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Accessing a command line interface (CLI) using telnet or SSH is known as a virtual terminal line (VTY) session. A VTY ACL is used to control what Telnet and SSH users can access on the switch. The following steps provide you with control of the Telnet or SSH connections to the switch by applying ACLs on VTY lines:
- Create IP or IPv6 access lists with permit or deny filters.
- Enter the VTY mode by using the line vty command.
- Apply the access lists to the VTY line with the access-class command.
For example, an ACL may be created and named deny50, and then assigned to the VTY to disallow the IP address 10.1.1.5 any IP traffic into the switch. Since ACLs have an implicit
denystatement as the last rule, you must add apermitstatement to allow all other IP traffic.OS10(config)# ip access-list deny50OS10(config-ipv4-acl)# deny ip 10.1.1.5 255.255.255.255 anyOS10(config-ipv4-acl)# permit ip 10.1.1.0 255.255.255.0 anyOS10(config-ipv4-acl)# exitTo enter the VTY mode, run the line vty command while in configuration mode.
OS10(config)# line vtyOS10(config-line-vty)# ip access-class deny50To view the VTY ACL configuration, run the line vty command while in configuration mode.
OS10(config-line-vty)# show configuration!line vty ip access-class deny50To verify the VTY ACL works, SSH or Telnet into the switch using the 10.1.1.5 IP address. The connection will fail. Changing the IP address to 10.1.1.6 or other address on the subnet will regain connectivity. Use other supported ACLs in the SmartFabric OS10 User Guide to customize the security on your network.
FAQs
What is Dell EMC SmartFabric OS10? ›
Dell SmartFabric OS10 is a transformational software platform that provides networking hardware abstraction through a common set of APIs so you can: Enable consistency across data center compute and network resources. Incorporate compatibility into your existing network operations.
What is OS10 Enterprise? ›The Dell Networking OS10 Enterprise Edition is a Network Operating System supporting multiple architectures and environments.
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What is a benefit of SmartFabric services mode? ›SmartFabric Services for VxRail key benefits. Faster time production time. • Plug-and-play fabric formation for VxRail. • Define the fabric policy in VxRail Manager.
What is Dell PowerVault used for? ›PowerVault is a line of data storage and backup products formerly from Dell, and currently for Dell EMC.
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Should I uninstall Dell Support Assist OS Recovery Plugin? ›If you have a Dell computer, you may be wondering if you can uninstall the Dell SupportAssist OS recovery plugin. This plugin is used by Dell to restore your computer to its original factory settings in the event of a major problem. While you can technically uninstall the plugin, Dell does not recomm…
What is OS10? ›OS X (pronounced O-S ten) is an operating system designed by Apple. The operating system is what allows you to use a computer. OS X comes preloaded on all new Apple Macintosh computers (commonly known as Macs).
What is the difference between Dell and EMC? ›Dell EMC is an American multinational technology company that offers products and services across all areas of computing, networking and storage. The company was formed when Dell Inc. acquired EMC Corporation in September 2016, along with EMC subsidiaries, including VMware, RSA Security and Pivotal.