![]() Select Programs and Features > Turn Windows Features on or off:Ĥ. Press the Start button > Control Panel:ģ. Telnet is disabled on Windows by default. Unable to resolve target system name ĭomain is not registered or does not exist. When a website is unreachable or slow, traceroute allows you to see where the connection fails or has delays. Traceroute provides you with the information hop by hop. When it’s reached, the Port Unreachable message is sent in return, which defines the time length of the final hop. ![]() Traceroute determines that the packet has reached the destination by including a port number that is outside the normal range. When it reaches 0, the packet is discarded, and the router returns an error message. When a router receives the packet, it sends a Time Exceeded message, which provides an opportunity to determine the time required for the hop to the router.Įach time a packet is passed to a new router, the TTL is decreased by 1. Increasing TTL in such a manner, it resends the packet so that you can reach the first, the second and other routers on the way to the destination. The first packet has a TTL of 1, the second packet has a TTL of 2, etc. ![]() When you start the traceroute command, it sends a packet (using the Internet Control Message Protocol or ICMP) with a time limit value (known as the 'time to live' - TTL).
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