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NAT Mapping Table
This page displays the current NAPT (Network Address Port Translation)
address mappings.
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Route
These pages 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.
Click “Save Settings” to save the configuration.
Parameter
Description
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.
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RIP
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.
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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.
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.
Parameter
Description
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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.
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