Tool 177: Check if a SMTP server is up

Description:

  This tool connects on a SMTP server, then, send a QUIT.
  It ensures the server is working properly.
  
  Parameter --dst-ip is the address of remote host/server.
  Parameter --dst-port is the port number where to connect.
  Optional parameter --src-ip defines the local IP address to use.
  Optional parameter --src-port defines the local port number to use.
  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, --src-eth and --dst-eth permits to
  create a virtual client using fake addresses (in this case, tool have
  to be run with admin privilege in order to sniff and spoof at
  Ethernet level).

Usage:

netwox 177 -i ip [-d device] [-E eth] [-e eth] [-I ip] [-P port] [-p port] [-o ip4opts] [-O ip6exts] [-T uint32]

Parameters:

parameter	description	example
`-i\|--dst-ip ip`	destination IP address	5.6.7.8
`-d\|--device device`	device name	Eth0
`-E\|--src-eth eth`	source ethernet address	0:2:3:4:5:6
`-e\|--dst-eth eth`	destination ethernet address	0:8:9:a:b:c
`-I\|--src-ip ip`	source IP address	192.168.100.200
`-P\|--src-port port`	source port number	0
`-p\|--dst-port port`	destination port number	25
`-o\|--ip4opts ip4opts`	IPv4 options
`-O\|--ip6exts ip6exts`	IPv6 extensions
`-T\|--timeout uint32`	timeout in milliseconds	60000

Examples:

netwox 177 -i "5.6.7.8"

netwox 177 --dst-ip "5.6.7.8"