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Layer 2 NAT offerings with Stratix Switches
Genius Webinar David Englund Dan Lahr Technical Support Engineer February 25, 2016
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Agenda Introduction Products that support NAT
How NAT works with Stratix Switches NAT Demo Questions
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Introduction Presenters David Englund Daniel Lahr Goal of Presentation
Technical Support Engineer Daniel Lahr Goal of Presentation Identify what Rockwell products support NAT Explain use cases for NAT Provide example of NAT configuration in Stratix switches
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Agenda Introduction How NAT works with Stratix Switches
Products that support NAT NAT Demo Questions
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How NAT works with Stratix Switches
What is Network Address Translation (NAT) and how is it used? NAT was originally developed because the address space of IPv4 was not large enough to accommodate every device on the internet. Private IP addresses are used on Private networks and a many-to- one translation gives them a single, public IP on the Internet In automation NAT translations are one-to-one not many-to-one. In automation, one-to-one NAT allows multiple machines with identical IP schemes to coexist on the same network. NAT can also be used as a way to only allow access to certain devices on a machine but not others.
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How NAT is used Multiple Machines with Identical IP Addressing
1:1 NAT Translation Inside Outside 1:1 NAT Translation Inside Outside Machine PLC IP Address IP Gateway
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How NAT is used Access Only One Device on a Machine
Stratix 5700 w/ NAT Machine IP Addresses CompactLogix PowerFlex PanelView Inside to Outside Inside Outside Outside to Inside
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How NAT works with Stratix Switches
What is Layer 2 NAT ? Layer 2 is the data link layer. This is where switching occurs This process only switches, it will not route to other subnets Switching takes place in hardware while routing takes place in software Layer 2 NAT is NAT that takes place through switching instead of routing Faster than layer 3 NAT Requires translations in both directions because it does not route
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How NAT works with Stratix Switches
What is Layer 3 NAT ? Layer 3 is the network layer. This is where routing is utilized to communicate between subnets Gateway address required for layer 3 Layer 3 NAT is NAT that takes place through a router. Translations are only required in one direction. Routing takes care of communications in the other direction Easier to configure than layer 2 NAT
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How NAT Works – Layer 2 NAT Architecture
Outside Subnet /24 VLAN 10 Inside Subnet /24 VLAN 10 Stratix 5700/8000 Layer 2 Outside Device IP Src IP Dst IP Inside Device IP Stratix 5700 w/NAT Inside to Outside Inside Outside Src IP Dst IP Src IP Dst IP Src IP Dst IP Outside to Inside Outside Inside
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How NAT Works – Layer 2 NAT With Layer 3 Uplink
Stratix 8300 VLAN 10 VLAN 20 Outside Subnet /24 VLAN 20 Inside Subnet /24 VLAN 10 Stratix 8300 Layer 3 Outside Device IP GW Src IP Dst IP Inside Device IP GW Stratix 5700 w/NAT Src IP Dst IP Src IP Dst IP Src IP Dst IP Inside to Outside Inside Outside Gateway Translation
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How NAT Works – Layer 3 NAT architecture
Outside Subnet /24 Inside Subnet /24 Stratix 5700/8000 Layer 2 Outside Device IP Src IP Dst IP Inside Device IP GW 9300-ENA Src IP Dst IP Src IP Dst IP Src IP Dst IP 1:1 NAT Translation Inside Outside
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Agenda Introduction How NAT works with Stratix Switches
Products that support NAT NAT Demo Questions
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Products that support NAT
What type of NAT offerings does Rockwell Automation supply? Layer 3 NAT Devices 9300-ENA 1783-NATR Stratix 5900 Layer 2 NAT Devices Stratix 5700 Stratix 5400 Stratix 5410
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Products that support NAT
9300-ENA Supports 1:1 layer 3 NAT for up to 128 devices. Supports network discovery and DHCP IP address assignment of devices Supports VPN for secure, remote connection to network. 1783-NATR Supports 1:1 layer 3 NAT for up to 32 translations. DLR or linear network support
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Products that support NAT
Stratix 5900 Supports 1:1 layer 3 NAT as well as Port Address Translation (PAT) for internet connection. Security router with firewall and site-to-site VPN connection. Includes 1 gigabit WAN port and four fast Ethernet switch ports.
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Products that support NAT
Stratix 5700 Compact layer 2 managed switch with Layer 2 NAT option NAT, DLR, POE and PTP support available on some models. NAT is supported with models 1783-BMS10CGN,1783-BMS12T4ECGNK and 1783-BMS20CGN
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Products that support NAT
Stratix 5400 Layer 2 or layer 3 switch available with all Gigabit ports NAT and PTP available on all models. Some models include PoE Stratix 5410 Layer 2 or layer 3 rack mount distribution switch with 24 Gigabit downlink ports and four 10-Gigabit uplink ports Up to 8 selectable NAT boundaries with capability to route after translation
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Agenda Introduction Products that support NAT
How NAT works with Stratix Switches NAT Demo Questions
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Layer 2 NAT Demo
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Layer 2 NAT Demo
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Layer 2 NAT Demo
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Layer 2 NAT Demo
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Layer 2 NAT Demo
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Layer 2 NAT Demo
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Layer 2 NAT Demo w/ Router
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Layer 2 NAT Demo w/ Router
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Layer 2 NAT Demo w/ Router
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Layer 2 NAT Demo w/ Router
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Layer 3 NAT Demo (9300-ENA)
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Agenda Introduction Products that support NAT
How NAT works with Stratix Switches NAT Demo Questions
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Helpful Documents Literature Library - library/overview.page 1783-td001 - Stratix Ethernet Device Specifications iasimp-qs038 - Stratix 5700 Network Address Translation Quick Start 1783-um007 – Stratix Managed Switches User Manual Knowledgebase - – Rockwell Device Capable of Network Address Translation – Simple Stratix 5700 NAT Setup – How to configure the Stratix 5700 with NAT to handle multiple identical machines – 9300-ENA Introduction
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Questions?
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