Tab. 7.3, Mask calculation of default value – Siemens S223 User Manual
Page 171
User Manual UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5
A50010-Y3-C150-2-7619 171
To configure interval to transmit ICMP message, the administrator should configure the
type of message and the interval time.
Use the following command, to configure the interval for transmit ICMP message.
Command Mode
Description
ip icmp interval rate-mask MASK
Global
Configures the interval for transmit ICMP message.
MASK: user should input hexadecimal value until
0xFFFFFFFF. The default is 0x1818.
If mask that is input as hexadecimal number is calculated as binary number “1” means
“Status ON”, “0” means “Status OFF”. In binary number, if the digit showed as “1”
matches with the value of ICMP message. It means ICMP Message is selected as “Status
ON”. Digit value starts from 0.
For example, if hexadecimal number “8” is changed as binary number, it is “1000”. In
1000, 0 digit is “0” and 1 digit is “0”, 2 digit is “0” and 3 digit is “1”. The digit showed as “1”
is “3” and ICMP_DEST_UNREACH means ICMP value is “3”. Therefore,
ICMP_DEST_UNREACH is chosen the message of limiting the transmission time.
Default is 0x1818. If 1818 as hexadecimal number is changed as binary number, it is
1100000011000. By calculating from 0 digit, 3 digit, 4 digit, 11 digit, 12 digit is “1” and it is
“STATUS ON”. Therefore, the message that corresponds to 3, 4, 11, and 12 is chosen as
the message limiting the transmission rate.
Tab. 7.3 shows the result of mask calculation of default value.
Type Status
ICMP_ECHOREPLY (0)
OFF
ICMP_DEST_UNREACH (3)
ON
ICMP_SOURCE_QUENCH (4)
ON
ICMP_REDIRECT (5)
OFF
ICMP_ECHO (8)
OFF
ICMP_TIME_EXCEEDED (11)
ON
ICMP_PARAMETERPROB (12)
ON
ICMP_TIMESTAMP (13)
OFF
ICMP_TIMESTAMPREPLY (14)
OFF
ICMP_INFO_REQUEST (15)
OFF
ICMP_INFO_REPLY (16)
OFF
ICMP_ADDRESS (17)
OFF
ICMP_ADDRESSREPLY (18)
OFF
Tab. 7.3
Mask Calculation of Default Value