 the server for which it has to allocate certain memory which is released either after the server receives the final ACK message or after the expiration of half-open connection state. Half-open connections are created by the attacking hosts through jesting source IPs in SYN messages or neglecting SYN-ACKs which results in the victim never receiving the final ACK message. An inordinate amount of half-open connections will flood the memory space as only a limited size of space is measured in its process table. The attacking hosts are capable of circulating imposture TCP SYN packets requesting connections at an exorbitant rate which is much higher than the expiration rate of half-open connections. Consequently, there will be no compliance of any new incoming connection which will incapacitate the victim to provide services. ICMP Smurf Flooding ICMP is utilized to certify the response status of a computer in the Internet which is analyzed by sending an ICMP echo request packet to a computer. After receiving the request packet, the computer responds by returning an ICMP echo reply packet. The attacking hosts counterfeit ICMP echo requests by having the victim's address as the source address and the broadcast address of these outlying networks as the destination address during a smurf attack. The crafted packets are broadcasted to all computers on a network if the firewall or router of the outlying network does not filter any such packet. The ICMP echo reply packets are sent back to the victim by the computers in the request packets due to which the source network becomes clogged up. Downloaded: 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 Analysis of Issues in SDN Security and Solutions UDP Flooding The current networks and systems have assimilated new security earmarks to prevent TCP and ICMP attacks. This is accomplished by plating and overhauling the implementation of TCP and ICMP protocols. Despite this, the attacker can impoverish the victim's connection resources by dispatching an i