port forwarding Multi-Input-Single-Output

forward several ports into a single one

this tool forwards packets from several ports into one single port.

how it works:

it stays on client side before client application and forwards all packets from multiple ports into one single localhost port.
the application that wants to receive data listens to the dedicated port on localhost.

block diagram


        server         internet            client 
          │               │                   │
          │               │                   │
          │               │                   │
          ▼               ▼                   ▼
    
                                  ┌╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸┐
                                  ╏                 this application sits here                      ╏
                                  ╏                                                                 ╏
                                  ╏                                                                 ╏
                                  ╏                                                                 ╏
                                  ╏           ┌───────────────┐                                     ╏
                                  ╏           │               │                                     ╏
                     ┌────────────╏───────────►  socket 1     ├──────┐                              ╏
                     │            ╏           │               │      │                              ╏
                     │            ╏           └───────────────┘      │                              ╏
                     │            ╏                                  │                              ╏
    ┌────────────────┴─┐          ╏                                  │       ┌──────────────┐       ╏
    │                  │          ╏           ┌───────────────┐      └───────►              │       ╏    ┌────────────┐
    │  multipath       │          ╏           │               │              │  localhost   │       ╏    │            │
    │  multiport       ├──────────╏───────────►  socket 2     ├──────────────►  forwarding  ├───────╏────►client      │
    │  load-balancer   │          ╏           │               │              │  socket      │       ╏    │application │
    │                  │          ╏           └───────────────┘      ┌───────►              │       ╏    └────────────┘
    └────────────────┬─┘          ╏                                  │       └──────────────┘       ╏
                     │            ╏                                  │                              ╏
                     │            ╏           ┌───────────────┐      │                              ╏
                     │            ╏           │               │      │                              ╏
                     └────────────╏───────────►  socket n     ├──────┘                              ╏
                                  ╏           │               │                                     ╏
                                  ╏           └───────────────┘                                     ╏
                                  ╏                                                                 ╏
                                  ╏                                                                 ╏
                                  ╏                                                                 ╏
                                  ╏                                                                 ╏
                                  └╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸╸┘

ascii block diagram drawn using asciiflow.com

forward several ports into a single port

Related tags

Overview

port forwarding Multi-Input-Single-Output

how it works:

block diagram

Owner

Erfan Kheyrollahi Qaroğlu

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