Avaya Configuring Data Encryption Services Manuel d'utilisateur télécharger pdf (Page 50)

Configuring Data Encryption Services

3-20

308618-14.00 Rev 00

Select the encryption strength for this line.

Encryption is available in two versions, regular and strong. The standard

router software includes encryption that uses regular encryption, that is, 40-bit

keys. Nortel Networks also offers a strong encryption option that uses 56-bit

keys. Strong encryption is generally available only in the United States and

Canada.

Select the encryption strength that is appropriate for your network. Note that

you can select both encryption strengths. This option enables a system that

has 56-bit encryption strength to support secure links with either 40-bit and

56-bit strength encryption sites. If you select both, WEP uses 56-bit

encryption if both sides of the link can support it.

Set the change rates for the TEK.

The TEK changes depending on the values of the TEK Change Seconds

parameter and TEK Change (Bytes) parameter.

The TEK Change Bytes parameter sets the number of bytes between changes

in the value of the TEK.

To set the TEK Change Bytes parameter for a line:

Site Manager Path

You do this System responds

1. Set the

Cipher Mode Mask

parameter.

Click on

Help

or see the parameter

description on page A-4.

2. Click on

Apply

. The WEP Line Parameters window

remains open.

Site Manager Path

You do this System responds

1. Set the

TEK Change (Bytes)

parameter.

Click on

Help

or see the parameter

description on page A-5.

2. Click on

Apply

. The WEP Line Parameters window

remains open.

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Avaya Configuring Data Encryption Services Manuel d'utilisateur Page 50

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