Test connectivity packet sender verification#
Test connectivity packet sender code#

Pressing Enter displays the next line and pressing the spacebar displays the next set of lines. At the end of the paused output, the -More- text displays.

Test connectivity packet sender verification#

Other useful IPv6 verification commands include:Ĭommands that generate multiple screens of output are, by default, paused after 24 lines. Along with the link-local address and global unicast address, the output includes the multicast addresses assigned to the interface, beginning with prefix FF02. The show ipv6 interface gigabitethernet 0/0 command output shown in Figure 1-21 displays the interface status and all of the IPv6 addresses belonging to the interface. An IPv6 network interface is required to have a link-local address, but not necessarily a global unicast address. A link-local address is automatically added to an interface whenever a global unicast address is assigned. The other address, which begins with FE80, is the link-local unicast address for the interface. One address is the IPv6 global unicast address that was manually entered. The output displays two configured IPv6 addresses per interface. This is the same as the Status and Protocol columns in the equivalent IPv4 command.

The “up/up” output on the same line as the interface name indicates the Layer 1/Layer 2 interface state. The entire output of the show ipv6 interface brief command in Figure 1-20 can be viewed in the online course on page 1.1.4.2 graphic number 1. show running-config interface interface-id: Displays the commands configured on the specified interface.įigure 1-17 displays the output of the show ip interface brief command.

Test connectivity packet sender code#

In previous IOS versions, only a single entry with the code 'C' will appear. In Cisco IOS 15, active interfaces should appear in the routing table with two related entries identified by the code 'C' (Connected) or 'L' (Local).

show ip route: Displays the contents of the IPv4 routing table stored in RAM.

show ip interface brief: Displays a summary for all interfaces, including the IPv4 address of the interface and current operational status.

The following three commands are especially useful to quickly identify an interface status: There are several show commands that can be used to verify the operation and configuration of an interface. This is an important step and should be done before any other configurations are added to the router. The first task to undertake once the basic settings and interfaces are configured is to verify and validate the configured settings. Verify Connectivity of Directly Connected Networks (1.1.4)