Administrator Guide

Table 102. Suppressed ICMP message types (continued)
ICMPv4 message types
Address mask request (17)
Address mask reply (18)
NOTE: The Dell EMC Networking OS does not suppress the ICMP message type echo request (8).
Table 103. Suppressed ICMPv6 message types
ICMPv6 message types
Destination unreachable (1)
Time exceeded (3)
IPv6 header bad (4)
Echo reply (129)
Who are you request (139)
Who are you reply (140)
Mtrace response (200)
Mtrace messages (201)
NOTE: The Dell EMC Networking OS does not suppress the following ICMPv6 message types:
● Packet too big (2)
● Echo request (128)
● Multicast listener query (130)
● Multicast listener report (131)
● Multicast listener done (132)
● Router solicitation (133)
● Router advertisement (134)
● Neighbor solicitation (135)
● Neighbor advertisement (136)
● Redirect (137)
● Router renumbering (138)
● MLD v2 listener report (143)
● Duplicate Address Request (157)
● Duplicate Address Confirmation (158)
Dell EMC Networking OS Security Hardening
The security of a network consists of multiple factors. Apart from access to the device, best practices, and implementing
various security features, security also lies with the integrity of the device. If the software itself is compromised, all of the
aforementioned methods become ineffective.
The Dell EMC Networking OS is enhanced verify whether the OS image and the startup configuration file are altered before
loading. This section explains how to configure OS image and startup configuration verification.
Security
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