![]() ![]() It is because there is a part where communication does not pass through the firewall etc of the NW device, or the ICMP is stopped by Windows firewall, firewalld, security software on the opposite host side.Įxceptionally, in the case of Ping within the same segment, it is displayed like this even if there is no ARP response from the destination host. In this state, it can not be determined whether ICMP Echo Request is packet loss in the middle of the route or ICMP Echo Reply is packet loss. ![]() If this message is shown, it means "Although ICMP Echo Request was sent to the destination IP, the ICMP Echo Reply did not return for the timeout (default 3 seconds) elapsed" If you can not understand below, please learn about the following two about ICMP.Ībout ICMP and ICMP type and codes Request timed out The cause depends on the displayed result. I will describe it later, Even if it is not the ICMP Echo Reply from the destination IP (even in Destination Unreachable), if any ICMP packet is received, it will not be counted as a loss. "Lost = 0" means "In response to ICMP Echo Request transmitted multiple times (default 4 times in the above example), any kind of ICMP packet was received each time". If you sent "ICMP Echo Request" to dst IP and are received "ICMP Echo Reply" from the IP, it is displayed as above regarded as success.
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