Dell PowerConnect 5524P User Manual page 211

When routing traffic, the next hop is determined according to the longest
prefix match (LPM algorithm). A destination IPv4 address may match
multiple routes in the IPv4 Static Route table. The switch uses the matched
route with the longest prefix match.
To add an IPv4 static route:
1 Click System > IP Addressing > IPv4 Static Routing in the tree view to
display the IPv4 Static Routing: Summary page.
Figure 9-17. IPv4 Static Routing: Summary
2 Click Add to add a destination, and enter the fields:
– Destination IP Prefix — Enter the destination IPv4 prefix. If all zeros
are entered, this represents a default route.
– Network Mask — Select the destination IPv4 mask.
– Prefix Length — Select the length of the destination IPv4 address
prefix.
Dell PowerConnect 55xx Systems User Guide
211