Clarify the meaning of backwards compatibility

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

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

        -- a /29 CIDR-format subnet mask

        -- a /29 CIDR-format subnet mask

    iP-nat-translated   [6] BOOLEAN OPTIONAL

    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.

        -- if absent, no translation (i.e. it is may or may not translated for backwards compatibility), if TRUE then NAT translated, if FALSE then explicit original in NAT.

}

}

IP-value ::= CHOICE

IP-value ::= CHOICE