Netgear GS748Tv5 - ProSAFE 48-port Gigabit Smart Switch Guia Do Administrador

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4.   
Configuring Routing
The switch supports IP routing. Use the menus under the Routing tab to manage routing on 
the system. 
When a packet enters the switch, the destination MAC address is checked to see if it 
matches any of the configured routing interfaces. If it does, then the switch searches the host 
table for a matching destination IP address. If an entry is found, then the packet is routed to 
the host. If there is no matching entry, then the switch performs a longest prefix match on the 
destination IP address. If an entry is found, then the packet is routed to the next hop. If there 
is no match, then the packet is routed to the next hop specified in the default route. If there is 
no default route configured, then the packet is passed to the software to be handled 
appropriately.
The routing table can have entries added either statically by the administrator or dynamically 
via a routing protocol. The host table can have entries added either statically by the 
administrator or dynamically via ARP.
This chapter contains the following sections.