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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.
