Jul 06, 2011 · Raw UDP Socket and ICMP Destination (Port) Unreachable Each UDP src and dest port is unique and I need access to IP and UDP header fields. I can stream and process data (in and out) at 100 mbps in linux-rt kernel with very low jitter < 250 usec, 10 usec nominal.
UDP is the stateless, connectionless protocol of IP. ICMP is for diagnostics (still part of IP). If you plan to take the ICND1 or ICND2 (or CCNA) you'll need to know the above, but possibly you're studying for a different test and were just asking about ACLs because CCNA covers them too? No Traceroute (ICMP/UDP/TCP) from Azure Sep 05, 2019 ICMP differs from transport protocols such as TCP and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed by end-user network applications (with the exception of some diagnostic tools like ping and traceroute).
What is ICMP? The Internet Control Message Protocol Explained
The appliance monitors UDP or ICMP traffic to a specified destination or to any destination. If the rate of UDP and ICMP packets per second exceeds the allowed threshold for a specified duration of time, the appliance drops subsequent UDP or ICMP packets to protect against a flood attack.
Internet Control Message Protocol (ICMP) is used to perform many network 'housekeeping' tasks. UDP (User Datagram Protocol) is a connectionless protocol and
networking - Does NAT spoof TCP or UDP port in ICMP