If you are doing source translation, you can optionally
enter a
Destination Address
. If you are doing
destination translation, the
Destination Address
is
required. The destination address (an address object is allowed)
must be a netmask, not just an IPv6 address and not a range. The
prefix length must be a value from /32 to /64, inclusive. For example, 2001:db8::/32.