ELTEX TAU-8.IP - Page 74

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74 VoIP subscriber gateways
– FORWARD – transit traffic. When checked, the following fields will be available for
editing:
Starting source IP address – assign start IP address of the transmitter. After ‘/’ symbol
you may assign subnet mask (for example, 192.168.18.0/24) to extract all the range
of addresses. When mask is assigned, ‘Destination address number’ is not taken into
account;
Number of source IP addresses – field is used to assign address range of the
transmitter if the subnet mask of source is not specified;
Starting destination IP address – assign start IP address of receiver. After ‘/’ symbol
you may assign subnet mask (for example, 192.168.18.0/24) to extract all the range
of addresses. When mask is assigned, ‘Destination address number’ is not taken into
account;
Number of destination IP addresses – field is used to assign destination address range
if the subnet mask of source is not specified;
– Protocol – protocol of packet is subject of the rule (TCP, UDP, ICMP);
– Action – take action under the packets (drop/omit).
When TCP or UDP are selected the following settings will be available for editing:
Starting source port – start port of sender when packet is object of this rule;
Number of source ports – used to determine port range of sender;
Starting destination port – start port of receiver when packet will be object of this rule;
Number of destination ports – used to determine port range of sender.
When ICMP protocol is selected, the following settings will be available for editing:
Type of message – you may create rule for determined ICMP message type or for all the ICMP messages.
To add rule to the table, click ‘Save’ button. To discard settings, click ‘Cancel’ button. To edit record in
‘Action’ column of ‘Firewall Rules’ table, click button. To delete a record, click button.
To store settings into non-volatile memory, click ‘Apply’ button.
Changes in the submenu will be applied immediately after pressing ‘Apply’ button. Reboot is
not required.