If you receive quick responses from the Online Ping tool, while pings from your local computer are problematic, it might indicate a local problem with either your connection or the way the host treats your location. Furthermore, it might be possible for Network Tools to reach the host, while your computer might not be able to reach the host (or vice versa). It may not be a good indicator of how fast your local machine can connect to and communicate with the host. The round-trip time presented to you by the Online Ping tool tells you how quickly Network Tools can connect to the host. To check the availability of resources on your network, you will need a local ping tool. Local Pingsīecause the Online Ping tool runs using Network Tools’ infrastructure and not on your local machine, you cannot use it to test internal addresses on your local network. Some hosts may accept requests from a limited range of IP Addresses (such as those originating in its own country) and may not respond to requests from the Online Ping tool. If a host occasionally responds while timing out in other circumstances, it may be utilizing a poor connection or be handling a high number of requests for which it lacks the resources to process efficiently. As such, the lack of a response doesn’t conclusively prove that a host is unavailable (though it may be unavailable to communicate with your machine). In general, a publicly-accessible server should always respond, whereas the firewalls on many other types of machines block pings by default.
Some firewalls block echo requests to prevent distributed denial of service (DDoS) attacks, to reduce the visibility of the host, or even by mistake.
However, this may not always be the case.
Per RFC 1122, “Requirements for Internet Hosts,” each host must send an echo reply when pinged. The tool sends an echo request packet to the host and listens for an echo reply packet. As such, any functioning host on the internet should respond to the pings sent by the tool. The Online Ping tool uses the Internet Control Message Protocol (ICMP), which is an integral part of the Internet Protocol (IP). As such, you cannot rely on the responses to provide you with consistent, trustworthy information. You can perform a broadcast (multiple-IP address) ping (eg, 104.24.255.255), but the hosts covered are not required to respond.
#Ipv6 ping transmit failure home network code
One common error code is 1214 (transmit failed) when pinging an unreachable or non-existent host.
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