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Configuring the Router to Operate in Symmetric Active Mode

To configure the local router to operate in symmetric active mode, include the peer statement at the [edit system ntp] hierarchy level:

[edit system ntp]
peer address <key key-number> <version value> <prefer>;

Specify the address of the remote system. You must specify an address, not a hostname.

To include an authentication key in all messages sent to the remote system, include the key option. The key corresponds to the key number you specify in the authentication-key statement, as described in Configuring NTP Authentication Keys.

By default, the router sends NTP version 4 packets to the remote system. To set the NTP version level to 1, 2 or 3, include the version option.

If you configure more than one remote system, you can mark one system preferred by including the prefer option:

peer address <key key-number> <version value> prefer;

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