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6.3.4
ALG
SIP ALG is Application layer gateway. If the user has an IP phone(SIP) or VoIP
gateway(SIP) behind the ADSL router, the SIP ALG can help VoIP packet
passthrough the router (NAT enabled).
Note
: SIP (Session Initiation Protocol, RFC3261) is the protocol of choice for most
VoIP (Voice over IP) phones to initiate communication. This ALG is only valid for SIP
protocol running on UDP port 5060.
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6.4 Security
To display the Security function, you need to enable the firewall feature in the WAN
Setup.
6.4.1
IP Filtering
IP filtering allows you to create a filter rule to identify outgoing/incoming IP traffic
by specifying a new filter name and at least one condition below. All of the specified
conditions in this filter rule must be satisfied for the rule to take effect. Click
'Save/Apply' to save and activate the filter.
Outgoing
To add a filtering rule, simply click the Add button. The following screen will be
displayed.
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Filter Name
Type a name for the filter rule.
Protocol
User can select from: TCP, TCP/UDP, UDP or
ICMP.
Source IP address
Enter source IP address.
Source Subnet Mask
Enter source subnet mask.
Source Port (port or port:port)
Enter source port number.
Destination IP address
Enter destination IP address.
Destination Subnet Mask
Enter destination subnet mask.
Destination port (port or port:port)
Enter destination port number.
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Incoming
To add a filtering rule, simply click the Add button. The following screen will be
displayed.
To configure the parameters, please reference
Outgoing
table above.
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6.4.2
Parental Control
Parental control: allows parents, schools, and libraries to set access times for
Internet use.
To add a parental control, simply click the Add button. The following screen will be
displayed.
Username:
Input Internet access user name
MAC:
Set the MAC address to access the Internet
Mon, Tue, Wed, Thu, Fri, Sat, Sun:
Set which days that will have block
restrictions to Internet access
Start, End Blocking Time:
Set Internet block start and stop time
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