Outbound IP Blocking Ranges on Netgear Nighthawk R8500

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RedResurrection
DD-WRT Novice


Joined: 10 Jan 2022
Posts: 1

PostPosted: Mon Jan 10, 2022 6:45    Post subject: Outbound IP Blocking Ranges on Netgear Nighthawk R8500 Reply with quote
Hello, been searching all over google and this forum and have developed quite the headache while doing so. Hopefully I am posting this in the right section. I'm no tech guru, but this seems like the right place as far as I can tell.

Basically, I am trying to use my router to enable certain IP blocking ranges to replace what windows firewall can do. I've attached a picture of the IP blocking ranges I'm trying to use. Not sure if this is even possible. The reason I want to do this is that I'm using numerous virtual machines and the task that I use them for requires different IP blocking ranges at various times. Having to go in and change the IP blocks on every virtual machine is a nightmare, and I would love if I could just block all the IPs with my router in one go. If any of you could assist me with this I would greatly appreciate it. Thanks in advance!

Router Model: Netgear Nighthawk R8500
Firmware: DD-WRT v3.0-r44715 std (11/03/20)
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kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 14129
Location: Texas, USA

PostPosted: Mon Jan 10, 2022 12:45    Post subject: Reply with quote
First suggestion is to consider getting past the router database and upgrading to today's release:

https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2022/01-10-2022-r48075/netgear-r8500/

You should be able to block these via iptables:

https://forum.dd-wrt.com/wiki/index.php/Iptables

https://ipset.netfilter.org/iptables.man.html

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