Add iP-nat-translated to iPAddress.

        -- The subnet mask is intended to be presented as a binary value, e.g. "ff ff ff f8" to

        -- represent the dotted-decimal subnet mask of "255.255.255.248" corresponding to

        -- a /29 CIDR-format subnet mask

    iP-nat-translated   [6] BOOLEAN OPTIONAL

        -- if absent, no translation (and backwards compat), if TRUE then NAT translated, if FALSE then explicit original in NAT.

}

IP-value ::= CHOICE