Network policies is in fact a client firewall, these rules are read from top to bottom until 1 rule is triggered. To apply a network policy you can assign 1 rule or group to a location or billing.

• Browse to Security → network policy
• Fill in a name and choose an action:
  • Accept
  • Limit
    • Limit packets
    • Limit connections
  • Drop
  • Redirect
• Choose a protocol
• Fill in a destination IP/netmask and optionally a destination port and click Save