Hi, A number of users use the Cisco Vpn client to connect to their Cisco Vpn gateway in order to have the access to their company and there is a firewall in between. Could you please help me in identifying the network requirements (used ports/protocols) of the Cisco Vpn solution in order to set up the firewall rules and grant the access? I know that the question is quite general, but do you know a possible article that could explain the protocols used by the Cisco Vpn connectivity? Thank you in advance! Best regards! Diego.