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Title: Does OPNsense reject or silently drop 113 by default?
Post by: eponymous on August 12, 2022, 09:34:08 PM

Hi,

Running an NMAP scan on an OPNsense firewall which has no inbound connections allowed by default.

I'm seeing port 113 with state "closed" reason: "reset ttl 59". I would've expected to see it marked as "filtered".

Could this just be an intermediary or ISP trying to be clever and returning a reset instead?

Thanks.

Title: Re: Does OPNsense reject or silently drop 113 by default?
Post by: hescominsoon on August 12, 2022, 11:36:54 PM

no..it's probably your isp...

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Archive => 22.7 Legacy Series => Topic started by: eponymous on August 12, 2022, 09:34:08 PM