Inter-VSYS Traffic That Must Leave the Firewall
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Inter-VSYS Traffic That Must Leave the Firewall

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Inter-VSYS Traffic That Must Leave the Firewall

An ISP that has multiple customers on a firewall (known as multi-tenancy) can use a virtual system for each customer, and thereby give each customer control over its virtual system configuration. The ISP grants
vsysadmin
permission to customers. Each customer’s traffic and management are isolated from the others. Each virtual system must be configured with its own IP address and one or more virtual routers in order to manage traffic and its own connection to the Internet.
If the virtual systems need to communicate with each other, that traffic goes out the firewall to another Layer 3 routing device and back to the firewall, even though the virtual systems exist on the same physical firewall, as shown in the following figure.

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