34 Chapter 5 User NotesNN47923-3015 Clicking SoundThe Business Secure Router will click once every two minutes until an ADSL lineis connected.Firewall1 Address Range ValidationIn the firewall rules, the router does not confirm when given an address range, thatthe second address is higher than the first. If this type of address range is entered,the range is ignored.2 Automatic Firewall ProgrammingConfigurations to various areas of the router, such as remote management oradding a SUA Server, do not automatically add the appropriate rules to theFirewall, to enable the traffic to pass through the router. These need to be addedseparately.Note: Firewall rules do not apply to IPSec tunnels.NAT1 Deleting NAT Rule Does Not Drop an Existing ConnectionIf a NAT rule is deleted, the router must be rebooted to apply the change toexisting service connections. This is already noted in the GUI.2 NAT Traversal StatusIf NAT Traversal is enabled, but is not needed (because the client is not behind aNAT router), it will be shown as 'inactive' in the VPN Client Monitor. This mayconfuse some users.VPN Client Termination1 Change of User Account Does Not Drop Existing Connections