28
Boot time:
Elapsed time since system boot
Routing Table
A routing table contains the information necessary to forward a packet along the best path
toward its destination. Each packet contains information about its origin and destination. When
a packet is received, a network device examines the packet and matches it to the routing table
entry providing the best match for its destination. The table then provides the device with
instructions for sending the packet to the next hop on its route across the network.
Destination:
The IP address of the packet’s final destination. The destination can be an IP
address or a class-based, sub-netted, or super-netted network ID.
Gateway:
The IP address to which the packet is forward.
Netmask:
Includes directly-attached subnets, indirect subnets that are not attached to the
device but can be accessed through one or more hops, and default routes to use for certain
types of traffic or when information is lacking.
Flags:
Possible flags include
Î
U
: Route is up.
H
: Target is a host.
G
: Use Gateway
C
: Cache entry
!
:Reject route
