IPv4 and IPv6 ICMP Configuration (S-, K-Series)
The Internet Control Message Protocol (ICMP) is a protocol in the Internet Protocol Suite. It is chiefly used by the operating systems of networked computers to send error messages when a requested service is not available or a host or router could not be reached. ICMPv6 is the IPv6 version of ICMP. The router can be configured to:
- Enable sending ICMP destination unreachable messages on an interface using the ip icmp unreachable or ipv6 icmp unreachable command
- Enable sending of ICMP redirect messages on an interface using the ip icmp redirects or ipv6 icmp redirects command
- Enable sending ICMP echo-reply messages on an interface using the ip icmp echo-reply or ipv6 icmp echo-reply command.