Contents
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Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
OL-25340-01
System Clock 4-2
Understanding Network Time Protocol 4-2
Configuring NTP 4-3
Default NTP Configuration 4-4
Configuring NTP Authentication 4-4
Configuring NTP Associations 4-6
Configuring NTP Broadcast Service 4-7
Configuring NTP Access Restrictions 4-8
Configuring the Source IP Address for NTP Packets 4-10
Displaying the NTP Configuration 4-11
Configuring Time and Date Manually 4-11
Setting the System Clock 4-11
Displaying the Time and Date Configuration 4-12
Configuring the Time Zone 4-12
Configuring Summer Time (Daylight Saving Time) 4-13
Configuring a System Name and Prompt 4-14
Configuring a System Name 4-15
Understanding DNS 4-15
Default DNS Configuration 4-16
Setting Up DNS 4-16
Displaying the DNS Configuration 4-17
Creating a Banner 4-17
Default Banner Configuration 4-18
Configuring a Message-of-the-Day Login Banner 4-18
Configuring a Login Banner 4-20
Managing the MAC Address Table 4-21
Building the Address Table 4-21
MAC Addresses and VLANs 4-22
Default MAC Address Table Configuration 4-23
Changing the Address Aging Time 4-23
Removing Dynamic Address Entries 4-24
Configuring MAC Change Notification Traps 4-24
Configuring MAC Move Notification Traps 4-26
Configuring MAC Threshold Notification Traps 4-28
Adding and Removing Static Address Entries 4-29
Configuring Unicast MAC Address Filtering 4-30
Disabling MAC Address Learning on a VLAN 4-32
Configuring Disable MAC Address Learning 4-32
Usage Guidelines 4-33
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