SMC Networks Router SMCWBR14S-N2 User Manual

							WIRELESS
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Manual
For client devices without WPS, manually configure the device as displayed 
on the screen. 
						

							CONFIGURING THE BAR RICADE
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NAT
Network Address Translation allows multiple users to access the Internet 
sharing one public IP.  
						

							NAT
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Address Mapping
Allows one or more public IP addresses to be shared by multiple internal 
users. This also hides the internal network for increased privacy and 
security. Enter the Public IP address you wish to share into the Global IP 
field. Enter a range of internal IPs that will share the global IP into the 
“from” field. 
  
						

							CONFIGURING THE BAR RICADE
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Virtual Server
If you configure the Barricade as a virtual server, remote users accessing 
services such as web or FTP at your local site via public IP addresses can 
be automatically redirected to local servers configured with private IP 
addresses. In other words, depending on the requested service (TCP/UDP 
port number), the Barricade redirects the external service request to the 
appropriate server (located at another internal IP address).
 
For example, if you set Type/Public Port to TCP/80 (HTTP or web) and 
the Private IP/Port to 192.168.2.2/80, then all HTTP requests from 
outside users will be transferred to 192.168.2.2 on port 80. Therefore, by 
just entering the IP address provided by the ISP, Internet users can access 
the service they need at the local address to which you redirect them. 
The more common TCP service ports include: 
HTTP: 80, FTP: 21, Telnet: 23, and POP3: 110. 
A list of ports is maintained at the following link: 
http://www.iana.org/assignments/port-numbers. 
						

							NAT
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Special Application 
Some applications require multiple connections, such as Internet gaming, 
video-conferencing, and Internet telephony. These applications may not 
work when Network Address Translation (NAT) is enabled. If you need to 
run applications that require multiple connections, use these screens to 
specify the additional public ports to be opened for each application.
  
						

							CONFIGURING THE BAR RICADE
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NAT Mapping Table 
This screen displays the current NAPT (Network Address Port 
Translation) address mappings. 
NAT Mapping Table displays the current NAPT address mappings. The 
NAT address mappings are listed 20 lines per page, click the control 
buttons to move forwards and backwards. As the NAT mapping is 
dynamic, a Refresh button is provided to refresh the NAT Mapping Table 
with the mots updated values.
The content of the NAT Mapping Table is described as follows.
• Protocol - protocol of the flow. 
• Local IP - local (LAN) host’s IP address for the flow. 
• Local Port - local (LAN) host’s port number for the flow. 
•Pseudo IP - translated IP address for the flow. 
• Pseudo Port - translated port number for the flow. 
• Peer IP - remote (WAN) host’s IP address for the flow. 
• Peer Port - remote (WAN) host’s port number for the flow.  
						

							ROUTING
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Routing
These screens define routing related parameters, including static routes and 
RIP (Routing Information Protocol) parameters.
Static Route
 
Click Add to add a new static route to the list, or check the box of an 
already entered route and click Modify. Clicking Delete will remove an 
entry from the list.
Parameter Description
Index Check the box of the route you wish to delete or modify.
Network Address Enter the IP address of the remote computer for which 
to set a static route.
Subnet Mask Enter the subnet mask of the remote network for which 
to set a static route.
Gateway Enter the WAN IP address of the gateway to the remote 
network. 
						

							CONFIGURING THE BAR RICADE
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RIP
RIP sends routing-update messages at regular intervals and when the 
network topology changes. When a router receives a routing update that 
includes changes to an entry, it updates its routing table to reflect the new 
route. RIP routers maintain only the best route to a destination. After 
updating its routing table, the router immediately begins transmitting 
routing updates to inform other network routers of the change. 
						

							ROUTING
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Parameter Description
General RIP Parameters
RIP mode Globally enables or disables RIP.
Auto summary If Auto summary is disabled, then RIP packets will 
include sub-network information from all sub-
networks connected to the router. If enabled, this 
sub-network information will be summarized to 
one piece of information covering all sub-
networks. 
Table of current Interface RIP 
parameter
Interface The WAN interface to be configured.
Operation Mode Disable: RIP disabled on this interface.
Enable: RIP enabled on this interface.
Silent: Listens for route broadcasts and updates its 
route table. It does not participate in sending route 
broadcasts.
Version Sets the RIP (Routing Information Protocol) 
version to use on this interface. 
Poison Reverse A method for preventing loops that would cause 
endless retransmission of data traffic.
Authentication Required • None: No authentication. 
• Password: A password authentication key is 
included in the packet. If this does not match 
what is expected, the packet will be discarded. 
This method provides very little security as it 
is possible to learn the authentication key by 
watching RIP packets.
Authentication Code Password Authentication key. 
						

							CONFIGURING THE BAR RICADE
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Routing Table 
Parameter Description
Flags Indicates the route status: 
C = Direct connection on the same subnet.
S = Static route.
R = RIP (Routing Information Protocol) assigned route.
I = ICMP (Internet Control Message Protocol) Redirect route.
Network Address Destination IP address.
Netmask The subnetwork associated with the destination.
This is a template that identifies the address bits in the 
destination address used for routing to specific subnets. Each bit 
that corresponds to a “1” is part of the subnet mask number; 
each bit that corresponds to “0” is part of the host number.
Gateway The IP address of the router at the next hop to which frames are 
forwarded.
Interface The local interface through which the next hop of this route is 
reached. 
Metric When a router receives a routing update that contains a new or 
changed destination network entry, the router adds 1 to the 
metric value indicated in the update and enters the network in 
the routing table.