diff --git a/conf/post_decalrations.conf b/conf/post_decalrations.conf
index 4cc0116..210478c 100644
--- a/conf/post_decalrations.conf
+++ b/conf/post_decalrations.conf
@@ -9,7 +9,7 @@
 # ---
 # - Standard mail user prts
 # ---
-declare -a standard_mailuser_port_arr
+declare -a standard_mailuser_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $standard_mailuser_ports ; do
    standard_mailuser_port_arr+=("${_port}")
@@ -20,22 +20,22 @@ IFS="$CUR_IFS"
 # - Masquerade TCP Connections
 # ---
 
-declare -a nat_network_arr
+declare -a nat_network_arr=()
 for _net in $nat_networks ; do
    nat_network_arr+=("$_net")
 done
 
-declare -a masquerade_tcp_con_arr
+declare -a masquerade_tcp_con_arr=()
 for _str in $masquerade_tcp_cons ; do
    masquerade_tcp_con_arr+=("$_str")
 done
 
-declare -a masquerade_udp_con_arr
+declare -a masquerade_udp_con_arr=()
 for _str in $masquerade_udp_cons ; do
    masquerade_udp_con_arr+=("$_str")
 done
 
-declare -a masquerade_icmp_con_arr
+declare -a masquerade_icmp_con_arr=()
 for _str in $masquerade_icmp_cons ; do
    masquerade_icmp_con_arr+=("$_str")
 done
@@ -44,9 +44,9 @@ done
 # ---
 # - Extern Network interfaces (DSL, Staic Lines, All together)
 # ---
-declare -a nat_device_arr
-declare -a dsl_device_arr
-declare -a ext_if_arr
+declare -a nat_device_arr=()
+declare -a dsl_device_arr=()
+declare -a ext_if_arr=()
 for _dev in $ext_ifs_dsl ; do
    dsl_device_arr+=("$_dev")
    ext_if_arr+=("$_dev")
@@ -64,7 +64,7 @@ done
 # ---
 # - VPN Interfaces
 # ---
-declare -a vpn_if_arr
+declare -a vpn_if_arr=()
 for _dev in $vpn_ifs ; do
    vpn_if_arr+=("$_dev")
 done
@@ -72,7 +72,7 @@ done
 # ---
 # - WireGuard Interfaces
 # ---
-declare -a wg_if_arr
+declare -a wg_if_arr=()
 for _dev in $wg_ifs ; do
    wg_if_arr+=("$_dev")
 done
@@ -80,7 +80,7 @@ done
 # ---
 # - Local Network Interfaces
 # ---
-declare -a local_if_arr
+declare -a local_if_arr=()
 for _dev in $local_ifs ; do
    local_if_arr+=("$_dev")
 done
@@ -88,7 +88,7 @@ done
 # ---
 # - Network Interfaces completly blocked
 # ---
-declare -a blocked_if_arr
+declare -a blocked_if_arr=()
 for _dev in $blocked_ifs ; do
    blocked_if_arr+=("$_dev")
 done
@@ -96,7 +96,7 @@ done
 # ---
 # - Network Interfaces not firewalled
 # ---
-declare -a unprotected_if_arr
+declare -a unprotected_if_arr=()
 for _dev in $unprotected_ifs ; do
    unprotected_if_arr+=("$_dev")
 done
@@ -104,12 +104,12 @@ done
 # ---
 # - Allow these local networks any access to the internet
 # ---
-declare -a any_access_to_inet_network_arr
+declare -a any_access_to_inet_network_arr=()
 for _net in $any_access_to_inet_networks ; do
    any_access_to_inet_network_arr+=("$_net")
 done
 
-declare -a any_access_from_inet_network_arr
+declare -a any_access_from_inet_network_arr=()
 for _net in $any_access_from_inet_networks ; do
    any_access_from_inet_network_arr+=("$_net")
 done
@@ -117,7 +117,7 @@ done
 # ---
 # - Allow local services from ALL extern netwoks
 # ---
-declare -a allow_all_ext_traffic_to_local_service_arr 
+declare -a allow_all_ext_traffic_to_local_service_arr=()
 for _val in $allow_all_ext_traffic_to_local_service ; do
    allow_all_ext_traffic_to_local_service_arr+=("$_val")
 done
@@ -125,7 +125,7 @@ done
 # ---
 # - Allow local services from given extern networks
 # ---
-declare -a allow_ext_net_to_local_service_arr 
+declare -a allow_ext_net_to_local_service_arr=()
 for _val in $allow_ext_net_to_local_service ; do
    allow_ext_net_to_local_service_arr+=("$_val")
 done
@@ -133,7 +133,7 @@ done
 # ---
 # - Allow all traffic from extern address/network to local address/network
 # ---
-declare -a allow_ext_net_to_local_net_arr
+declare -a allow_ext_net_to_local_net_arr=()
 for _val in $allow_ext_net_to_local_net ; do
    allow_ext_net_to_local_net_arr+=("$_val")
 done
@@ -141,7 +141,7 @@ done
 # ---
 # - Block all extern traffic to (given) local network
 # ---
-declare -a block_all_ext_to_local_net_arr
+declare -a block_all_ext_to_local_net_arr=()
 for _net in $block_all_ext_to_local_net ; do
    block_all_ext_to_local_net_arr+=("$_net")
 done
@@ -149,7 +149,7 @@ done
 # ---
 # - Allow all traffic from local ip to the internet
 # ---
-declare -a allow_local_ip_to_inet_arr
+declare -a allow_local_ip_to_inet_arr=()
 for _ip in $allow_local_ip_to_inet ; do
    allow_local_ip_to_inet_arr+=("$_ip")
 done
@@ -157,7 +157,7 @@ done
 # ---
 # - Allow local services from given local networks
 # ---
-declare -a allow_local_net_to_local_service_arr 
+declare -a allow_local_net_to_local_service_arr=()
 for _val in $allow_local_net_to_local_service ; do
    allow_local_net_to_local_service_arr+=("$_val")
 done
@@ -165,7 +165,7 @@ done
 # ---
 # - Allow all traffic from local network to local ip-address
 # ---
-declare -a allow_local_net_to_local_ip_arr
+declare -a allow_local_net_to_local_ip_arr=()
 for _val in $allow_local_net_to_local_ip ; do
    allow_local_net_to_local_ip_arr+=("$_val")
 done
@@ -173,7 +173,7 @@ done
 # ---
 # - Allow all traffic from local ip-address to local network
 # ---
-declare -a allow_local_ip_to_local_net_arr
+declare -a allow_local_ip_to_local_net_arr=()
 for _val in $allow_local_ip_to_local_net ; do
    allow_local_ip_to_local_net_arr+=("$_val")
 done
@@ -181,7 +181,7 @@ done
 # ---
 # - Allow all traffic from (one) local network to (another) local network
 # ---
-declare -a allow_local_net_to_local_net_arr
+declare -a allow_local_net_to_local_net_arr=()
 for _val in $allow_local_net_to_local_net ; do
    allow_local_net_to_local_net_arr+=("$_val")
 done
@@ -189,7 +189,7 @@ done
 # ---
 # - Allow local ip address from given local interface
 # ---
-declare -a allow_local_if_to_local_ip_arr
+declare -a allow_local_if_to_local_ip_arr=()
 for _val in $allow_local_if_to_local_ip ; do
    allow_local_if_to_local_ip_arr+=("$_val")
 done
@@ -197,7 +197,7 @@ done
 # ---
 # - Allow extern service from given local interface
 # ---
-declare -a allow_local_if_to_ext_service_arr
+declare -a allow_local_if_to_ext_service_arr=()
 for _val in $allow_local_if_to_ext_service ; do
    allow_local_if_to_ext_service_arr+=("$_val")
 done
@@ -205,7 +205,7 @@ done
 # ---
 # - Allow extern network from given local interface
 # ---
-declare -a allow_local_if_to_ext_net_arr
+declare -a allow_local_if_to_ext_net_arr=()
 for _val in $allow_local_if_to_ext_net ; do
    allow_local_if_to_ext_net_arr+=("$_val")
 done
@@ -213,7 +213,7 @@ done
 # ---
 # - Allow extern service from given local network 
 # ---
-declare -a allow_local_net_to_ext_service_arr
+declare -a allow_local_net_to_ext_service_arr=()
 for _val in $allow_local_net_to_ext_service ; do
    allow_local_net_to_ext_service_arr+=("$_val")
 done
@@ -221,7 +221,7 @@ done
 # ---
 # - Allow extern network from given local network
 # ---
-declare -a allow_local_net_to_ext_net_arr
+declare -a allow_local_net_to_ext_net_arr=()
 for _val in $allow_local_net_to_ext_net ; do
    allow_local_net_to_ext_net_arr+=("$_val")
 done
@@ -229,7 +229,7 @@ done
 # ---
 # - Allow extern service
 # ---
-declare -a allow_to_ext_service_arr
+declare -a allow_to_ext_service_arr=()
 for _val in $allow_to_ext_service ; do
    allow_to_ext_service_arr+=("$_val")
 done
@@ -237,7 +237,7 @@ done
 # ---
 # - Allow extern network
 # ---
-declare -a allow_to_ext_net_arr
+declare -a allow_to_ext_net_arr=()
 for _val in $allow_to_ext_net ; do
    allow_to_ext_net_arr+=("$_val")
 done
@@ -245,7 +245,7 @@ done
 # ---
 # - Separate local Networks
 # ---
-declare -a separate_local_network_arr
+declare -a separate_local_network_arr=()
 for _net in $separate_local_networks ; do
    separate_local_network_arr+=("$_net")
 done
@@ -253,7 +253,7 @@ done
 # ---
 # - Separate local Interfaces
 # ---
-declare -a separate_local_if_arr
+declare -a separate_local_if_arr=()
 for _net in $separate_local_ifs ; do
    separate_local_if_arr+=("$_net")
 done
@@ -261,12 +261,12 @@ done
 # ---
 # - Generally block ports on extern interfaces
 # ---
-declare -a block_tcp_port_arr
+declare -a block_tcp_port_arr=()
 for _port in $block_tcp_ports ; do
    block_tcp_port_arr+=("$_port")
 done
 
-declare -a block_udp_port_arr
+declare -a block_udp_port_arr=()
 for _port in $block_udp_ports ; do
    block_udp_port_arr+=("$_port")
 done
@@ -274,12 +274,12 @@ done
 # ---
 # - Not wanted on intern interfaces
 # ---
-declare -a not_wanted_on_gw_tcp_port_arr
+declare -a not_wanted_on_gw_tcp_port_arr=()
 for _port in $not_wanted_on_gw_tcp_ports ; do
    not_wanted_on_gw_tcp_port_arr+=("$_port")
 done
 
-declare -a not_wanted_on_gw_udp_port_arr
+declare -a not_wanted_on_gw_udp_port_arr=()
 for _port in $not_wanted_on_gw_udp_ports ; do
    not_wanted_on_gw_udp_port_arr+=("$_port")
 done
@@ -287,7 +287,7 @@ done
 # ---
 # - Private IPs / IP-Ranges allowed to forward
 # ---
-declare -a forward_private_ip_arr
+declare -a forward_private_ip_arr=()
 for _ip in $forward_private_ips ; do
    forward_private_ip_arr+=("$_ip")
 done
@@ -295,7 +295,7 @@ done
 # ---
 # - IP Addresses to log
 # ---
-declare -a log_ip_arr
+declare -a log_ip_arr=()
 for _ip in $log_ips ; do
    log_ip_arr+=("$_ip")
 done
@@ -303,7 +303,7 @@ done
 # ---
 # - Network Devices local DHCP Client
 # ---
-declare -a dhcp_client_interfaces_arr
+declare -a dhcp_client_interfaces_arr=()
 for _dev in $dhcp_client_interfaces ; do
    dhcp_client_interfaces_arr+=("$_dev")
 done
@@ -311,7 +311,7 @@ done
 # ---
 # - IP Addresses DHCP Failover Server
 # ---
-declare -a dhcp_failover_server_ip_arr
+declare -a dhcp_failover_server_ip_arr=()
 for _ip in $dhcp_failover_server_ips ; do
    dhcp_failover_server_ip_arr+=("$_ip")
 done
@@ -319,7 +319,7 @@ done
 # ---
 # - IP Adresses DNS Server
 # ---
-declare -a dns_server_ip_arr
+declare -a dns_server_ip_arr=()
 for _ip in $dns_server_ips ; do
    dns_server_ip_arr+=("$_ip")
 done
@@ -327,7 +327,7 @@ done
 # ---
 # - IP Adresses SSH Server only at ocal Networks
 # ---
-declare -a ssh_server_only_local_ip_arr
+declare -a ssh_server_only_local_ip_arr=()
 for _ip in $ssh_server_only_local_ips ; do
    ssh_server_only_local_ip_arr+=("$_ip")
 done
@@ -335,7 +335,7 @@ done
 # ---
 # - IP Adresses HTTP Server only local Networks
 # ---
-declare -a http_server_only_local_ip_arr
+declare -a http_server_only_local_ip_arr=()
 for _ip in $http_server_only_local_ips ; do
    http_server_only_local_ip_arr+=("$_ip")
 done
@@ -343,7 +343,7 @@ done
 # ---
 # - IP Addresses Mail Server only local Networks
 # ---
-declare -a mail_server_only_local_ip_arr
+declare -a mail_server_only_local_ip_arr=()
 for _ip in $mail_server_only_local_ips ; do
    mail_server_only_local_ip_arr+=("$_ip")
 done
@@ -351,7 +351,7 @@ done
 # ---
 # - IP Addresses FTP Server
 # ---
-declare -a ftp_server_only_local_ip_arr
+declare -a ftp_server_only_local_ip_arr=()
 for _ip in $ftp_server_only_local_ips ; do
    ftp_server_only_local_ip_arr+=("$_ip")
 done
@@ -359,7 +359,7 @@ done
 # ---
 # - IP Addresses Samba Server
 # ---
-declare -a samba_server_local_ip_arr
+declare -a samba_server_local_ip_arr=()
 for _ip in $samba_server_local_ips ; do
    samba_server_local_ip_arr+=("$_ip")
 done
@@ -367,7 +367,7 @@ done
 # ---
 # - IP Addresses LDAP Server
 # ---
-declare -a ldap_server_local_ip_arr
+declare -a ldap_server_local_ip_arr=()
 for _ip in $ldap_server_local_ips ; do
    ldap_server_local_ip_arr+=("$_ip")
 done
@@ -375,7 +375,7 @@ done
 # ---
 # - IP Adresses Telephone Systems
 # ---
-declare -a tele_sys_ip_arr
+declare -a tele_sys_ip_arr=()
 for _ip in $tele_sys_ips ; do
    tele_sys_ip_arr+=("$_ip")
 done
@@ -383,7 +383,7 @@ done
 # ---
 # - IP Adresses SNMP Server
 # ---
-declare -a snmp_server_ip_arr
+declare -a snmp_server_ip_arr=()
 for _ip in $snmp_server_ips ; do
    snmp_server_ip_arr+=("$_ip")
 done
@@ -391,7 +391,7 @@ done
 # ---
 # - IP Adresses Munin Service 
 # ---
-declare -a munin_local_server_ip_arr
+declare -a munin_local_server_ip_arr=()
 for _ip in $munin_local_server_ips ; do
    munin_local_server_ip_arr+=("$_ip")
 done
@@ -399,7 +399,7 @@ done
 # ---
 # - IP Adresses Checkmk Monitoring Service 
 # ---
-declare -a checkmk_local_server_ip_arr
+declare -a checkmk_local_server_ip_arr=()
 for _ip in $checkmk_local_server_ips ; do
    checkmk_local_server_ip_arr+=("$_ip")
 done
@@ -407,7 +407,7 @@ done
 # ---
 # - IP Adresses XyMon
 # ---
-declare -a xymon_server_ip_arr
+declare -a xymon_server_ip_arr=()
 for _ip in $xymon_server_ips ; do
    xymon_server_ip_arr+=("$_ip")
 done
@@ -415,7 +415,7 @@ done
 # ---
 # - IP Adresses IPMI interface
 # ---
-declare -a ipmi_server_ip_arr
+declare -a ipmi_server_ip_arr=()
 for _ip in $ipmi_server_ips ; do
    ipmi_server_ip_arr+=("$_ip")
 done
@@ -423,19 +423,19 @@ done
 # ---
 # -IP Addresses Ubiquiti Unifi Accesspoints
 # ---
-declare -a unifi_ap_local_ip_arr
+declare -a unifi_ap_local_ip_arr=()
 for _ip in $unifi_ap_local_ips ; do
    unifi_ap_local_ip_arr+=("$_ip")
 done
-declare -a unifi_ap_extern_ip_arr
+declare -a unifi_ap_extern_ip_arr=()
 for _ip in $unifi_ap_extern_ips ; do
    unifi_ap_extern_ip_arr+=("$_ip")
 done
-declare -a unifi_controller_gateway_ip_arr
+declare -a unifi_controller_gateway_ip_arr=()
 for _ip in $unifi_controller_gateway_ips ; do
    unifi_controller_gateway_ip_arr+=("$_ip")
 done
-declare -a unify_controller_local_net_ip_arr
+declare -a unify_controller_local_net_ip_arr=()
 for _ip in $unify_controller_local_net_ips ; do
    unify_controller_local_net_ip_arr+=("$_ip")
 done
@@ -443,7 +443,7 @@ done
 # ---
 # - IP Addresses Printer
 # -
-declare -a printer_ip_arr
+declare -a printer_ip_arr=()
 for _ip in $printer_ips ; do
    printer_ip_arr+=("$_ip")
 done
@@ -452,7 +452,7 @@ done
 # ---
 # - IP Adresses Brother Scanner (brscan)
 # ---
-declare -a brother_scanner_ip_arr
+declare -a brother_scanner_ip_arr=()
 for _ip in $brother_scanner_ips ; do
    brother_scanner_ip_arr+=("$_ip")
 done
@@ -460,7 +460,7 @@ done
 # ---
 # - IP Adresses Epson Network Scanner
 # ---
-declare -a epson_scanner_ip_arr
+declare -a epson_scanner_ip_arr=()
 for _ip in $epson_scanner_ips ; do
    epson_scanner_ip_arr+=("$_ip")
 done
@@ -468,7 +468,7 @@ done
 # ---
 # - IP Addresses PCNS Server
 # ---
-declare -a pcns_server_ip_arr
+declare -a pcns_server_ip_arr=()
 for _ip in $pcns_server_ips ; do
    pcns_server_ip_arr+=("$_ip")
 done
@@ -477,7 +477,7 @@ done
 # ---
 # - IP Addresses VNC Service
 # ---
-declare -a rm_server_ip_arr
+declare -a rm_server_ip_arr=()
 for _ip in $rm_server_ips ; do
    rm_server_ip_arr+=("$_ip")
 done
@@ -486,7 +486,7 @@ done
 # - IP Addresses Rsync Out
 # ---
 # local
-declare -a rsync_out_ip_arr
+declare -a rsync_out_ip_arr=()
 for _ip in $rsync_out_ips ; do
    rsync_out_ip_arr+=("$_ip")
 done
@@ -494,7 +494,7 @@ done
 # ---
 # - Other local Services
 # ---
-declare -a other_service_arr
+declare -a other_service_arr=()
 for _val in $other_services ; do
    other_service_arr+=("$_val")
 done
@@ -508,8 +508,8 @@ done
 # Services
 # ===
 
-declare -a out_udp_port_arr
-declare -a out_tcp_port_arr
+declare -a out_udp_port_arr=()
+declare -a out_tcp_port_arr=()
 
 # ---
 # - DNS out only
@@ -530,7 +530,7 @@ fi
 #
 # SSH Services only local Network
 # ---
-declare -a ssh_port_arr
+declare -a ssh_port_arr=()
 for _port in $ssh_ports ; do
 
    ssh_port_arr+=("$_port")
@@ -541,7 +541,7 @@ done
 # ---
 # - Cisco kompartible VPN Ports
 # ---
-declare -a cisco_vpn_out_port_arr
+declare -a cisco_vpn_out_port_arr=()
 for _port in $cisco_vpn_out_ports ; do
 
    if containsElement "${_port}" "${out_tcp_port_arr[@]}" ; then
@@ -560,15 +560,15 @@ done
 # ---
 # - VPN Ports
 # ---
-declare -a vpn_gw_port_arr
+declare -a vpn_gw_port_arr=()
 for _port in $vpn_gw_ports ; do
    vpn_gw_port_arr+=("$_port")
 done
-declare -a vpn_local_net_port_arr
+declare -a vpn_local_net_port_arr=()
 for _port in $vpn_local_net_ports ; do
    vpn_local_net_port_arr+=("$_port")
 done
-declare -a vpn_out_port_arr
+declare -a vpn_out_port_arr=()
 if [[ -z "$vpn_out_ports" ]] ; then
    vpn_out_ports="$standard_vpn_port"
 fi
@@ -589,15 +589,15 @@ done
 # ---
 # - WireGuard Ports
 # ---
-declare -a wg_gw_port_arr
+declare -a wg_gw_port_arr=()
 for _port in $wg_gw_ports ; do
    wg_gw_port_arr+=("$_port")
 done
-declare -a wg_local_net_port_arr
+declare -a wg_local_net_port_arr=()
 for _port in $wg_local_net_ports ; do
    wg_local_net_port_arr+=("$_port")
 done
-declare -a wg_out_port_arr
+declare -a wg_out_port_arr=()
 if [[ -z "$wg_out_ports" ]] ; then
    wg_out_ports="$standard_wg_port"
 fi
@@ -621,7 +621,7 @@ done
 # - Standard http ports
 # ---
 #HTTP(S) OUT
-declare -a standard_http_port_arr
+declare -a standard_http_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $standard_http_ports ; do
 
@@ -651,7 +651,7 @@ fi
 # ---
 # - Standard mail user prts
 # ---
-declare -a standard_mailuser_port_arr
+declare -a standard_mailuser_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $standard_mailuser_ports ; do
 
@@ -687,8 +687,8 @@ fi
 # - Samba Service only out
 # ---
 
-declare -a samba_udp_port_arr
-declare -a samba_udp_port_local_arr
+declare -a samba_udp_port_arr=()
+declare -a samba_udp_port_local_arr=()
 for _port in $samba_udp_ports ; do
 
    samba_udp_port_local_arr+=("${_port}")
@@ -704,8 +704,8 @@ for _port in $samba_udp_ports ; do
    fi
 done
 
-declare -a samba_tcp_port_arr
-declare -a samba_tcp_port_local_arr
+declare -a samba_tcp_port_arr=()
+declare -a samba_tcp_port_local_arr=()
 for _port in $samba_tcp_ports ; do
 
    samba_tcp_port_local_arr+=("${_port}")
@@ -726,8 +726,8 @@ done
 # - LDAP Ports
 # ---
 
-declare -a ldap_udp_port_arr
-declare -a ldap_udp_port_local_arr
+declare -a ldap_udp_port_arr=()
+declare -a ldap_udp_port_local_arr=()
 for _port in $ldap_udp_ports ; do
    ldap_udp_port_local_arr+=("$_port")
 
@@ -742,8 +742,8 @@ for _port in $ldap_udp_ports ; do
    fi
 done
 
-declare -a ldap_tcp_port_arr
-declare -a ldap_tcp_port_local_arr
+declare -a ldap_tcp_port_arr=()
+declare -a ldap_tcp_port_local_arr=()
 for _port in $ldap_tcp_ports ; do
    ldap_tcp_port_local_arr+=("$_port")
 
@@ -945,7 +945,7 @@ fi
 # ---
 # - Outbound Streaming
 # ---
-declare -a outbound_streaming_tcp_port_arr
+declare -a outbound_streaming_tcp_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $standard_outbound_streaming_tcp_ports ; do
 
@@ -962,7 +962,7 @@ IFS=',' ; for _port in $standard_outbound_streaming_tcp_ports ; do
 done
 IFS="$CUR_IFS"
 
-declare -a outbound_streaming_udp_port_arr
+declare -a outbound_streaming_udp_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $standard_outbound_streaming_udp_ports ; do
 
@@ -998,8 +998,8 @@ else
    allow_stun_turn_service_out=false
 fi
 
-declare -a standard_turn_service_tcp_port_arr
-declare -a standard_turn_service_udp_port_arr
+declare -a standard_turn_service_tcp_port_arr=()
+declare -a standard_turn_service_udp_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $standard_turn_service_ports ; do
    if ! containsElement "${_port}" "${out_tcp_port_arr[@]}" ; then
@@ -1044,7 +1044,7 @@ IFS="$CUR_IFS"
 # ---
 # - Echo360 Video Plattform
 # ---
-declare -a echo360_udp_port_arr
+declare -a echo360_udp_port_arr=()
 
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $standard_echo360_udp_ports ; do
@@ -1066,7 +1066,7 @@ IFS="$CUR_IFS"
 # ---
 # - BigBlueButton Video Conference Service
 # ---
-declare -a bigbluebutton_tcp_port_arr
+declare -a bigbluebutton_tcp_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $bigbluebutton_tcp_ports ; do
 
@@ -1083,7 +1083,7 @@ IFS=',' ; for _port in $bigbluebutton_tcp_ports ; do
 done
 IFS="$CUR_IFS"
 
-declare -a bigbluebutton_udp_port_arr
+declare -a bigbluebutton_udp_port_arr=()
 CUR_IFS="$IFS"
 IFS=',' ; for _port in $bigbluebutton_udp_ports ; do
 
@@ -1105,11 +1105,11 @@ IFS="$CUR_IFS"
 # - Skype for Business Online und Microsoft Teams
 # ---
 CUR_IFS="$IFS"
-declare -a ms_skype_teams_udp4_host_arr
-declare -a ms_skype_teams_udp6_host_arr
-declare -a ms_skype_teams_udp4_port_arr
-declare -a ms_skype_teams_udp6_port_arr
-declare -a ms_skype_teams_tcp_port_arr
+declare -a ms_skype_teams_udp4_host_arr=()
+declare -a ms_skype_teams_udp6_host_arr=()
+declare -a ms_skype_teams_udp4_port_arr=()
+declare -a ms_skype_teams_udp6_port_arr=()
+declare -a ms_skype_teams_tcp_port_arr=()
 if [[ -n "$ms_skype_teams_udp4_hosts" ]]; then
    for _host in $ms_skype_teams_udp4_hosts ; do
       ms_skype_teams_udp4_host_arr+=("$_host")
@@ -1147,8 +1147,8 @@ IFS="$CUR_IFS"
 # - Webex Meeting Video Conference Service out only
 # ---
 
-declare -a webex_tcp_port_arr
-declare -a webex_udp_port_arr
+declare -a webex_tcp_port_arr=()
+declare -a webex_udp_port_arr=()
 
 IFS=',' ; for _port in $webex_tcp_ports ; do
 
@@ -1196,8 +1196,8 @@ IFS="$CUR_IFS"
 # Zoom Meetings - Video Conference - adjust 'zoom_tcp_ports'
 # ---
 
-declare -a zoom_tcp_port_arr
-declare -a zoom_udp_port_arr
+declare -a zoom_tcp_port_arr=()
+declare -a zoom_udp_port_arr=()
 
 IFS=',' ; for _port in $zoom_tcp_ports ; do
 
@@ -1232,8 +1232,8 @@ IFS="$CUR_IFS"
 # - Jitsi Video Conference Service out only
 # ---
 
-declare -a jitsi_tcp_port_arr
-declare -a jitsi_udp_port_arr
+declare -a jitsi_tcp_port_arr=()
+declare -a jitsi_udp_port_arr=()
 
 IFS=',' ; for _port in $jitsi_tcp_ports ; do
 
@@ -1268,8 +1268,8 @@ IFS="$CUR_IFS"
 # - alfaview - Video Conferencing Systems
 # ---
 
-declare -a alfaview_tcp_port_arr
-declare -a alfaview_udp_port_arr
+declare -a alfaview_tcp_port_arr=()
+declare -a alfaview_udp_port_arr=()
 
 IFS=',' ; for _port in $alfaview_tcp_ports ; do
 
@@ -1303,8 +1303,8 @@ IFS="$CUR_IFS"
 # - Nextcloud 'talk' App
 # ---
 
-declare -a nc_turn_tcp_port_arr
-declare -a nc_turn_udp_port_arr
+declare -a nc_turn_tcp_port_arr=()
+declare -a nc_turn_udp_port_arr=()
 
 IFS=',' ; for _port in $nc_turn_ports ; do
 
@@ -1352,7 +1352,7 @@ IFS="$CUR_IFS"
 # ---
 # - Special TCP Ports OUT
 # ---
-declare -a tcp_out_port_arr
+declare -a tcp_out_port_arr=()
 for _port in $tcp_out_ports ; do
 
    if containsElement "${_port}" "${out_tcp_port_arr[@]}" ; then
@@ -1369,7 +1369,7 @@ done
 # - Special UDP Ports OUT
 # ---
 # local
-declare -a udp_out_port_arr
+declare -a udp_out_port_arr=()
 for _port in $udp_out_ports ; do
 
    if containsElement "${_port}" "${out_udp_port_arr[@]}" ; then
@@ -1384,7 +1384,7 @@ done
 # ---
 # - Rsync Out Ports
 # --
-declare -a rsync_port_arr
+declare -a rsync_port_arr=()
 for _port in $rsync_ports ; do
 
    if containsElement "${_port}" "${out_tcp_port_arr[@]}" ; then
@@ -1410,7 +1410,7 @@ if $allow_game_xbox_one_out \
 else
    allow_gaming_out=false
 fi
-declare -a game_ports_udp_arr
+declare -a game_ports_udp_arr=()
 if $allow_game_xbox_360_out ; then
    IFS=',' ; for _port in $standard_game_xbox_one_udp_ports ; do
 
@@ -1497,7 +1497,7 @@ if $allow_game_steam_out ; then
 fi
 
 
-declare -a game_ports_tcp_arr
+declare -a game_ports_tcp_arr=()
 if $allow_game_xbox_360_out ; then
    IFS=',' ; for _port in $standard_game_xbox_one_tcp_ports ; do
 
@@ -1593,12 +1593,12 @@ fi
 # - IPMI
 # ---
 
-declare -a ipmi_udp_port_arr
+declare -a ipmi_udp_port_arr=()
 for _port in $ipmi_udp_ports ; do
    ipmi_udp_port_arr+=("$_port")
 done
 
-declare -a ipmi_tcp_port_arr
+declare -a ipmi_tcp_port_arr=()
 for _port in $ipmi_tcp_ports ; do
    ipmi_tcp_port_arr+=("$_port")
 done
@@ -1607,7 +1607,7 @@ done
 # ---
 # - Portforwrds TCP
 # ---
-declare -a portforward_tcp_arr
+declare -a portforward_tcp_arr=()
 for _str in $portforward_tcp ; do
    portforward_tcp_arr+=("$_str")
 done
@@ -1615,7 +1615,7 @@ done
 # ---
 # - Portforwrds UDP
 # ---
-declare -a portforward_udp_arr
+declare -a portforward_udp_arr=()
 for _str in $portforward_udp ; do
    portforward_udp_arr+=("$_str")
 done
@@ -1623,17 +1623,17 @@ done
 # ---
 # - MAC Address Filtering
 # ---
-declare -a allow_all_mac_src_address_arr
+declare -a allow_all_mac_src_address_arr=()
 for _mac in $allow_all_mac_src_addresses ; do
    allow_all_mac_src_address_arr+=("$_mac")
 done
 
-declare -a allow_local_mac_src_address_arr
+declare -a allow_local_mac_src_address_arr=()
 for _mac in $allow_local_mac_src_addresses ; do
    allow_local_mac_src_address_arr+=("$_mac")
 done
 
-declare -a allow_remote_mac_src_address_arr
+declare -a allow_remote_mac_src_address_arr=()
 for _mac in $allow_remote_mac_src_addresses ; do
    allow_remote_mac_src_address_arr+=("$_mac")
 done