Use the tproxy method to forward all IPv4 and IPv6 traffic
sshuttle --method=tproxy --remote={{username}}@{{sshserver}} {{0.0.0.0/0}} {{::/0}} --exclude={{your_local_ip_address}} --exclude={{ssh_server_ip_address}}
sshuttle --method=tproxy --remote={{username}}@{{sshserver}} {{0.0.0.0/0}} {{::/0}} --exclude={{your_local_ip_address}} --exclude={{ssh_server_ip_address}}