Siemens RUGGEDCOM ROX II, User Manual

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Chapter 17
Time Services
RUGGEDCOM ROX II
CLI User Guide
740 Deleting a Server Restriction
Parameter Description
• noserve: Denies all packets except ntpq(8) and ntpdc(8) queries.
• noquery: Denies ntpq(8) and ntpdc(8) queries.
• nopeer: Denies packets which result in mobilizing a new association.
• nomodify: Denies ntpq(8) and ntpdc(8) queries attempting to modify the state of the
server; queries returning information are permitted.
• lowpriotrap: Declares traps set by matching hosts to be low priority.
• limited: Denies service if the packet spacing violates the lower limits specified in the
NTP discard setting.
• kod: Sends a Kiss-o'-Death (KoD) packet when an access violation occurs.
• ignore: Denies all packets.
4. Type commit and press Enter to save the changes, or type revert and press Enter to abort.
Section 17.8.6.3
Deleting a Server Restriction
To delete an NTP server restriction, do the following:
1. Make sure the CLI is in Configuration mode.
2. Delete the restriction by typing:
no
services ntp restrict address mask
Where:
•
address is the IP address to match. The address can be a host or network IP address, or a valid host DNS
name.
•
mask
is the mask used to match the address. A value of 255.255.255.255 indicates the address is treated
as the address of an individual host.
3. Type commit and press Enter to save the changes, or type revert and press Enter to abort.
Section 17.9
Managing NTP Broadcast/Multicast Clients
Set the device to NTP broadcast or multicast client mode if the NTP server issues regular time-of-day
advertisements.
CONTENTS
• Section 17.9.1, “Enabling and Configuring NTP Multicast Clients”
• Section 17.9.2, “Enabling and Configuring NTP Broadcast Clients”
• Section 17.9.3, “Managing NTP Broadcast/Multicast Addresses”