Netopia Router PN Series Uživatelský manuál stáhnout pdf (Strana 250)

B-14 Reference Guide

The Netopia Router’s connection proﬁles for Routers B and C create

entries in its IP routing table. One entry points to the subnet

a.b.c.128, while a second entry points to the subnet a.b.c.248. The

IP routing table might look similar to the following:

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

Let’s see how a packet from the Internet gets routed to the host

with IP address a.b.c.249, which is served 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 Router, which

examines its destination IP address.

Connection proﬁle Remote IP address Remote IP mask

Bits available for host

address

for Router B a.b.c.128 255.255.255.192 7

for Router C a.b.c.248 255.255.255.248 3

1 2 ... 245 246 247 248 249 250 251 252 253 254 255 ... 300 301

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Netopia Router PN Series Uživatelský manuál Strana 250