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Re: nftables firewall question: matching udp in ipv6

From Michel Verdier <mv524@free.fr>
Newsgroups linux.debian.user
Subject Re: nftables firewall question: matching udp in ipv6
Date 2024-01-12 19:40 +0100
Message-ID <HVuBI-2Dmc-7@gated-at.bofh.it> (permalink)
References <HVrNw-2BEZ-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2024-01-12, Ralph Aichinger wrote:

> If I insert the following rule at the bottom, everything starts to
> work:
>
> meta l4proto  udp  accept

Add log to see what would be dropped:

  meta l4proto udp log level info prefix "udp" accept

Provide "nft list ruleset" to better see what nft understands.

I suppose your udp is not "established" to not be accepted. Perhaps
something in your nat that breaks "established" ?

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Thread

nftables firewall question: matching udp in ipv6 Ralph Aichinger <ra@h5.or.at> - 2024-01-12 16:40 +0100
  Re: nftables firewall question: matching udp in ipv6 Tom Furie <tom@furie.org.uk> - 2024-01-12 17:00 +0100
    Re: nftables firewall question: matching udp in ipv6 Ralph Aichinger <ra@h5.or.at> - 2024-01-12 17:30 +0100
    Re: nftables firewall question: matching udp in ipv6 Ralph Aichinger <ra@h5.or.at> - 2024-01-12 17:40 +0100
  Re: nftables firewall question: matching udp in ipv6 Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-12 18:30 +0100
    Re: nftables firewall question: matching udp in ipv6 Ralph Aichinger <ra@h5.or.at> - 2024-01-12 19:10 +0100
  Re: nftables firewall question: matching udp in ipv6 Michel Verdier <mv524@free.fr> - 2024-01-12 19:40 +0100
    Re: nftables firewall question: matching udp in ipv6 Ralph Aichinger <ra@h5.or.at> - 2024-01-12 21:20 +0100
      Re: nftables firewall question: matching udp in ipv6 Michel Verdier <mv524@free.fr> - 2024-01-12 22:10 +0100

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