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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!
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I investigated PFSense (My current firewall solution) and RouterOS, but neither had very satisfactory scripting abilities. Linux, on the other hand, had no such problem.
In this solution, I have chosen to place a Linux solution acting only as a router in front of my PFSense box. This kept a fairly nice GUI for day to day management, but provided it with a more robust way to connect to AAISP via a Linux router, all of which is hosted on an ESXi box. The obvious cost is an extra hop, which requires a bit of extra CPU and causes a bit of extra latency. When measured I found PFSense to need around 10x the CPU of the linux box (
Throughout this guide, I'll likely refer to your PFSense box. While a few config tweaks will be needed, the guide should apply to more or less any firewall.
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