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Engineering
Computer Engineering
A vulnerability of TCP is that many TCP SYN segments can be sent from many different remote addresses. These addresses can be spoofed---that is, IP datagrams containing TCP SYN segments can be sent with a fake IP address in the header. What problem does this cause in the server? a. Every TCP SYN segment requires the operating system to reserve resources like buffer space in memory related to a connection that is never going to be completed. Eventually the resources wi become oversubscribed, and depleted, so no other clients can establish a connection with the server, effectively creating a denial-of-service (DoS) attack. O b. The server doesn't know what IP address to send a SYN/ACK packet to so the connection can be established. c. The SYN segments will have the wrong port number in the header, so the TCP segment will get delivered to the wrong process.

A vulnerability of TCP is that many TCP SYN segments can be sent from many different remote addresses. These addresses can be spoofed---that is, IP datagrams containing TCP SYN segments can be sent with a fake IP address in the header. What problem does this cause in the server? a. Every TCP SYN segment requires the operating system to reserve resources like buffer space in memory related to a connection that is never going to be completed. Eventually the resources wi become oversubscribed, and depleted, so no other clients can establish a connection with the server, effectively creating a denial-of-service (DoS) attack. O b. The server doesn't know what IP address to send a SYN/ACK packet to so the connection can be established. c. The SYN segments will have the wrong port number in the header, so the TCP segment will get delivered to the wrong process.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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A vulnerability of TCP is that many TCP SYN segments can be sent from many different remote addresses. These addresses can be spoofed---that is, IP datagrams containing TCP SYN segments can be sent with a fake IP address in the header. What problem does this cause in the server? a. Every TCP SYN segment requires the operating system to reserve resources like buffer space in memory related to a connection that is never going to be completed. Eventually the resources will become oversubscribed, and depleted, so no other clients can establish a connection with the server, effectively creating a denial-of-service (DoS) attack. O b. The server doesn't know what IP address to send a SYN/ACK packet to so the connection can be established. c. The SYN segments will have the wrong port number in the header, so the TCP segment will get delivered to the wrong process.
Transcribed Image Text:A vulnerability of TCP is that many TCP SYN segments can be sent from many different remote addresses. These addresses can be spoofed---that is, IP datagrams containing TCP SYN segments can be sent with a fake IP address in the header. What problem does this cause in the server? a. Every TCP SYN segment requires the operating system to reserve resources like buffer space in memory related to a connection that is never going to be completed. Eventually the resources will become oversubscribed, and depleted, so no other clients can establish a connection with the server, effectively creating a denial-of-service (DoS) attack. O b. The server doesn't know what IP address to send a SYN/ACK packet to so the connection can be established. c. The SYN segments will have the wrong port number in the header, so the TCP segment will get delivered to the wrong process.
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