Cisco Internet Router Cisco 12404, Installation And Configuration Manual, Page: 107 / 292

Chapter 3 Installing the Cisco 12404 Internet Router
Connecting to the Console Port and Auxiliary Ports
3-25
Cisco 12404 Internet Router Installation and Configuration Guide
OL-11636-01
Figure 3-13 is an example of the functionality of an Ethernet port. In this example,
you cannot access Network 2.0.0.0 through the Ethernet port (ETH0) on the PRP
in router A; you can only access the hosts and router C, which are in Network
1.0.0.0. (See dotted arrows in
Figure 3-13 .)
To access Network 2.0.0.0 from router A, you must use an interface port on one
of your line cards (in this example, a Packet-over-SONET (POS) line card in
router A) to go through router B, through router C, and into Network 2.0.0.0. (See
solid arrows in
Figure 3-13 .)
Figure 3-13 Using the Ethernet Port on the PRP
PRP Ethernet Connections
Figure 3-14 shows a PRP RJ-45 receptacle and cable connectors. The RJ-45
connection does not require an external transceiver. The RJ-45 connection
requires Category 5 unshielded twisted-pair (UTP) cables, which are not available
from Cisco Systems, but are available from commercial cable vendors.
Table 3-7
lists the port pinouts for the RJ-45 receptacle.
Router A
(Cisco 12000 series)
Router B
(Cisco 7500 series)
Router C
(Cisco 7500 series)
POS
EO
Host A
Network 1.0.0.0
EO
Host B
S6755
Host A
Network 2.0.0.0
todd.book Page 25 Tuesday, November 27, 2007 6:02 PM