I am using 2 Linux systems (ubuntu 12.04) to copy files from one to another. So my "master" server has: { "device_name": "TEST", "listening_port" : 1234, "storage_path" : "/storagepath/.sync", "check_for_updates" : false, "lan_encrypt_data" : true, "use_upnp" : false, "download_limit" : 200, "upload_limit" : 200, "rate_limit_local_peers" : true, "shared_folders" : [ { "secret" : "my secret key", "dir" : "/mydir", "use_relay_server" : false, "use_tracker" : false, "use_dht" : false, "search_lan" : false, "use_sync_trash" : true, "known_hosts" : ["123.123.123.123:1234"] } ]} The remote server has the RO key and connects just fine. Now, I open a windows btsync client on a device in the same Lan, and it just connects skipping all limit rates. The limit bandwidth is the part I worry the most, but it would be ideal if I could also limit the connections to specific IPs. Any help?