User's Manual

UTT Technologies Chapter 5 System Status
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destination, the Device will choose the route with the lowest metric to forward the
packets.
 Use: It indicates count of lookups for the route.
 Age: It indicates the elapsed time (in seconds) since the route was created in the
routing table.
¾ Refresh: Click it to view the latest information in the list.
¾ Display Route Settings: Click it to go to the Advanced > Static Route > Static
Route List page to view the configured static routes settings.
Taking Figure 5-13 as an example, the following describes the different types of routes:
 0.0.0.0/0: It indicates a default static route. The Device uses a default route if no other
route matches the destination address included in a packet. The default route
forwards the packet to a default gateway, whose IP address is configured manually or
assigned dynamically by a PPPoE or DHCP server.
 127.0.0.0/8: It indicates a loopback route. The Class A network 127.0.0.0 is defined
as the loopback network. Addresses from that network are assigned to interfaces that
process data within the local system. These loopback interfaces do not access a
physical network. Once received a packet which matches the route, the Device will
send the packet to itself.
 200.200.202.0/24: It indicates a subnet route. The destination is a subnet. If no host
route matches the destination IP address included in a packet, the Device will use a
subnet route that matches the network ID of the destination IP address. The subnet
route forwards the packet to its gateway.
 192.168.16.1/32: It indicates a local host route (its inteface is local). Once received a
packet which matches the route, the Device will not forward it.
 224.0.0.0/4: It indicates a multicast route. Once received a multicast packet, the
Device will make copies and send them to all receivers that have joined the
corresponding multicast group.