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Optical Networking Systems IP Management Solutions by Randy Zhang

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Chapter 3. Proxy ARP and ARP Sniffing

As briefly introduced in Chapter 2, “Node Addressing Schemes,” proxy ARP is used in ONS GNEs to simplify ENE addressing and routing; proxy ARP may not lead to optimal routing when multiple paths are available. This chapter discusses the details of proxy ARP and how it is used in ONS. Issues related to proxy ARP and appropriate solutions are provided.

ARP Sniffing is something entirely different. Although it too is implemented in ONS to simplify addressing, it is done for ease of access in the field by technicians. This little-known feature becomes quite handy when you need to access large numbers of NEs that are in different IP subnets.

Before proxy ARP and ARP Sniffing are described in this chapter, however, ...

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