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SMC Networks Router SMCWBR14S-N2 User Manual

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Page 91

WIRELESS
4-39
Manual
For client devices without WPS, manually configure the device as displayed 
on the screen. 

Page 92

CONFIGURING THE BAR RICADE
4-40
NAT
Network Address Translation allows multiple users to access the Internet 
sharing one public IP.  

Page 93

NAT
4-41
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. 
  

Page 94

CONFIGURING THE BAR RICADE
4-42
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...

Page 95

NAT
4-43
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.
  

Page 96

CONFIGURING THE BAR RICADE
4-44
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.
•...

Page 97

ROUTING
4-45
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....

Page 98

CONFIGURING THE BAR RICADE
4-46
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. 

Page 99

ROUTING
4-47
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....

Page 100

CONFIGURING THE BAR RICADE
4-48
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...
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