NicoInve
L2TP/IPsec era quella più prestazionale in termini di banda.
Ho aperto un pò di porte con ufw ma niente
Chain ufw-user-output (1 references)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere tcp dpt:4662
ACCEPT udp -- anywhere anywhere udp dpt:4672
ACCEPT tcp -- anywhere anywhere tcp dpt:1701
ACCEPT udp -- anywhere anywhere udp dpt:l2f
ACCEPT udp -- anywhere anywhere udp dpt:isakmp
ACCEPT udp -- anywhere anywhere udp dpt:ipsec-nat-t