Directly Connected Routing Table Entries

In this article we will discuss Directly Connected Routing Table Entries, will make brief discussion on Directly connected routing entries. In last article we discuss about Router Packet Forwarding Decision – How routing works.

Directly Connected Routing Table Entries

directly connected network is a network that is directly attached to one of the router interfaces. A routing table is a set of rules, often viewed in table format, that is used to determine where data packets traveling over an Internet Protocol (IP) network will be directed. All IP-enabled devices, including routers and switches, use routing tables. When a router interface is configured with an IP address and subnet mask, the interface becomes a host on that attached network. When a router interface is configured with an IPv4 address, a subnet mask, and is activated, the following two routing table entries are automatically created:

Directly Connected Routing Table Entries
Directly Connected Routing Table Entries

  • C – Identifies a directly-connected network. Directly-connected networks are automatically created when an interface is configured with an IP address and activated.
  • L – Identifies that this is a local interface. This is the IPv4 address of the interface on the router.

The figure describes the routing table entries on R1 for the directly-connected network These entries were automatically added to the routing table when the GigabitEthernet 0/0 interface was configured and activated. Click each plus sign to view more information about directly-connected routing table entries.

Route Source

Identifies how the network was learned by the router.

Destination network

Identifies the destination network and how it was learned.

Outgoing interface

Identifies the exit interface to use to forward a packet toward the final destination.

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