Administrator Guide
Hostbased Authentication : disabled.
RSA Authentication : disabled.
Challenge Response Auth : enabled.
Vty Encryption HMAC Remote IP
2 aes128-cbc hmac-md5 10.16.127.141
4 aes128-cbc hmac-md5 10.16.127.141
* 5 aes128-cbc hmac-md5 10.16.127.141
Dell#
SMS-OTP Mechanism
A short message service one time password (SMS-OTP) is a free RADIUS module to implement two factor authentication. There are
multiple 2FA mechanisms that can be deployed with the RADIUS. Mechanisms such as the Google authenticator do not rely on the
Access-Challenge message and the SMS-OTP module rely on the Access-challenge message. The main objective of this feature is to
handle the Access-Challenge messages and sends the Access-Request message with user’s response.
This module requires NAS for handling the access challenge from the RADIUS server. NAS sends the input OTP in an Access-Request to
the RADIUS server, and the user authentication succeeds or fails depending upon the Access-Accept or Access-Reject response received
at NAS from the RADIUS server.
Conguring the System to Drop Certain ICMP Reply
Messages
You can congure the Dell Networking OS to drop ICMP reply messages. When you congure 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.
• Drop the ICMP or ICMPv6 message type.
drop {icmp | icmp6}
CONFIGURATION mode.
You can congure the Dell Networking OS to suppress the following ICMPv4 and ICMP6 message types:
Table 84. Suppressed ICMP 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)
Security 833