ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación descargar pdf (Pagina 278)

as a gateway capable of managing all these network keys. The 8950 switch from

AsokaUSA does this by being capable of managing up to 253 PLC network keys and

1,024 users at the same time. Information on this product is available at the follow-

ing address:

http://www.asokausa.com/products/commercial/pluglan_8950.php

Management of Several PLC Networks and Separation of PLC Clients in

HomePlug AV

Among the functionalities provided by HomePlug AV that are not available in HomePlug

1.0 and Turbo, the management of several network keys in the same device enables a PLC

network to configure the central CCo device with several network keys and each of the

other network PLC devices with a single network key. This implies that the PLC devices do

not see each other and only see the central device used as a level 2 gateway for the network

PLC components. So, an architecture of the FAI type can be created, in which each compo-

nent of the network only has access to the Internet and not to the other components of the

electrical local area network. Because of its flexibility, this PLC network type can be modi-

fied to enable the network components to place on the same IP network while having

access to the Internet.

Configuring PLC Security

The security of a corporate network is essentially based on the collection of infor-

mation and the monitoring used for determining the origin of an attack.

The important point of the PLC network security resides in the configuration of

a correct network key for the optimum encryption of the data exchanged over the

electrical network (in the case of HomePlug products, the NEK must be long and

combine uppercase and lowercase characters as well as 20-character numerals).

Security Parameters 259

Figure 11.8 Architecture of a PLC network connected to the corporate network by means of a

firewall

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ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación Pagina 278