3com S7906E Instruccion De Instalación

 

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The local clock of Device A is to be configured as a reference source, with the stratum level of 2. 

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Device B works in the client mode and Device A is to be used as the NTP server of Device B, with 

Device B as the client. 

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NTP authentication is to be enabled on both Device A and Device B. 

Figure 1-11 Network diagram for configuration of NTP client/server mode with authentication 

 

 

1)  Configuration on Device A:  

# Specify the local clock as the reference source, with the stratum level of 2.  

<DeviceA> system-view 

[DeviceA] ntp-service refclcok-master 2 

2)  Configuration on Device B:  

<DeviceB> system-view 

# Enable NTP authentication on Device B.  

[DeviceB] ntp-service authentication enable 

# Set an authentication key.  

[DeviceB] ntp-service authentication-keyid 42 authentication-mode md5 aNiceKey 

# Specify the key as a trusted key.  

[DeviceB] ntp-service reliable authentication-keyid 42 

# Specify Device A as the NTP server.  

[DeviceB] ntp-service unicast-server 1.0.1.11 authentication-keyid 42 

Before Device B can synchronize its clock to that of Device A, you need to enable NTP authentication 

for Device A.  

Perform the following configuration on Device A: 

# Enable NTP authentication.  

[DeviceA] ntp-service authentication enable 

# Set an authentication key.  

[DeviceA] ntp-service authentication-keyid 42 authentication-mode md5 aNiceKey 

# Specify the key as a trusted key.  

[DeviceA] ntp-service reliable authentication-keyid 42 

# View the NTP status of Device B after clock synchronization.  

[DeviceB] display ntp-service status 

 Clock status: synchronized 

 Clock stratum: 3 

 Reference clock ID: 1.0.1.11