From: Chengbo Zhao <cbzhao.cn@gmail.com>
To: wireguard@lists.zx2c4.com
Subject: Upload speed slow in Windows through ipv6
Date: Sun, 13 Aug 2023 21:36:18 +0800 [thread overview]
Message-ID: <CAMFsdgwjDzvLtJS5R_t1CMeP2zQkmMMRUCHtXro-vwJxDF_O_Q@mail.gmail.com> (raw)
Hello:
I just changed my way back home from OpenVPN to WireGuard. Nice work,
faster and easier to configure!
But when I tried to connect through ipv6, I had some troubles: the
download speed seems normal, but upload speed (Both to LAN and WAN)
was limited to ~10Mbps (about 10~20% of full speed).
I thought it was a network issue at first, so I used a process of
elimination to find out what went wrong. On the mobile phone, using
the same configuration, both upload and download can reach the upload
rate of my broadband ~60Mbps. This indicates that the computer may not
be working properly. So, I went on to test on my laptop and found that
when using ipv4 for connection, the upload and download can also run
at full speed. I guess that there may be a performance problem with
the forwarding of ipv6 packets in WireGuard NT. By the way, I just
configure ipv4 for all clients in WireGuard's internal network.
Test Device ipv4-download ipv4-upload ipv6-download ipv6-upload
--------------- --------------- ------------- --------------- -------------
PC-Win11 ~60Mbps ~60Mbps ~60Mbps ~10Mbps
Phone-Android ~60Mbps ~60Mbps ~60Mbps ~60Mbps
Can you guys do further tests to resolve this issue?
---
Thanks,
Chengbo Zhao
reply other threads:[~2023-12-20 5:25 UTC|newest]
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