> In my case, the PPPoE interface got MTU=1480. They might be stacking
> something else on top of it or PPPoE might have optional fields. I
> read somewhere that PPPoE might use either 8 or 20 bytes, but I'm not
> an expert on PPPoE.
For ref, an L2TP + PPPoE stack isn't too uncommon, and gives you
Syzkaller with KCSAN identified a data-race issue when accessing
keypair->receiving_counter.counter.
This patch uses READ_ONCE() and WRITE_ONCE() annotations to fix the
problem.
Fixes: a9e90d9931f3 ("wireguard: noise: separate receive counter from send
counter")
Reported-by: syzbot+d1de830e4ecda
> > I could dynamically add firewall rules to clamp MSS per authorized_ips
> > but, theoretically, the kernel has all the info to do that
> > automatically. I wonder if MSSFIX could detect the best MTU for a
> > specific address through the wireguard. It should consider the
> > peer-to-peer PMTU, t
> Hi,
Hi Daniel,
> On Wed, Aug 23, 2023 at 04:58:40PM +0200, Marek Küthe wrote:
> > PPPoE adds 8 bytes of overhead so that an MTU of 1432 can be used. I
> > also have to do this at home with my DSL line for example.
> > The MTU should be set on each side (on both peers) for this to work.
>
> Oh,
Hi,
On Wed, Aug 23, 2023 at 04:58:40PM +0200, Marek Küthe wrote:
> PPPoE adds 8 bytes of overhead so that an MTU of 1432 can be used. I
> also have to do this at home with my DSL line for example.
> The MTU should be set on each side (on both peers) for this to work.
Oh, I just realized I used th
Hi Luiz,
On Tue, Aug 22, 2023 at 05:39:23PM -0300, Luiz Angelo Daros de Luca wrote:
> We noticed an issue with clients that use PPPoE and connect to WG
> using IPv6. Both sides start to fragment the encrypted packet leading
> to a severe degradation in performance. We reduced the wireguard MTU
> f
On Thu, 17 Aug 2023 20:14:52 +
blurt_overkill...@simplelogin.com wrote:
> I see here[1] that if you're using IPv4 exclusively, you can get away with
> an MTU of 1440. If my client only has IPv4 internet, however the server
> issues an IPv6 address for use by the client, can the client still us
On Tue, 22 Aug 2023 17:39:23 -0300
Luiz Angelo Daros de Luca wrote:
> Hello,
>
> We noticed an issue with clients that use PPPoE and connect to WG
> using IPv6. Both sides start to fragment the encrypted packet leading
> to a severe degradation in performance. We reduced the wireguard MTU
> from
There appears to be a bug that causes the network adapter "Intel(R)
Wi-Fi 6E AX211 160MHz" on Windows 11 (with all current updates) to
disconnect and re-connect to the WiFi network a few times AFTER
disconnecting a WireGuard client profile. If the WireGuardTunnel
service can be either set to automa
I guess it is a normal thing on windows as Cisco VPN Client works the same way.
--
Endre
On August 19, 2023 22:31:33 Diyaa Alkanakre wrote:
Hello everyone,
I am seeing lots of ARP dynamic entries on Windows when typing "arp -a" on
the command line on windows. I am wondering if that is a nor
Hi,
I'm not quite sure if this is a real bug, but I only get to a simplified
GUI on the FireTV instead of the one I'm usually used to from Andoird.
Only when I reinstall the apk and open it right after, I get the usual
GUI with settings options.
┌──
Hello, I hope this is the right place.
I see here[1] that if you're using IPv4 exclusively, you can get away with an
MTU of 1440. If my client only has IPv4 internet, however the server issues an
IPv6 address for use by the client, can the client still use 1440 without
fragmentation, or must th
Hi!
I extensively searched for any discussion on this bug (or at least, I
hope so), which has been bugging me for a while.
I am a Wireguard user on macOS Ventura (version 13.4.1 (c)), and
installed wireguard via the wireguard-tools (version 1.0.20210914) and
wireguard-go (0.0.20230223) comma
Hi!
I extensively searched for any discussion on this bug (or at least, I
hope so), which has been bugging me for a while.
I am a Wireguard user on macOS Ventura (version 13.4.1 (c)), and
installed wireguard via the wireguard-tools (version 1.0.20210914) and
wireguard-go (0.0.20230223) comma
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