![]() The value of Trace Interval and the number of intervals can be explicitly set in pingplotter. Once pingplotter has sent a series of packets with the increasing TTL values, it restarts the sending process again with a TTL of 1, after waiting Trace Interval amount of time. ![]() The size of the ICMP echo request message can be explicitly set in pingplotter by selecting the menu item Edit-> Options->Packet Options and then filling in the Packet Size field. Download and install pingplotter, and test it out by performing a few traceroutes to your favorite sites. A nicer Windows traceroute program is pingplotter, available both in free version and shareware versions at. Windows Tracert – the tracert program (used for our ICMP Wireshark lab) provided with Windows does not allow one to change the size of the ICMP echo request (ping) message sent by the tracert program.Ping – software utility that is used to test the reachability of a host on an IP network.Traceroute – a diagnostic tool for displaying the route and measuring transit delays of packets across an IP network.Internet Control Message Protocol (ICMP) – a supporting protocol for IP that is used by network devices to send error message and operational information.Internet Protocol (IP) – the principle communications protocol in the Internet protocol suite for relaying packets across network boundaries.Typically used for DNS, SNMP, Internet Telephone, and Streaming Media User Datagram Protocol (UDP) – a connectionless, unreliable protocol.Transport Control Protocol (TCP) – the Internet’s transport-layer, connection-oriented, reliable transport protocol. ![]() ![]()
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