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Cisco 850 Series and Cisco 870 Series Access Routers Hardware Installation Guide
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Chapter 4 Router Cabling Procedures
Connecting a Broadband Modem
Connecting a Broadband Modem
This section applies only to Cisco 851 and Cisco 871 routers. You can connect to the Internet by
connecting a broadband modem. To connect to an installed DSL, cable, or long-reach Ethernet modem,
follow the steps given after
Figure 4-8
, which shows this connection.
Figure 4-8
Connecting to a Broadband Modem
Perform the following steps to connect the router to an installed DSL, cable, or long-reach Ethernet
modem:
Step 1
Connect one end of the yellow cable to the Ethernet WAN FE4 port.
Step 2
Connect the other end of cable to an available port on the modem.
Step 3
Follow the instructions provided with your broadband modem to determine which port on the modem to
connect to.
Step 4
Turn on the broadband modem if it is not already turned on.
Note
It is recommended that you use the Cisco Router and Security Device Manager (SDM) application to
configure the Internet connection settings. See the
Cisco Router and Security Device Manager (SDM)
Quick Start Guide
for more information.
1
Ethernet WAN port on the router
2
Available port on the modem
LEFT
RIGHT / PRIMARY
LAN
Cisco 871W
CONSOLE
AUX
RESET
+5,+12 VDC
1
0
WAN
FE4
FE0
FE1
FE2
FE3
WA
N
AC
TIV
IT
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ET
HE
RN
ET
PO
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