Cisco Systems Router 1800 Series User Manual

 
8-3
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 8      Config uring a Simple Firewall
  Configure Access Lists
Configure Access Lists
Perform these steps to create access lists for use by the firewall, beginning in global configuration mode:
CommandPurpose
Step 1access-list access-list-number  {deny  | permit } 
protocol source source-wildcard  [operator  [port ]] 
destination
Example:
Router(config)#  access-list 103 permit host 
200.1.1.1 eq...

 
8-4
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 8      Configuring a Simple Firewall
  Apply Access Lists and Inspection Rules to Interfaces
Apply Access Lists and Insp ection Rules to Interfaces
Perform these steps to apply the ACLs and inspection rules to the network interfaces, beginning in global 
configuration mode:
CommandPurpose
Step 1interface type number
Example:
Router(config)#  interface vlan 1Router(config-if)# 
Enters interface...

 
8-5
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 8      Configuring a Simple Firewall
  Configuration Example
Configuration Example
A telecommuter is granted secure access to a corporate network, using IPSec tunneling. Security to the 
home network is accomplished through firewall inspection. The protocols that are allowed are all TCP, 
UDP, RTSP, H.323, NetShow, FTP, and SQLNet. There are no servers on the home network; therefore, 
no traffic is...

 
8-6
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 8      Configuring a Simple Firewall
  Configuration Example 

CH A P T E R
 
9-1
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
9
Configuring a Wireless LAN Connection
The Cisco 1800 series integrated services fixed-configuration routers support  a secure, affordable, and 
easy-to-use wireless LAN solution that combines  mobility and flexibility with the enterprise-class 
features required by networking professionals. With  a management system based on Cisco IOS software, 
the Cisco routers act as access points, and...

 
9-2
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 9      Configuring a Wireless LAN Connection
  Configure the Root Radio Station
Configuration Tasks
Perform the following tasks to configure this network scenario:
 Configure the Root Radio Station
 Configure Bridging on VLANs
 Configure Radio Station Subinterfaces
An example showing the results of these configuration tasks is shown in the section “Configuration 
Example.”
NoteThe procedures in...

 
9-3
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 9      Configuring a Wireless LAN Connection
  Configure the Root Radio Station
Step 3encryption method algorithm key
Example:
Router(config-if)# encryption vlan 1 mode 
ciphers tkip
Router(config-if)# 
Specifies the encryption method, algorithm, and 
key used to access the wireless interface.
The example uses the VLAN with optional 
encryption method of data ciphers.
Step 4ssid name 
Example:...

 
9-4
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 9      Configuring a Wireless LAN Connection
  Configure Bridging on VLANs
Configure Bridging on VLANs
Perform these steps to configure integrated routing and bridging on VLANs, beginning in global 
configuration mode:
Step 10power [client | local] [cck [number | maximum] | 
ofdm [number | maximum]]
Example:
Router(config-if)# power local cck 50Router(config-if)# power local ofdm 30...

 
9-5
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 9      Configuring a Wireless LAN Connection
  Configure Radio Station Subinterfaces
Repeat Step 2 through Step 6 above for each VLAN that requires a wireless interface.
Configure Radio Station Subinterfaces
Perform these steps to configure subinterfaces for each root station, beginning in global configuration 
mode:
Step 3bridge-group number
Example:
Router(config)# bridge-group 1Router(config)#...

 
9-6
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 9      Configuring a Wireless LAN Connection
  Configuration Example
Repeat these steps to configure more subinterfaces, as needed.
Configuration Example
The following configuration example shows a portion of the configuration file for the wireless LAN 
scenario described in the preceding sections.
!
bridge irb
!interface Dot11Radio0
 no ip address
 ! broadcast-key vlan 1 change 45
 !
 ! encryption...