Cisco Router 800 Series Software Configuration Guide

 
7-21
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 7      Router Feature Configuration
Configuring IP EIGRP
For complete information on the IP EIGRP commands, refer to the 
Cisco IOS Release 12.0 documentation set. For more general information on 
EIGRP concepts, see Chapter 1, “Concepts.”
Configuration Example
The following configuration shows EIGRP routing protocol enabled in IP 
networks 10.0.0.0 and 172.17.0.0. The EIGRP autonomous system number is 
assigned as 100.
You do not...

 
Chapter 7      Router Feature Configuration
Configuring Addressing Parameters
7-22
Cisco 800 Series Software Configuration Guide
78-5372-06
Configuring Addressing Parameters
This section describes how to configure addressing using Network Address 
Translation (NAT) and Easy IP Phase 1 and 2.
Configuring NAT 
You can configure NAT for either static or dynamic address translations.
Follow the steps below to configure static or dynamic inside source translation, 
beginning in global configuration mode....

 
7-23
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 7      Router Feature Configuration
Configuring Addressing Parameters
NoteIf you want to use NAT with a virtual template interface, you must configure a 
loopback interface.
For complete information on the NAT commands, refer to the 
Cisco IOS Release 12.0 documentation set. For general information on NAT 
concepts, see Chapter 1, “Concepts.”
Configuration Example
The following configuration shows NAT configured for the Ethernet and...

 
Chapter 7      Router Feature Configuration
Configuring Addressing Parameters
7-24
Cisco 800 Series Software Configuration Guide
78-5372-06 ip nat inside
!
interface ATM0
ip address 200.200.100.1 255.255.255.0
no ip directed-broadcast (default)
ip nat outside
no atm ilmi-keepalive (default)
pvc 8/35 
encapsulation aal5snap
!
ip route 0.0.0.0.0.0.0.0 200.200.100.254
!
ip nat pool test 200.200.100.1 200.200.100.1 netmask 255.255.255.0
ip nat inside source list 101 pool test overload
ip classless...

 
7-25
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 7      Router Feature Configuration
Configuring Addressing Parameters
With PPP/IPCP, Cisco 800 series routers automatically negotiate a globally 
unique (registered or public) IP address for the interface from the ISP route.
Follow the steps below to configure Easy IP (Phase 1), beginning in global 
configuration mode.
Command Task
Step 1access-list access-list-number permit source 
[source-wildcard] Define a standard access list...

 
Chapter 7      Router Feature Configuration
Configuring Addressing Parameters
7-26
Cisco 800 Series Software Configuration Guide
78-5372-06
For complete information on the Easy IP commands, refer to the Cisco IOS 
Release 12.0 documentation set. For general information on Easy IP (Phase 1) 
concepts, see Chapter 1, “Concepts.” 
Configuring Easy IP (Phase 2) 
This section explains how to configure a Cisco 800 series router as a DHCP 
server.
The Easy IP (Phase 2) feature combines DHCP server and relay....

 
7-27
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 7      Router Feature Configuration
Configuring DHCP
Figure 7-1 Easy IP (Phase 2)–DHCP Server and Relay
Configuring DHCP
The following sections describe how to configure the router as a DHCP client, 
server, or relay.
Configuring DHCP Client Support
Follow these steps to configure the router for DHCP client support:
Step 1Configure the BVI interface by entering the ip address dhcp client-id Ethernet 
0 command. 
Cisco 827 Cisco 3600...

 
Chapter 7      Router Feature Configuration
Configuring DHCP
7-28
Cisco 800 Series Software Configuration Guide
78-5372-06
Specifying the value client-id ethernet0 means that the MAC address of the 
Ethernet interface is used as the client ID when the DHCP request is sent. 
Otherwise, the MAC address of the BVI interface is used as the client ID.
Step 2Configure NAT:
a.Configure the BVI interface by entering the ip nat outside command.
b.Configure the Ethernet interface by entering the ip nat inside...

 
7-29
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 7      Router Feature Configuration
Configuring DHCP
default-router 10.10.10.1 
import all
! 
bridge irb
interface Ethernet0
ip address 10.10.10.1 255.255.255.0
no ip directed-broadcast
ip nat inside
!
interface ATM0
no ip address
no ip directed-broadcast
no atm ilmi-keepalive
bundle-enable
hold-queue 208 in
!
interface ATM0.1 point-to-point
no ip directed-broadcast
pvc 1/100 
encapsulation aal5snap
!
bridge-group 1
!
interface...

 
Chapter 7      Router Feature Configuration
Configuring DHCP
7-30
Cisco 800 Series Software Configuration Guide
78-5372-06 !
voice-port 2
timing hookflash-in 0
!
voice-port 3
timing hookflash-in 0
!
voice-port 4
timing hookflash-in 0
!
!
line con 0
exec-timeout 0 0
transport input none
stopbits 1
line vty 0 4
password lab
login    
!
scheduler max-task-time 5000
end
Configuring DHCP Server
Follow the steps below to configure the router as a DHCP server, beginning in 
global configuration mode.
Command...