Echelon OpenLDV User Manual

Page 118

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110

Extending xDriver

Field

Description

Next Authentication Key

This field represents the next authentication key to be used by the

RNI. The next authentication key is usually the same as the

current authentication key. The authentication key must be

entered as a 32-character hexadecimal string representing a 128-

bit MD5 key. For example:

0102030405060708090A0B0C0D0E0F10

You can initiate a change to the authentication key used by the

RNI by changing this field to a value different than the current

authentication key. The authentication key configured into the

RNI will then be updated to match this field.
Setting this field to all 0s causes xDriver to use the default

authentication key as the next key for the RNI. The default

factory authentication key is not secure.
When no change to the current authentication key is desired, this

key must be the same as the current authentication key. For more

information about how the lookup extension component handles

authentication, see Authentication Key Handling on page 111.

LNS Network Name

The name of the LNS network to be opened. This field is optional,

and only used if an LNS Server is the client and the session is an

uplink session, because the network name is specified manually

within the LNS application in a downlink session. For an example

of such an application, see Opening a Single Remote Network With

xDriver on page 138. The LNS network name can be a maximum

of 85 characters.

Additional Downlink

Packet Header
Additional Downlink

Packet Trailer

These fields are not required under most circumstances, and are

only applicable to downlink sessions. They can be used to specify

a series of bytes to be prepended or appended to every packet sent

during a downlink session if there is an intermediate proxy

between the OpenLDV application and the RNI. These bytes can

be used to provide routing information that the proxy might

require.
When you configure an xDriver profile that uses these properties,

you might also need to select Send Routing Packet, which causes

xDriver to send the proxy a null packet (with the header and

trailer bytes specified here) when the connection is established.

This selection provides the proxy with the information that it

requires to route the connection properly. For more information,

see xDriver Profiles on page 134.

Encryption Type

The type of encryption used by the RNI. Currently, xDriver

supports RC4 encryption only. Selected packets are encrypted

using an RC4 encryption algorithm if this option is selected.

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