This object specifies how the system assigns an IP address to
the peer of a target PPP connection:
'static'
The system assigns the IP address specified by the
corresponding instance of cdtPppPeerDefIpAddr.
'pool'
The system allocates the first available IP address from
the corresponding list of named pools contained by the
cdtPppPeerIpAddrPoolTable.
'dhcp'
The system acts as a DHCP proxy-client to obtain an IP
address.
This column is valid only if the 'peerDefIpAddrSrc' bit of the
corresponding instance of cdtPppValid is '1'.