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Why is this ping not being blocked?
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Topic: Why is this ping not being blocked? (Read 637 times)
RobLatour
Full Member
Posts: 132
Karma: 7
Why is this ping not being blocked?
«
on:
July 20, 2024, 06:50:54 am »
I've been working on this for hours, can you please help me figure out what am I missing?
Why is this ping not being blocked?
Here are screen shots of my ping and the rules.
https://ibb.co/P6PGcxS
https://ibb.co/qgyJcLK
I also tried disabling all the floating rules, but they had no impact on my test results.
Should the ping not be returning that it can't reach the destination?
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newsense
Hero Member
Posts: 1037
Karma: 77
Re: Why is this ping not being blocked?
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Reply #1 on:
July 20, 2024, 08:45:17 am »
There's no firewall for traffic on the same lan - unless you have one configured on each host.
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RobLatour
Full Member
Posts: 132
Karma: 7
Re: Why is this ping not being blocked?
«
Reply #2 on:
July 20, 2024, 01:54:33 pm »
Well well well, that would certainly explain it. Thank you.
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doktornotor
Hero Member
Posts: 709
Karma: 70
Re: Why is this ping not being blocked?
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Reply #3 on:
July 21, 2024, 11:53:02 am »
Those packets will never even hit the OPNsense firewall, your switch handles packets sent between computers on the same LAN.
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RobLatour
Full Member
Posts: 132
Karma: 7
Re: Why is this ping not being blocked?
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Reply #4 on:
July 21, 2024, 02:03:11 pm »
Thanks for your observation, it really helped further solidify for me the reason that rules aren't evaluated between devices working under the same interface umbrella.
I was trying to 'protect' a particular device with an additional level of restrictions around it - that it to say allow some devices on my network interface to have access to it and others not. In the end I just moved it to its own separate interface and from there I have been able to allow and restrict the accesses I wanted quite easily.
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Why is this ping not being blocked?