Can't make sshuttle works with ipv6 on archlinux since 1rst august

Hi,

IPv4 still works (even after updates). Since the 1rst august, I can't make IPv6 work (but it did before on arch linux).
I can make work IPv6 today with the same command on an other distribution.

Here is the command I use (as explain in the documentation for tproxy method for making udp and ipv6 work) :

sudo ip route add local default dev lo table 100
sudo ip rule add fwmark 0x01 lookup 100
sudo ip -6 route add local default dev lo table 100
sudo ip -6 rule add fwmark 0x01 lookup 100

sudo sshuttle --listen 127.0.0.1:0,[::1]:0 --dns --auto-hosts --method=tproxy -t 0x01 -e "ssh -4 -p 22" -r <server> 10.10.10.0/24 ::/0

I runned pytest on my arch with sshuttle code with success but test does not try sending packets.
Have you got any idea on updates (kernel or other) that could impact iptable mangle or python version that sshuttle is using ?

Thanks in advance.
Thomas

Start by reproducing the provided sshuttle command on Arch Linux and compare the kernel, iptables mangle behavior, and Python environment with the working distribution. The existing pytest run does not send packets, so investigate the IPv6 tproxy path and determine what changed since 1 August. Done means IPv6 works with the documented setup or the incompatibility is identified and covered by an appropriate test.