Disabling ICMP messages

Hewlett Packard Enterprise devices are enabled to reply to ICMP echo messages and send ICMP Destination Unreachable messages by default.

You can selectively disable the following types of Internet Control Message Protocol (ICMP) messages:

Echo messages (ping messages)

The routing switch replies to IP pings from other IP devices.

Destination unreachable messages

If the routing switch receives an IP packet that it cannot deliver to its destination, the routing switch discards the packet and sends a message back to the device that sent the packet to the routing switch. The message informs the device that the destination cannot be reached by the routing switch.

Address mask replies

You can enable or disable ICMP address mask replies.