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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Chapter 3 Installing the Router
Configuration Changes
• Protocols to be configured
To obtain this information, consult your network administrator. For additional
interface configuration information for the RP and each of the line cards installed
in your router, refer to the configuration note that shipped with each card.
GRP Ethernet Interfaces
The RJ-45 and MII receptacles on the faceplate of the GRP are IEEE
802.3u-compliant interfaces. These IEEE interfaces provide connectivity to
Ethernet networks. You can use either interface, but not both at the same time.
The following configuration dialog example shows the system being configured
for an Ethernet interface that will use the IP network layer protocol. (The Ethernet
interface does not support external routing functions.) The IP address and subnet
mask value below are examples. The actual IP address and subnet mask value
would be different.
Configuring interface Ethernet0:
Is this interface in use?: yes
Configure IP on this interface?: yes
IP address for this interface: 3.3.1.1
Number of bits in subnet field: 8
Class A network is 3.0.0.0, 8 subnet bits; mask is 255.888.0.0
Configure CLNS on this interface?: yes
PRP Ethernet Interfaces
The IEEE 802.3 Ethernet interfaces on the PRP allow connections to external
Ethernet networks and can transmit data rates of 10 Mbps and 100 Mbps. The
transmission speed of the Ethernet ports is auto-sensing by default and is user
configurable.
Caution The Ethernet ports are primarily used as Telnet ports into the router, or for booting
or accessing Cisco IOS software images over a network to which an Ethernet port
is directly connected. Cisco Express Forwarding (CEF) functions are switched off
by default for security reasons. Cisco strongly cautions you to consider the
security implications of switching on CEF routing functions on these ports.