New and Changed Information

This chapter includes the new and changed features for the Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 10.6(x).

New and Changed Information

Table 1. New and Changed Features

Feature

Description

Changed in Release

Where Documented

MACsec ND ISSU

Two new commands are introduced at the MACsec policy level to support MACsec ND ISSU on Cisco Nexus 9300-GX2, H2R and H1 switches.

10.6(2)F

Guidelines and Limitations for MACsec

Configuring a MACsec Policy

Verifying the MACsec Configuration

AAA, RADIUS, TACACS+, and SSH protocol

Cisco N9324C-SE1U and N9348Y2C6D-SE1U Smart switches support AAA, RADIUS, TACACS+, and SSH protocol features.

10.6(2)F

Guidelines and limitations for AAA on Cisco N9300 Smart switches

Guidelines and limitations for RADIUS on Cisco N9300 Smart switches

Guidelines and limitations for TACACS+ on Cisco N9300 Smart switches

Guidelines and limitations for SSH protocol on Cisco N9300 Smart switches

MACsec support on Cisco N9300 Smart switch

Added MACsec support on Cisco N9300 Smart switches.

10.6(2)F

Guidelines and limitations for MACsec on Cisco N9300 Smart switches

Custom CoPP support on Cisco N9300 Smart switch

Added Custom CoPP support on Cisco N9300 Smart switches.

10.6(2)F

Guidelines and limitations for CoPP on Cisco N9300 Smart switches

ACL support on Cisco N9300 Smart switch

Cisco N9300 Smart switches support these ACL features:

  • PACL

  • RACL on L3 interfaces, L3 Port-channel interfaces, subinterfaces, and SVI interfaces

  • PBR ACL

10.6(2)F

ACL guidelines and limitations for Cisco N9300 Smart switches

DHCP relay support on Cisco N9300 Smart switch

Added DHCP relay support on Cisco N9300 Smart switches.

10.6(2)F

Guidelines and limitations for DHCP relay on Cisco N9300 Smart switches

Cisco Live Protect supported on Smart switches

Added support for Cisco Live Protect on Cisco N9324C-SE1U and N9348Y2C6D-SE1U Smart switches

10.6(2)F

Cisco Live Protect

Enforce Mode support for Cisco Live Protect

Added support for enforce mode as part of the Cisco Live Protect feature

10.6(2)F

Cisco Live Protect

Guidelines and limitations for Cisco Live Protect

Add or remove Cisco Live Protect policy packages

Verify policy status for Cisco Live Protect

Modify the policy mode

Routing TACACS+ (AAA) Traffic via Linux Kernel Network Stack

Beginning with Cisco NX-OS Release 10.6(2)F, Cisco Nexus 9000 Series switches support routing TACACS+ (AAA) traffic via the Linux kernel network stack (kstack) in addition to the existing netstack path.

10.6(2)F

Guidelines and Limitations for TACACS+

DHCP Relay to Server in Local Guest Shell/Docker

Beginning with Cisco NX-OS Release 10.6(2), Cisco Nexus 9000 switches support relaying DHCP requests to a server running locally within the switch, either in the Guest Shell or as a Docker container. This capability allows the switch to forward DHCP client requests received on its interfaces to a locally hosted DHCP server, enabling centralized and flexible IP address assignment within the network environment.

10.6(2)F

DHCP Relay to Server in Local Guest Shell/Docker

How DHCP Relay to Local Guest Shell/Docker Works

Guidelines and Limitations

Configuring DHCP Relay to Local Guest Shell/Docker

Verifying DHCP Relay to Local Guest Shell/Docker

Displaying Cisco SUDI Certificate Chain

Beginning with Cisco NX-OS Release 10.6(2), Cisco Nexus 9000 switches support displaying and signing the Cisco Secure Unique Device Identifier (SUDI) certificate chain as part of Cisco’s trustworthy technologies, which leverage Secure Unique Device Identifier (SUDI) and Trust Anchor Module (TAm). This capability allows the switch to display the SUDI certificate chain and generate a signature based on a user-provided nonce, supporting integration with external systems.

10.6(2)F

Displaying Cisco SUDI Certificate Chain

How SUDI Certificate Chain Display and Signing Works

Guidelines and Limitations

Verifying SUDI Certificate

Cisco Discovery Protocol (CDP) enhancement for second port disconnect

Added CDP enhancement for second Port disconnect which allows a Cisco IP phone to send a CDP message to a switch when a host is unplugged from behind the phone.

10.6(2)F

Functionalities of 802.1X for Voice VLAN

802.1X Guidelines and Limitations for Voice VLAN

MAC move support for data clients on MDA ports

Added support to handle MAC move events for data clients connected to Multi-Domain Authentication (MDA) ports.

10.6(2)F

Functionalities of 802.1X for Voice VLAN

Support for 1R2C on Cisco N9300 Series smart switches

Added 1R2C support for traffic storm control on Cisco N9300 Series smart switches.

10.6(2)F

Guidelines and Limitations for Traffic Storm Control

Configure traffic storm control for one-level threshold on N9300 Series smart switches

RACL on SVI

Added RACL support on SVI interfaces of Cisco Nexus 9364E-SG2 Series switches.

10.6(2)F

Guidelines and Limitations for IP ACLs

Securing NX-OS with Cisco Live Protect

This feature protects the Nexus switches in monitoring mode, and is implemented using the NXSecure configuration.

10.6(1)F

Secure NX-OS with Cisco Live Protect

MACsec support on Cisco Nexus 9336C-SE1 switch

Added MACsec support on Cisco Nexus 9336C-SE1 switches.

10.6(1)F

Guidelines and limitations for MACsec on Cisco Nexus 9336C-SE1 switches

Custom CoPP support on Cisco Nexus 9336C-SE1 switch

Added Custom CoPP support on Cisco Nexus 9336C-SE1 switches.

10.6(1)F

Guidelines and limitations for CoPP on Cisco Nexus 9336C-SE1 switches

ACL support on Cisco Nexus 9336C-SE1 switch

Cisco Nexus 9336C-SE1 switches support these ACL features:

  • PACL

  • RACL on L3 interfaces, L3 Port-channel interfaces, subinterfaces, and SVI interfaces

  • PBR ACL

10.6(1)F

Guidelines and Limitations for IP ACLs

TACACS+ over TLS

Added support to configure TACACS+ over TLS

10.6(1)F

Guidelines and Limitations for TACACS+

Configuring TACACS+ Over TLS

Verifying TACACS+ Over TLS Configuration

Host Identity Based Authorization (HIBA)

Added support for centralized SSH authorization management by embedding host authorization information within certificates.

10.6(1)F

SSH Authentication Using Host Identity Based Authorization (HIBA)

Configuring HIBA for SSH Authentication

Deprecate redundant SSH configuration and DSA CLIs

Added support to deprecate redundant SSH configuration and DSA CLIs

10.6(1)F

Guidelines and Limitations for SSH and Telnet

Generating SSH Server Keys

Configuring SSH Passwordless File Copy