Siemens S323 Blocking Echo Reply Message, Interval for Transmit Icmp Message, Tab, Type Value

UMN:CLI					User Manual
				SURPASS hiD 6615 S223/S323 R1.5
		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.

7.14.1Blocking 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.
	Global
ip icmp ignore echo broadcast		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.
	Global
no ip icmp ignore echo broad-		Releases blocked echo reply message to partner who
cast		is taking broadcast ping test to device.

7.14.2Interval 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.

170 A50010-Y3-C150-2-7619