![]() The NGFW will sit in-between and it’s crucial that we put the Edge Router and the NGFW behind their own switch to separate L2. PfSense will be used as an edge router configured with a default gateway of 192.168.10.1/24 with internet access and an endpoint at 192.168.10.234/24. A firewall/Router acting as an edge router with internet access.Knowledge of how to use vSwitches (ESXI) or dSwitches (vCenter).ESXI host or vCenter for vSwitches/dSwitches.This picture below does an excellent job of illustrating the virtual wire, Eth 1/4 & Eth 1/7 are used on the Palo Alto Firewall which is located in-between the endpoint and the existing router. The routers have no awareness of this happening, thus the terminology “transparent” falls into place. It works by binding two ports between a firewall/router and another firewall/router/switch (which be a switch), it creates some sort of a wire or rather a virtual wire within the firewall itself. A virtual wire interface makes it very easy to deploy Palo Alto’s NGFW in an existing network because it doesn’t require you to change any of your IP-addresses or redesigning the entire network – and on top of that we benefit from all the security solutions that Palo Alto provides.
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