December 2013
Beginner to intermediate
648 pages
18h 28m
English
Content preview from Linux Kernel Networking: Implementation and Theory
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CHAPTER 7
Linux Neighbouring Subsystem
This chapter discusses the Linux neighbouring subsystem and its implementation in Linux. The neighbouring subsystem is responsible for the discovery of the presence of nodes on the same link and for translation of L3 (network layer) addresses to L2 (link layer) addresses. L2 addresses are needed to build the L2 header for outgoing packets, as described in the next section. The protocol that implements this translation is called the Address Resolution Protocol (ARP) in IPv4 and Neighbour Discovery protocol (NDISC or ND) in IPv6. The neighbouring subsystem provides a protocol-independent infrastructure for ...
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