Abstract
Chapter 2 discusses the netlink sockets implementation and how netlink sockets are used as a communication channel between the kernel and userspace. This chapter deals with the ICMP protocol, which is a Layer 4 protocol. Userspace applications can use the ICMP protocol (to send and receive ICMP packets) by using the sockets API (the best-known example is probably the ping utility). This chapter discusses how these ICMP packets are handled in the kernel and gives some examples.
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© 2014 Rami Rosen
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Rosen, R. (2014). Internet Control Message Protocol (ICMP). In: Linux Kernel Networking. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4302-6197-1_3
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DOI: https://doi.org/10.1007/978-1-4302-6197-1_3
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Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4302-6196-4
Online ISBN: 978-1-4302-6197-1
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