Dell S3100 Command Line Reference Guide for the Series 9.110.0 - Page 1529

the role command to modify command permissions. The security administrator and roles inherited by security administrator can only modify permissions for commands they already have access to. • Make sure you select the correct role you want to inherit. NOTE: If you inherit a user role, you cannot modify or delete the inheritance. If you want to change or remove the inheritance, delete the user role and create it again. If the user role is in use, you cannot delete the user role. role mode { { { addrole | deleterole } role-name } | reset } command - Modifies (adds or deletes) command permissions for newly created user roles and system defined roles. Related Commands • role mode { { { addrole | deleterole } role-name } | reset } command - modifies (adds or deletes) command permissions for newly created user roles and system defined roles. ICMP Vulnerabilities The internet control message protocol (ICMP) is a network-layer internet protocol that provides message packets to report errors and other information regarding IP packet processing back to the source. Dell Networking OS mainly addresses the following ICMP vulnerabilities: • ICMP Mask Reply • ICMP Timestamp Request • ICMP Replies • IP ID Values Randomness You can configure the Dell Networking OS to drop ICMP reply messages. When you configure the drop icmp command, the system drops the ICMP reply messages from the front end and management interfaces. By default, the Dell Networking OS responds to all the ICMP messages. You can configure the Dell Networking OS to suppress the following ICMPv4 and ICMPv6 message types: Table 4. Suppressed ICMPv4 message types ICMPv4 Message Types Echo reply (0) All sub types of destination unreachable (3) Source quench (4) Redirect (5) Router advertisement (9) Router solicitation (10) Time exceeded (11) IP header bad (12) Timestamp request (13) Timestamp reply (14) Information request (15) Information reply (16) Address mask request (17) Security 1529