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1 blocking echo reply message, 2 interval for transmit icmp message, Blocking echo reply message – Siemens S223 User Manual

Page 170: Interval for transmit icmp message, Tab. 7.2, Icmp message type

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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.

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