1074 | System Time and Datew w w . d e l l . c o m | s u p p o r t . d e l l . c o m To disable NTP on an interface, use the following command in the INTERFACE mode:To view whether NTP is configured on the interface, use the show config command in the INTERFACEmode. If ntp disable is not listed in the show config command output, then NTP is enabled. (The showconfig command displays only non-default configuration information.)Configure a source IP address for NTP packetsBy default, the source address of NTP packets is the IP address of the interface used to reach the network.You can configure one interface’s IP address to be included in all NTP packets.To configure an IP address as the source address of NTP packets, use the following command in theCONFIGURATION mode:To view the configuration, use the show running-config ntp command (Figure 38) in the EXEC privilegemode.Command Syntax Command Mode Purposentp disable INTERFACE Disable NTP on the interface.Command Syntax Command Mode Purposentp source interface CONFIGURATION Enter the following keywords and slot/port or number information:• For a 1-Gigabit Ethernet interface, enter the keywordGigabitEthernet followed by the slot/port information.• For a loopback interface, enter the keyword loopback followed bya number between 0 and 16383.• For a port channel interface, enter the keyword lag followed by anumber from 1 to 255 for TeraScale and ExaScale, 1 to 32 forEtherScale.• For a SONET interface, enter the keyword sonet followed by theslot/port information.• For a 10-Gigabit Ethernet interface, enter the keywordTenGigabitEthernet followed by the slot/port information.• For a VLAN interface, enter the keyword vlan followed by anumber from 1 to 4094.E-Series ExaScale platforms support 4094 VLANs with FTOSversion 8.2.1.0 and later. Earlier ExaScale supports 2094VLANS.
