|
AVG RTT (ms) n/a ms |
MIN RTT (ms) n/a ms |
MAX RTT (ms) n/a ms |
MDEV (ms) n/a ms |
|
Packet Loss 100.00 % |
Runtime 1019ms |
Packets Send 6 |
Packets Recv. 0 |
What you should know about ICMP (Ping).
The Internet Control Message Protocol (ICMP) is used in computer networks to exchange information and error messages via the Internet Protocol in version 4 (IPv4). A similar protocol called ICMPv6 exists for IPv6.
ICMP is part of IPv4, but is treated as an independent protocol. Every router and computer is expected to "understand" ICMP. Most ICMP packets contain diagnostic information: They are sent back to the source by the router when the router drops packets, for example because the destination is unreachable or the TTL has expired. The following principles apply:
- ICMP uses IP as the communication base by interpreting itself as a higher layer protocol, i.e. ICMP messages are encapsulated in IP packets.
- ICMP detects some error conditions, but does not make IP a reliable protocol.
- ICMP analyzes errors in every IP packet except those carrying an ICMP message.
- ICMP messages are not sent in response to packets to destination addresses that are multicast or broadcast addresses.
- ICMP messages reply only to a unique source IP address.
A DynDNS Service from IPv64.net
The DynDNS service of IPv64.net is free of charge and usable in all common routers and systems.
You have the choice between many different domain names.
Healthcheck und Monitoring Service
The IPv64.net Healthchecks monitor your services, servers and endpoints. Receive notifications when your services fail.
This monitoring service is free with all features.
Register now
Registration with IPv64 is free of charge and immediately available for you.