What is it called the function or operation that a client have to relate to when forwarding traffic to other networks (networks that's not close)...

Hello, you gave the answer yourself: "...when forwarding traffic to other..."Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

When a client needs to communicate with a remote host, the packet is sent to the default gateway (the router) which routes the packet towards the remote host. Packets are routed throughout the network with information in each node's local routing table. The word you are looking for is either forwarding or routing. Both terms are generally used synonymously, although are slightly different. How IP Packets are Routed on a Local Area Network http://www.anitkb.com/2010/06/how-ip-packets-are-routed-on-local-area.htmlVisit: anITKB.com, an IT Knowledge Base.