new to nft

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From: =?UTF-8?Q?Fran=c3=a7ois_Patte?= <[email protected]>
To: [email protected]
Message-ID: <[email protected]>
Subject: new to nft

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Bonjour,

I begin to use nftables and wrote thes rules:
	chain input { # handle 1
		type filter hook input priority 0; policy drop;
		ct state established,related accept # handle 4
		ip saddr 192.168.1.0/24 accept # handle 5
		ip6 saddr fe80::/10 accept # handle 6
		ct state invalid drop # handle 7
		iifname "lo" accept # handle 8
		tcp dport 22222 accept # handle 9
		log # handle 10
	}

I expect to block all traffic from anywhere except on the local network=20
(192.168.1.0/24)

Is "fe80::/10" the ipv6 corresponding syntax for ipv4 192.168.1.0/24?

I expect too accept connections from the internet to port 22222

The last line "log" is (for me) supposed to log all dropped packets, am=20
I right?

For this last line, logwatch reports "logged packets on interface".
logwatch with iptables reports "drop packets on the interface"

Are these packets dropped or only logged?

Thank you for your explanations.

Regards.

--=20
Fran=C3=A7ois Patte
UFR de math=C3=A9matiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Universit=C3=A9 Paris Descartes
45, rue des Saints P=C3=A8res
F-75270 Paris Cedex 06
T=C3=A9l. +33 (0)6 7892 5822
http://www.math-info.univ-paris5.fr/~patte
FSF
https://www.fsf.org/blogs/community/presenting-shoetool-happy-holidays-fr=
om-the-fsf

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