The network-layer address of the destination host in this
conversation.
This is represented as an octet string with
specific semantics and length as identified
by the associated alMatrixTopNProtocolDirLocalIndex.
For example, if the alMatrixTopNProtocolDirLocalIndex
indicates an encapsulation of IP, this object is encoded as a
length octet of 4, followed by the 4 octets of the IP address,
in network byte order.