3Com 5500-EI PWR Reference Manual page 294

By default, the system can obtain the subnet route directly connected to the router. When you configure
a static route, if no preference is specified for the route, the preference defaults to 60, and if the route is
not specified as reject or blackhole, the route will be reachable by default.
When configuring a static route, note the following points:
If the destination IP address and the mask are both 0.0.0.0, what you are configuring is a default
route. All the packets that fail to find a routing entry will be forwarded through this default route.
You cannot configure an interface address of the local switch as the next hop address of a static
route.
You can configure a different preference to implement flexible route management policy.
Related commands: display ip routing-table.
Examples
# Configure the next hop of the default route as 129.102.0.2.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] ip route-static 0.0.0.0 0.0.0.0 129.102.0.2
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