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Multiple Protection Policies Necessary? (Top to Bottom Rules)

CMC

I'm trying to better understand the Sophos Top to Bottom philosophy.

I currently have three separate wireless networks. With the exception of QOS, each have similar policies (Scan HTTP, Block Google, Scan FTP, Lan to Wan Default Intrusion Prevention, Application Control (Custom), Traffic Shaping Policy (Custom).

All has been working well. I have a number of hard wired devices on the LAN. They all route through "default network policy" or the "Lan to Wan." This, like the wireless networks, has it's own firewall rules (Intrusion Prevent, Application Control, etc etc).

My question is, since the Wireless Networks, at some point, have to travel through the lan > wan. Are these settings redundant? In other words, is the firewall working double time/scanning twice when really all of the protection setting should just be applied within the Default Network Policy /  Lan to WAN firewall rule instead? 

 



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  • 0

    Hi,

    Please post a copy of your firewall rules so we can meter assist you.

    Are you seeing traffic being reported against each firewall rule?

    Also you might like to build your own IPS policy rather than use the general template.

    Ian

  • 0 in reply to rfcat_vk

    Yes there is traffic, there's no issue there. I'm just curious if perhaps the firewall is double scanning traffic/working harder than it needs to. In other words, because the Wireless AP is bonded to the Lan/Wan and all traffic from the WiFi flows through LAN, I'm curious if perhaps I just need to set up Intrusion Protection, AV, etc on only the Lan/Wan rule rather than all of them. 

    Image attached:

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  • 0 in reply to rfcat_vk

    Yes there is traffic, there's no issue there. I'm just curious if perhaps the firewall is double scanning traffic/working harder than it needs to. In other words, because the Wireless AP is bonded to the Lan/Wan and all traffic from the WiFi flows through LAN, I'm curious if perhaps I just need to set up Intrusion Protection, AV, etc on only the Lan/Wan rule rather than all of them. 

    Image attached:

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