Remove flags from a restrict entry, Delete a restrict entry, Configure a trap in the server – Alcatel Carrier Internetworking Solutions Omni Switch/Router User Manual

Page 319

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NTP Access Control Menu

Page 12-41

Remove Flags from a Restrict Entry

It is possible to place restriction flags on specific

NTP

entities in relation to the switch. Restric-

tion flags prevent messages or information coming from the

NTP

entity from affecting the

switch.

To remove a restriction flag from an

NTP

entity, enter the

ntpmres

command as shown:

ntpmres <address> <mask> <restriction>

where

<address>

is the

IP

address of the

NTP

entity,

<mask>

is the entity’s subnet mask, and

<restriction>

is the specific flag you want to remove from the entity. For example, to remove

an

ignore

restriction from an entity with address 1.1.1.1 and a subnet mask of 255.255.0.0,

enter the following:

ntpmres 1.1.1.1 255.255.0.0 ignore

Delete a Restrict Entry

To remove an entry completely from the restriction list, enter the

ntpdres

command in the

following manner:

ntpdres <address> <mask>

where

<address>

is the

IP

address of the

NTP

entity, and

<mask>

is the entity’s subnet mask.

For example to remove an entity with address 1.1.1.1 and a subnet mask of 255.255.0.0, enter
the following:

ntpmres 1.1.1.1 255.255.0.0

This entity will no longer be listed in the restriction list and has no restriction flags placed on
messages it sends to the switch.

Configure a Trap in the Server

The

ntpctrap

command allows you to set a trap receiver for the given address and port

number. The trap receiver will log event messages and other information for the server in a
log file.

To create a trap receiver, enter the

ntpctrap

command in the following manner:

ntpctrap <address> [<port>] [<interface>]

where address is the IP address of the switch. There are two optional items you can specify:

port

The port on the switch used for sending

NTP

messages. If no

port is specified, a default port of 18447 is used.

Note

This is the

TCP

and

UDP

definition of a port, not a

switch interface port.

interface

The local interface address for this

NTP

entity. If no interface is

specified, the interface for the local

NTP

entity is used. For

more information on interface addresses, see Display Peer
Summary Information
on page 12-16.

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