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From: Jordan Glover <Golden_Miller83@protonmail.ch>
To: Vasili Pupkin <diggest@gmail.com>
Cc: "William J. Tolley" <william@breakpointingbad.com>,
	WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: Regarding "Inferring and hijacking VPN-tunneled TCP connections"
Date: Fri, 06 Dec 2019 16:12:19 +0000
Message-ID: <sZXjoRuWmvBHjZtlb28qeohg4R8BAHjCk5b-I2TWb5-ew1OZJBGYefxuSzTjFP7e5lESacVJMtp4fKIl7wyXJCI1iIznqnStW6OxG-P9YeQ=@protonmail.ch> (raw)
In-Reply-To: <1bcf459c-4c08-33b2-19da-31cb62fd56a1@gmail.com>

On Friday, December 6, 2019 4:03 PM, Vasili Pupkin <diggest@gmail.com> wrote:

> On 06.12.2019 18:08, Jason A. Donenfeld wrote:
>
> > On Fri, Dec 6, 2019 at 4:06 PM Jordan Glover
> > Golden_Miller83@protonmail.ch wrote:
> >
> > > On Thursday, December 5, 2019 8:24 PM, Jason A. Donenfeld Jason@zx2c4.com wrote:
> > >
> > > > If we can make nft coexistance work reliably, perhaps we can run the
> > > > nft rule on systems where the nft binary simply exists.
> > >
> > > Will this work correctly on systems where nft binary exist but only
> > > iptables rules are used?
> > > That's what I meant by, "if we can make nft coexistance work reliably."
>
> Take a look at the table on the bottom of this page
> https://wiki.nftables.org/wiki-nftables/index.php/Troubleshooting#Question_4._How_do_nftables_and_iptables_interact_when_used_on_the_same_system.3F
>
> On my system their rules coexist fine. Both nftables and iptables are
> just high level interfaces to kernel netfilter hooks after all, if
> either of them drop the packet then the packet is dropped. It is also
> possible to write the same filter using iptables, not as easy and not as
> beautiful as nft though. Finally wireguard can do this directly
> interacting with netfilter as the last resort.

But nft rule won't be visible from iptables tools like iptables-save,
right? This may be confusing for people who still use iptables for
setting up firewall on their systems.

Jordan
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Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-05 19:13 Jason A. Donenfeld
2019-12-05 19:50 ` Vasili Pupkin
2019-12-05 20:24   ` Jason A. Donenfeld
2019-12-05 21:28     ` Vasili Pupkin
2019-12-06 15:18       ` Jason A. Donenfeld
2019-12-06 17:21         ` Vasili Pupkin
2019-12-07 20:51         ` Lonnie Abelbeck
2019-12-06 12:58     ` William J. Tolley
2019-12-06 15:06     ` Jordan Glover
2019-12-06 15:08       ` Jason A. Donenfeld
2019-12-06 16:03         ` Vasili Pupkin
2019-12-06 16:12           ` Jordan Glover [this message]
2019-12-06 17:06             ` Vasili Pupkin
2019-12-05 20:10 ` zrm

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