Geneko GWR-I series, User Manual

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USER MANUAL GWR-I Cellular Router Series
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Metric
Metric represents the “cost” of transmission for routing purposes. IP routing
uses hop count as the measurement of cost, with a minimum of 1 for directly
connected networks. Enter a number that approximates the cost for this link.
The number need not be precise, but it must be between 1 and 15. In practice, 2
or 3 is usually a good number.
Interface
Interface represents the “exit” of transmission for routing purposes. In this case
Eth0
represents LAN interface and
ppp0
represents GSM/UMTS mobile
interface of the GWR-I Router.
TCP/UDP Traffic forwarding
Enable This check box allows you to activate/deactivate this static port translation.
Protocol Choose between TCP and UDP protocol.
Destination IP This field specifies IP address of the incoming traffic.
Destination Netmask This field specifies netmask for the previous address.
Destination Port This is the TCP/UDP port of application.
Forward to IP This filed specifies IP address where packets should be forwarded.
Forward to port Specify TCP/UDP port on which the traffic is going to be forwarded.
Interface
Select interface where portforwarding is done. Portforwarding from outside
(WAN) interface to inside (LAN) interface is done on PPP, and in reverse
direction on Ethernet interface
Add
Click Add to insert (add) new item in table to the GWR-I Router.
Remove Click Remove to delete selected item from table.
Reload Click Reload to discard any changes and reload previous settings.
Save
Click Save to save your changes back to the GWR-I Router. After pressing Save
button it make take more than 10 seconds for router to save parameters and
become operational again.
Table 7 – Routing parameters
Port translation
For incoming data, the GWR-I Router forwards IP traffic destined for a specific port, port range or
GRE/IPsec protocol from the cellular interface to a private IP address on the Ethernet “side” of the GWR-I
Router.
Settings – Dynamic Routing Protocol
Dynamic routing performs the same function as static routing except it is more robust. Static routing
allows routing tables in specific routers to be set up in a static manner so network routes for packets are set.
If a router on the route goes down the destination may become unreachable. Dynamic routing allows
routing tables in routers to change as the possible routes change.
Routing Information Protocol (RIP)
The Routing Information Protocol (RIP) is a dynamic routing protocol used in local and wide area
networks. As such it is classified as an interior gateway protocol (IGP) using the distance-vector routing