Netopia r6100 Guida Di Riferimento

Let’s see how a packet from the Internet gets routed to the host with IP address a.b.c.249, which is ser ved by 
Router C. The packet first arrives at Router A, which delivers it to its local network (a.b.c.0). The packet is then 
received by the Netopia R6000 Series, which examines its destination IP address.

The Netopia R6000 Series compares the packet’s destination IP address with the routes in its IP routing table. 
It begins with the route at the bottom of the list and works up until there’s a match or the route to the default 
gateway is reached.

When a.b.c.249 is masked by the first route’s subnet mask, it yields a.b.c.248, which matches the network 
address in the route. The Netopia R6000 Series uses the connection profile associated with the route to 
connect to Router C, and then for wards the packet. Router C delivers the packet to the host on its local 
network.

                                     IP Routing Table

       Network Address-Subnet Mask-----via Router------Port--Age--------Type------
       ----------------------------------SCROLL UP--------------------------------
       0.0.0.0         0.0.0.0         a.b.c.1 WAN     3719             Management
       127.0.0.1       255.255.255.255 127.0.0.1 lp1   6423             Local
       a.b.c.128       255.255.255.192 a.b.c.128 WAN   5157             Local
       a.b.c.248       255.255.255.248 a.b.c.248 WAN   6205             Local

       ---------------------------------SCROLL DOWN-------------------------------
       UPDATE