program of “hello word”.

I am getting output with IP address used in the program at my own PC and in other PCs in my network, but the problem is when the same IP is used from another place error comes -" this webpage is unavailable ".

Any one can tell me what could be the reason?

Is there anything required to access it from outside world?
please reply soon

Thank you.

There is a difference between a an inner local network IP and a global IP. This difference exists because otherwise all the IP addresses in the world will be taken. You can route your network IP address to the server (and open a server on your system).

when the same IP is used from another place error comes -" this webpage is unavailable ".

Where is the other place? If the arduino has a non rout-able IP LAN address, the access from the internet will require port forwarding on the router between the LAN and the outside world.

Thank you both.

so how to port forward router? how can i do it?

thank you.

o how to port forward router? how can i do it?

https://www.google.com/search?as_q=port+forward&as_epq=&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=http%3A%2F%2Fforum.arduino.cc%2Findex&as_occt=any&safe=images&tbs=&as_filetype=&as_rights=&gws_rd=ssl