Specifications
Table Of Contents
- Contents
- Preface
- Getting Started
- Basic Router Configuration
- Interface Port Labels
- Viewing the Default Configuration
- Information Needed for Configuration
- Configuring Basic Parameters
- Configuring Static Routes
- Configuring Dynamic Routes
- Configuring Enhanced IGRP
- Basic Router Configuration
- Configuring Your Router for Ethernet and DSL Access
- Sample Network Deployments
- Configuring PPP over Ethernet with NAT
- Configuring PPP over ATM with NAT
- Configuring a LAN with DHCP and VLANs
- Configuring a VPN Using Easy VPN and an IPSec Tunnel
- Configure the IKE Policy
- Configure Group Policy Information
- Apply Mode Configuration to the Crypto Map
- Enable Policy Lookup
- Configure IPSec Transforms and Protocols
- Configure the IPSec Crypto Method and Parameters
- Apply the Crypto Map to the Physical Interface
- Create an Easy VPN Remote Configuration
- Verifying Your Easy VPN Configuration
- Configuration Example
- Configuring VPNs Using an IPSec Tunnel and Generic Routing Encapsulation
- Configuring a Simple Firewall
- Configuring a Wireless LAN Connection
- Sample Configuration
- Configuring Additional Features and Troubleshooting
- Additional Configuration Options
- Configuring Security Features
- Configuring Dial Backup and Remote Management
- Troubleshooting
- Reference Information
- Cisco IOS Software Basic Skills
- Concepts
- ROM Monitor
- Common Port Assignments

1-4
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 1 Basic Router Configuration
Information Needed for Configuration
interface FastEthernet8
no ip address
shutdown
!
interface FastEthernet9
no ip address
shutdown
!
interface Vlan1
no ip address
!
ip classless
!
no ip http server
no ip http secure-server
!
control-plane
!
line con 0
line aux 0
line vty 0 4
!
no scheduler allocate
end
Information Needed for Configuration
You need to gather some or all of the following information, depending on your planned network
scenario, prior to configuring your network
• If you are setting up an Internet connection, gather the following information:
–
Point-to-Point Protocol (PPP) client name that is assigned as your login name
–
PPP authentication type: Challenge Handshake Authentication Protocol (CHAP) or Password
Authentication Protocol (PAP)
–
PPP password to access your Internet service provider (ISP) account
–
DNS server IP address and default gateways
• If you are setting up a connection to a corporate network, you and the network administrator must
generate and share the following information for the WAN interfaces of the routers:
–
PPP authentication type: CHAP or PAP
–
PPP client name to access the router
–
PPP password to access the router
• If you are setting up IP routing:
–
Generate the addressing scheme for your IP network.
–
Determine the IP routing parameter information, including IP address, and ATM permanent
virtual circuits (PVCs). These PVC parameters are typically virtual path identifier (VPI), virtual
circuit identifier (VCI), and traffic shaping parameters.
–
Determine the number of PVCs that your service provider has given you, along with their VPIs
and VCIs.
–
For each PVC determine the type of AAL5 encapsulation supported. It can be one of the
following: