System Management
7450 ESS OS Basic System Configuration Guide Page 345
Parameters key-id — Configure the authentication key-id that will be used by the node when transmitting or receiving
Network Time Protocol packets.
Entering the authentication-key command with a key-id value that matches an existing configuration
key will result in overriding the existing entry.
Recipients of the NTP packets must have the same authentication key-id, type, and key value in order to
use the data transmitted by this node. This is an optional parameter.
Default None
Values 1 — 255
key — The authentication key associated with the configured key-id, the value configured in this parameter
is the actual value used by other network elements to authenticate the NTP packet.
The key can be any combination of ASCII characters up to 32 characters in length for message-digest
(md5) or 8 characters in length for des (length limits are unencrypted lengths). If spaces are used in the
string, enclose the entire string in quotation marks (“.”).
hash — Specifies the key is entered in an encrypted form. If the hash or hash2 parameter is not used, the
key is assumed to be in a non-encrypted, clear text form. For security, all keys are stored in encrypted
form in the configuration file with the hash or hash2 parameter specified.
hash2 — Specifies the key is entered in a more complex encrypted form that involves more variables then
the key value alone, this means that hash2 encrypted variable can’t be copied and pasted. If the hash or
hash2 parameter is not used, the key is assumed to be in a non-encrypted, clear text form. For security,
all keys are stored in encrypted form in the configuration file with the hash or hash2 parameter
specified.
type — This parameter determines if DES or message-digest authentication is used.
This is a required parameter; either DES or message-digest must be configured.
Values des — Specifies that DES authentication is used for this key
message-digest — Specifies that MD5 authentication in accordance with RFC 2104 is
used for this key.
broadcast
Syntax broadcast [router router-name] {interface ip-int-name} [key-id key-id] [version version] [ttl ttl]
no broadcast [router router-name] {interface ip-int-name}
Context config>system>time>ntp
Description This command configures the node to transmit NTP packets on a given interface. Broadcast and multicast
messages can easily be spoofed, thus, authentication is strongly recommended.
The no form of this command removes the address from the configuration.
Parameters routerSpecifies the router name used to transmit NTP packets. Base is the default. Select management
to use the management port (Ethernet port on the
CPM).
Default Base, managementBase
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