Download Options
       --bind-address=ADDRESS
           When making client TCP/IP connections, bind to ADDRESS on the local machine.  
           ADDRESS may be specified as a hostname or IP address.  This option can be useful if
           your machine is bound to multiple IPs.

       --bind-dns-address=ADDRESS
           [libcares only] This address overrides the route for DNS requests. If you ever need to circumvent 
           the standard settings from /etc/resolv.conf, this option together
           with --dns-servers is your friend.  ADDRESS must be specified either as IPv4 or IPv6 address.  
           Wget needs to be built with libcares for this option to be
           available.

       --dns-servers=ADDRESSES
           [libcares only] The given address(es) override the standard nameserver addresses,  e.g. as 
           configured in /etc/resolv.conf.  ADDRESSES may be specified either as
           IPv4 or IPv6 addresses, comma-separated.  Wget needs to be built with libcares for this 
           option to be available.



       -4
       --inet4-only
       -6
       --inet6-only
           Force connecting to IPv4 or IPv6 addresses.  With --inet4-only or -4, Wget will 
           only connect to IPv4 hosts, ignoring AAAA records in DNS, and refusing to connect
           to IPv6 addresses specified in URLs.  Conversely, with --inet6-only or -6, Wget 
           will only connect to IPv6 hosts and ignore A records and IPv4 addresses.

           Neither options should be needed normally.  By default, an IPv6-aware Wget will use      
           the address family specified by the host's DNS record.  If the DNS responds
           with both IPv4 and IPv6 addresses, Wget will try them in sequence until it finds one 
           it can connect to.  (Also see "--prefer-family" option described below.)

           These options can be used to deliberately force the use of IPv4 or IPv6 address families 
           on dual family systems, usually to aid debugging or to deal with broken
           network configuration.  Only one of --inet6-only and --inet4-only may be specified at the 
           same time.  Neither option is available in Wget compiled without IPv6
           support.

       --prefer-family=none/IPv4/IPv6
           When given a choice of several addresses, connect to the addresses with 
           specified address family first.  The address order returned by DNS is used without change
           by default.

           This avoids spurious errors and connect attempts when accessing hosts that resolve to 
           both IPv6 and IPv4 addresses from IPv4 networks.  For example, www.kame.net
           resolves to 2001:200:0:8002:203:47ff:fea5:3085 and to 203.178.141.194.  When the preferred 
           family is "IPv4", the IPv4 address is used first; when the preferred
           family is "IPv6", the IPv6 address is used first; if the specified value is "none", 
           the address order returned by DNS is used without change.

           Unlike -4 and -6, this option doesn't inhibit access to any address family, it only 
           changes the order in which the addresses are accessed.  Also note that the
           reordering performed by this option is stable---it doesn't affect order of addresses 
           of the same family.  That is, the relative order of all IPv4 addresses and of
           all IPv6 addresses remains intact in all cases.