I've noticed that on our network upload on public IP is constantly high and up to the max. Bu using Torch I've noticed that all IPs with high Tx rate originate in China. By checking I don't think that this traffic comes from our LAN network. There are couple of VPN tunnels on the router also. Do you have any idea how to see where does this traffic comes from (and block) or how to even manually block Chinese IPs. Thanks.