### Tool 92: UDP server multiclients

### Description:

      This tool listens for several clients connections. It can show
      received data to screen (--showscreen), and echo it back to
      client (--echoback).

      Parameter --src-port defines the local port number to listen on.
      Optional parameter --src-ip defines the local IP address to use.
      Optional parameter --iptype defines which kind of IP address to use
      when --src-ip is unset (accepted values: ip4 and ip6).
      Optional parameter --ip4opts permits to add IP4 options encoded as
      mixed.
      Optional parameter --ip6exts permits to add IP6 options encoded as
      mixed (first byte is the next header number).
      Optional parameters --device and --src-eth permits to create
      a virtual server using fake addresses (in this case, tool have to be
      run with admin privilege in order to sniff and spoof at Ethernet
      level).

### Synonyms:

nc, netcat

### Usage:

netwox 92 -P port [-s|+s] [-b|+b] [-d device] [-E eth] [-I ip] [-o ip4opts] [-O ip6exts] [-t iptype]

### Parameters:

parameter | description | example
`-P|--src-port port` | source port number | 1234
`-s|--showscreen|+s|--no-showscreen` | show data to screen |
`-b|--echoback|+b|--no-echoback` | echo data back to client | This boolean is set. Use + or --no- to unset it.
`-d|--device device` | device name | Eth0
`-E|--src-eth eth` | source ethernet address | 0:2:3:4:5:6
`-I|--src-ip ip` | source IP address | 192.168.100.200
`-o|--ip4opts ip4opts` | IPv4 options |
`-O|--ip6exts ip6exts` | IPv6 extensions |
`-t|--iptype iptype` | type to use when src-ip is unset | ip4

### Examples:

netwox 92 -P "1234"
netwox 92 --src-port "1234"