The index of Static Route Table. This object and
h3cIpxStaticRouteNextHop uniquely identify a static route.
The destination network number of this static route
information,and its value ranges from 1 to 0xfffffffe.
Note that the broadcast network number is 0xffffffff
and is not allowed in IPX. The network number of
0xfffffffe would be considered to be the network
number of default route.