Local alignment of network PDU:
none No alignment specified.
oneModulo4 Alignment on first octet (out of four).
twoModulo4 Alignment on second octet (out of four).
threeModulo4 Alignment on third octet (out of four).
fourModulo4 Alignment on fourth octet (out of four).
even Alignment on even-octet boundary.
odd Alignment on odd-octet boundary.