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VoIP subscriber gateways
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Start port, End port
– these two parameters determine the range of port destination on
an external network. Received to WAN interface packet will fall under this rule if its
destination port locates in specified range;
Local start port
–
determine start port of the destination port range in local network for
packet retranslation. Terminal port of the range is automatically calculated in the context
of range size for the destination ports in external network (defined by the difference
between
Terminal port
and
Start port
);
Protocol
–
selection of the packet protocol falling under this rule: TCP, UDP, TCP/UDP;
–
WAN IP
–
selection of
source IP address that sends packets into external networks. When ‘
Any
’
value is set, packet translation will be permitted (packets are transmitted from any IP address of
external network). When ‘specify’ type is selected, the packet translation will be permitted into
local network (source IP address of packets are equal to value from
IP address
field).
Port forwarding rule will work as follows: If the packet destination port (coming to the device WAN
interface) belongs to the range from
‘Start
port’
to
‘Terminal
port’
, source IP address is equal to address
assigned in
'WAN IP address'
field (if this address is specified). Packet protocol is equal to value from
‘Protocol’
field. The packet will be retransmitted to interface’s LAN with destination address spoofing to the LAN IP
address and with destination port spoofing to a value of LAN port range (the start value of the range is
determined by ‘Start LAN port’ parameter).
To add rule in the table, click
‘
Save changes
’
button. To add record into non-volatile memory, click ‘
Apply
’
button
.
The changes in the submenu are effective immediately after clicking
‘
Apply Changes
’
button.
Reboot is not required.
3.1.2.7
‘
Static routes
’
submenu
Use the menu to set up static device routs and display current routing table.