On 2021-10-01, at 21:39:56 +0200, kaskada@email.cz wrote:
> On 2021-09-16, at 20:08:05 +0100, Jeremy Sowden wrote:
> > On 2021-09-16, at 14:25:00 +0200, kaskada@email.cz wrote:
> > > How can I check where iptables/ip6tables searches for
> > > plugins/modules please?
> > >
> > > Actually the problem is not with iptables but with ip6tables. I
> > > can use IPP2P module on the same Debian with no problems with
> > > iptables, but ip6tables give this error (still the same):
> > >
> > > ip6tables -t mangle -A PREROUTING -m ipp2p --dc -j ACCEPT
> > > ip6tables v1.8.4 (legacy): Couldn't load match `ipp2p':No such
> > > file or directory
> > >
> > > Try `ip6tables -h' or 'ip6tables --help' for more information.
> > >
> > > BTW I`m using legacy (not nf_tables) iptables and ip6tables
> > > (changed with update-alternatives --config iptables,
> > > update-alternatives --config ip6tables).
> >
> > [...]
>
> now I most likely found out where the problem was. Sometimes in the
> past I probably installed theese 2 packages with apt:
>
> xtables-addons-common
> xtables-addons-source
>
> Until I removed them, I was not able to install/use xtables for IPv6
> from source. But now, it seems it works. Thank you so much for your
> patience.

Happy to help.

J.