Page 91 / 160 Scroll up to view Page 86 - 90
Chapter 12
Network Address Translation (NAT)
91
The SIP ALG allows SIP calls to pass through NAT by examining and translating IP addresses
embedded in the data stream. When the Router registers with the SIP register server, the SIP ALG
translates the Router’s private IP address inside the SIP data stream to a public IP address. You do
not need to use STUN or an outbound proxy if you enable the SIP ALG.
Figure 47
Network Setting > NAT > ALG
Table 44
Network Setting > NAT > ALG
LABEL
DESCRIPTION
ALG
Enable this to make sure SIP (VoIP) works correctly with port-forwarding.
Page 92 / 160
13
Chapter
Chapter 13
Dynamic DNS
92
C
HAPTER
13
Chapter 13
Dynamic DNS
13.1 The Dynamic DNS Screen
Use the
Dynamic DNS
screen to enable DDNS and configure the DDNS settings on the Router. Click
Network Setting > Dynamic DNS
.
Figure 48
Network Setting > Dynamic DNS
Table 45
Network Setting > Dynamic DNS
LABEL
DESCRIPTION
Dynamic DNS
Select
Enable
to use dynamic DNS.
Service Provider
Select the name of your Dynamic DNS service provider.
Host Name
Type the domain name assigned to your Router by your Dynamic DNS provider.
Username
Type your user name for the Dynamic DNS service provider.
Password
Type your password for the Dynamic DNS service provider.
Apply
Click
Apply
to save your changes.
Undo
Click
Undo
to restore your previously saved settings.
Dynamic DNS Status
Page 93 / 160
Chapter 13
Dynamic DNS
93
User
Authentication
Result
This field displays the results of the Router’s attempt to authenticate with the Dynamic
DNS service provider.
Last Updated
Time
This field displays when the Router last updated its WAN IP address to the Dynamic
DNS service provider.
Current Dynamic
IP
This field displays the Router’s current WAN IP address.
Table 45
Network Setting > Dynamic DNS (continued)
LABEL
DESCRIPTION
Page 94 / 160
14
Chapter
Chapter 14
Filter
94
C
HAPTER
14
Chapter 14
Filter
14.1
The IP/MAC Filter Screen
Use the
IP/MAC Filter
screen to create and apply IP/MAC filters. Click
Security
>
Filter
to show the
IP/MAC Filter
screen.
Figure 49
Security > Filter > IP/MAC Filter
Page 95 / 160
Chapter 14
Filter
95
Table 46
Security > Filter > IP/MAC Filter
LABEL
DESCRIPTION
Rule Type selection
Select
White List
to create a filter rule that allows traffic.
Select
Black List
to create a filter rule that blocks traffic.
IP/MAC Filter Rule Index
Select the index number of the filter rule.
Active
Use this field to enable or disable the rule.
Interface
Select the interface to which to apply the filter.
Direction
Apply the filter to
Incoming
or
Outgoing
traffic direction.
Rule Type
Select
IP
to filter traffic by IP addresses.
Select
MAC
to filter traffic by MAC address.
Source IP Address
Enter the source IP address of the packets you wish to filter.
Subnet Mask
Enter the IP subnet mask for the source IP address
Port Number
Enter the source port of the packets that you wish to filter.
Destination IP Address
Enter the destination IP address of the packets you wish to filter.
Subnet Mask
Enter the IP subnet mask for the destination IP address.
Port Number
Enter the destination port of the packets that you wish to filter.
Protocol
Select
ICMP
,
TCP
or
UDP
for the upper layer protocol.
Source MAC Address
This field is only available when you select
MAC
in the
Rule Type
field.
Enter the MAC address of the packets you wish to filter.
Active
This field shows whether the rule is activated.
Interface
This field shows the interface to which the filter rule applies.
Direction
The filter rule applies to this traffic direction.
Src IP/Mask
This is the source IP address and subnet mask when you select
IP
as the rule
type.
This is the MAC address when you select
MAC
as the rule type.
Dest IP/Mask
This is the destination IP address and subnet mask.
MAC Address
For a MAC filter rule this field shows the MAC address of the packets to filter.
Src Port
This is the source port number.
Dest Port
This is the destination port number.
Protocol
This is the upper layer protocol.

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