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Posts: 52
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Firewall message

Tue Dec 22, 2020 7:57 am

I have multiple messagess in my router log with same conntent.
Can someone explain it?
Time: Dec/22/2020 07:51:32
Buffer: memory
Topics: firewall
Message: dstnat: in:sfp1 out:(unknown 0), src-mac 00:23:3e:5e:7f:9a, proto TCP (SYN),>my external ip:57816, len 52

Is that some kind of attack?
Thank You
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Posts: 6517
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Re: Firewall message

Tue Dec 22, 2020 9:35 pm

Some of your firewall NAT rules has enabled logging, so you see this message when matching connection comes in. Find which one, check what if does, if you need it, etc.
Excessive quoting is useless and annoying. If you use it, please consider if you could do without it.

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