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    Using the J-Web Ping Host Tool

    You can ping a host to verify that the host can be reached over the network. The output is useful for diagnosing host and network connectivity problems. The device sends a series of ICMP echo (ping) requests to a specified host and receives ICMP echo responses.

    Alternatively, you can use the CLI ping command. (See Using the ping Command.)

    To use the ping host tool:

    1. Select Troubleshoot>Ping Host from the task bar.
    2. Next to Advanced options, click the expand icon.
    3. Enter information into the Ping Host page (see Table 1).

      Table 1: J-Web Ping Host Field Summary

      Field

      Function

      Your Action

      Remote Host

      Identifies the host to ping.

      This is the only required field.

      Type the hostname or IP address of the host to ping.

      Advanced Options

      Don't Resolve Addresses

      Determines whether to display hostnames of the hops along the path.

      • Suppress the display of the hop hostnames by selecting the check box.
      • Display the hop hostnames by clearing the check box.

      Interface

      Specifies the interface on which the ping requests are sent.

      Select the interface on which ping requests are sent from the list. If you select any, the ping requests are sent on all interfaces.

      Count

      Specifies the number of ping requests to send.

      Select the number of ping requests to send from the list.

      Don't Fragment

      Specifies the Don't Fragment (DF) bit in the IP header of the ping request packet.

      • Set the DF bit by selecting the check box.
      • Clear the DF bit by clearing the check box.

      Record Route

      Sets the record route option in the IP header of the ping request packet. The path of the ping request packet is recorded within the packet and displayed in the main pane.

      • Record and display the path of the packet by selecting the check box.
      • Suppress the recording and display of the path of the packet by clearing the check box.

      Type-of-Service

      Specifies the type-of-service (TOS) value in the IP header of the ping request packet.

      Select the decimal value of the TOS field from the list.

      Routing Instance

      Names the routing instance for the ping attempt.

      Select the routing instance name from the list.

      Interval

      Specifies the interval, in seconds, between the transmission of each ping request.

      Select the interval from the list.

      Packet Size

      Specifies the size of the ping request packet.

      Type the size, in bytes, of the packet. The size can be from 0 through 65,468. The device adds 8 bytes of ICMP header to the size.

      Source Address

      Specifies the source address of the ping request packet.

      Type the source IP address.

      Time-to-Live

      Specifies the time-to-live (TTL) hop count for the ping request packet.

      Select the TTL from the list.

      Bypass Routing

      Determines whether ping requests are routed by means of the routing table.

      If the routing table is not used, ping requests are sent only to hosts on the interface specified in the Interface box. If the host is not on that interface, ping responses are not sent.

      • Bypass the routing table and send the ping requests to hosts on the specified interface only by selecting the check box.
      • Route the ping requests using the routing table by clearing the check box.
    4. Click Start.

      The results of the ping operation appear in the main pane. If no options are specified, each ping response is in the following format:

      bytes bytes from ip-address: icmp_seq=number ttl=number time=time
    5. You can stop the ping operation before it is complete by clicking OK.

    Modified: 2017-09-13