The machines we manufacture have several Programmable logic Controllers (PLC's) and other Ethernet devices. For the ease of software updates and the complexity of changing the IP addresses within the devices we keep the same IP addresses for each machine.
What Cisco product could we use to view these machines from a single computer? And some tips in setting it up.
We are not able to change the port numbers of the programming software we use (Allen-Bradleys RSLogix).
I have been able to route from two IP addresses using an ASA5505 with policy rules, saying one IP address would route thru to machine one and another IP address routes thru to machine two. But I don't know how to do it from one IP address.
Each machine does not need to communicate with another.
You need to have two network devices( routers, ASAs and so on). Connect each network device to each PLC, and NAT the address of the PLC to one unigue address. The network devices can communicate to each other, but not on the interfaces that are connected to the PLCs.
From the PC you will connect to the PLCs using the NAT addresses.
You can do this with only one ASA if you configure it in multimode (virtual firewalls on the same device) and assign each PLC to a different virtual firewall within the ASA.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...