Traceroute Device

How to Create Devices and Targets

• • Creating a Device
  • Adding Several Targets within a Single Device

Creating a Target

Hostname

Enter the server address to be monitored.  This could be the URL or the IP address.

Time Validation Threshold (in milliseconds)

This setting specifies the maximum time, in seconds, that the system will wait for a response from the target resource. If the response is not received within the defined time, the system flags it as an error.

Ignore Protocol Errors

Selecting No will cause the task to fail any time a node along the path returns an error. It’s common for traceroute requests to encounter one or more timeouts from intermediate nodes. These timeouts do not indicate a failed request — they typically mean the node took too long to respond, triggering a retry. As a result, you may see several timeouts, but the task can still complete the full traceroute. For more information, see the Dotcom-Monitor  graphical traceroute tool here.

Due to this behavior, the Ignore Protocol Errors option is enabled by default, and we do not recommend changing it. Otherwise, your reports may show significantly more errors from nodes outside of your control, even when those nodes respond on a second or third attempt.

DNS Options

The DNS Options feature allows users to choose how domain name server (DNS) requests are conducted during a monitoring task.

To specify the mode of resolving hostnames, in the DNS Resolve Mode section, select one of the available modes. For more details on the feature configuration, see DNS Mode Options.

The Custom DNS Hosts section allows to set up the mapping of IP addresses to hostnames. IPv6 and IPv4 DNS resolution is supported.

To specify the mapping, enter the IP address and the hostname in the corresponding fields.

See also: DNS Mode Options.