LANCOM 821 ADSL/ISDN – LANCOM 1621 ADSL/ISDN – LANCOM 1711 VPN Chapter 2: Installation27ENSecurity (onlyLANCOM 1711VPN)SStatus of the firewall. Indicates the status of the security settings and avertedattacks to the protected network.VPN (only LANCOM1621 ADSL/ISDNand LANCOM 1711VPN)Status of a VPN connection. Only active with LANCOM VPN Option installed.2.3.2 The back of the unitThe connections and switches of the router are located on the back panel:LANCOM 821ADSL/ISDN undLANCOM 1621ADSL/ISDN Voltage switch Connection for the included power adapter Reset switchSwitch with four 10/100Base-Tx connections Serial configuration port ISDN/S0 port ADSL portgreen constantly on Security settings ok. Packet filter rules are set.red/greenblinking Insecure configurationred flickering Security alert: data packet filtered by firewall rulesoff No VPN tunnel establishedgreen blinking Negotiating VPN connectiongreen flashing Establishing first connectiongreen inverse flashing Establishing further connectiongreen constantly on VPN connection establishedResetAC 12 VOILAN 3LAN 4 LAN 2 LAN 1 ISDN ADSLConfig (COM)