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Siemens S323 User Manual

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UMN:CLI                                                                                                                                                              User  Manual 
SURPASS hiD 6615 S223/S323 R1.5 
170                                                                         A50010-Y3-C150-2-7619 
Type Value Type Value 
ICMP_ECHOREPLY 0 
ICMP_DEST_UNREACH 
3 
ICMP_SOURCE_QUENCH  
4 
ICMP_REDIRECT 
5 
ICMP_ECHO  
8 
ICMP_TIME_EXCEEDED 
11 
ICMP_PARAMETERPROB 12 
ICMP_TIMESTAMP 
13 
ICMP_TIMESTAMPREPLY  
14 
ICMP_INFO_REQUEST 
15 
ICMP_INFO_REPLY 16 
ICMP_ADDRESS 
17 
ICMP_ADDRESSREPLY 18 
 
 
Tab. 7.2 
ICMP Message Type 
 
The following figure shows simple ICMP message construction. 
0                                      7                                  15 16                                                                              31 
8-bit Type 
8-bit Code 
16-bit Checksum 
(Contents Depend on Type and Code) 
 
It is possible to control ICMP message through user’s configuration. You can configure to 
block the echo reply message to the partner who is doing ping test to device and interval 
to transmit ICMP message. 
7.14.1 
Blocking Echo Reply Message 
It is possible to configure block echo reply message to the partner who is doing ping test 
to switch. To block echo reply message, use the following commands. 
Command Mode 
Description 
ip icmp ignore echo all 
Blocks echo reply message to all partners who are 
taking ping test to device. 
ip icmp ignore echo broadcast 
Global 
Blocks echo reply message to partner who is taking 
broadcast ping test to device. 
 
To release the blocked echo reply message, use the following commands. 
Command Mode 
Description 
no ip icmp ignore echo all 
Releases blocked echo reply message to all partners 
who are taking ping test to device. 
no ip icmp ignore echo broad-
cast 
Global 
Releases blocked echo reply message to partner who 
is taking broadcast ping test to device. 
 
7.14.2 
Interval for Transmit ICMP Message 
User can configure the interval for transmit ICMP message. After you configure the inter-
val, ICMP message will be blocked until the period based on the last message is up. For 
example, if you configure the interval as 1 second, ICMP will not be sent within 1 second 
after the last message has been sent.