Avaya Configuring Data Encryption Services User Manual download pdf (Page 27)

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Chapter 2

Considerations Before You Enable Encryption

This chapter presents some essential points that you should consider in preparing

to configure encryption at your site.

Requirements for Enabling Encryption

To configure encryption, you must configure WEP parameters and either PPP or

frame relay encryption parameters. You must enable encryption for both the line

and circuit WEP parameters, and for either PPP or frame relay.

If you enable encryption for the WEP line and circuit, but not for a PPP or frame

relay protocol, data does not travel over the network.

If you enable encryption for the line, circuit, and protocol, and some other

attribute for encryption is misconfigured, WEP drops data rather than sending it

unencrypted.

Selecting Encryption Strength

Both sides of a link must use the same encryption strength. Note that you can

select both encryption strengths, enabling a router that has 56-bit encryption

strength to use 40-bit encryption with a router that has only 40-bit encryption.

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Avaya Configuring Data Encryption Services User Manual Page 27