Commands used for WAN configuration and testing connectivity

Last Updated : Nov 06, 2012 |

After configuring the new interface, you can perform the following tests to verify that the new interface is operating correctly.

  • For the USB-modem interface and the Fast Ethernet interface, use the show interfaces command to verify that all line signals are up. For example:

    DCD = up DSR = up DTR = up RTS = up CTS = up

  • Use the show traffic-shape command to view traffic shaping configuration parameters for all interfaces.

  • Use the show ip interface command to display information about IP interfaces. To display information about a specific interface, include the name of the interface as an argument. To display information about the interface of a specific IP address, include the IP address as an argument.

  • Enter show running-config to display the configuration running on the device.

  • Enter show startup-config to display the configuration loaded at startup.

  • Use the ping command to send ICMP echo request packets to another node on the network. Each node is periodically pinged and checked if an answer was received. This checks host reachability and network connectivity.