Cisco Systems Router 1800 Series User Manual

 
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Chapter 4      Configuring PPP over ATM with NAT
  Configure Network Address Translation
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Chipset Version: 0
Firmware Version: A388Modem Status: Data, Status...

 
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Chapter 4      Configuring PPP over ATM with NAT
  Configure Network Address Translation
CommandPurpose
Step 1ip nat pool name start-ip end-ip {netmask 
netmask | prefix-length prefix-length}
Example:
Router(config)# ip nat pool pool1 
192.168.1.0 192.168.2.0 netmask 0.0.0.255
Router(config)# 
Creates pool of global IP addresses for NAT. 
Step 2ip nat inside source {list access-list-number} 
{interface...

 
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Chapter 4      Configuring PPP over ATM with NAT
  Configuration Example
NoteIf you want to use NAT with a virtual-template interface, you must configure a loopback interface. See 
Chapter 1, “Basic Router Configuration,” for information on configuring the loopback interface.
For complete information on NAT commands, see the Cisco IOS Release 12.3 documentation set. For 
more general information on NAT...

 
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Chapter 4      Configuring PPP over ATM with NAT
  Configuration Example
NoteCommands marked by “(default)” are generated automatically when you run the show running-config 
command.
!
interface Vlan1 ip address 192.168.1.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly (default)!
interface ATM0
 no ip address ip nat outside
 ip virtual-reassembly
 no atm ilmi-keepalive pvc 8/35
  encapsulation...

CH A P T E R
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5
Configuring a LAN with DHCP and VLANs
The Cisco 1800 series integrated services fixed-configuration routers support clients on both physical 
LANs and virtual LANs (VLANs). The routers can use the Dynamic Host Configuration Protocol 
(DHCP) to enable automatic assignment of IP c onfigurations for nodes on these networks. Other 
interfaces and configurations of the VLANs are described in the 
“Switch Port Configurations” section 
on page 5-7....

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Chapter 5      Configuring a LAN with DHCP and VLANs
  Configure DHCP
 Configure VLANs
NoteThe procedures in this chapter assume you have already configured basic router features as well as 
PPPoE or PPPoA with NAT. If you have not performed these configurations tasks, see 
Chapter 1, “Basic 
Router Configuration,” Chapter 3, “Configuring PPP over Ethernet with NAT,” and...

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Chapter 5      Configuring a LAN with DHCP and VLANs
  Configure DHCP
Configuration Example
The following configuration example shows a portion of the configuration file for the DCHP 
configuration described in this chapter.
ip dhcp excluded-address 192.168.9.0
!ip dhcp pool dpool1
   import all
   network 10.10.0.0 255.255.255.0   default-router 10.10.10.10
   dns-server...

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Chapter 5      Configuring a LAN with DHCP and VLANs
  Configure DHCP
Verify Your DHCP Configuration
Use the following commands to view your DHCP configuration.
 show ip dhcp import—Displays the optional parameters imported into the DHCP server database.
 show ip dhcp pool—Displays information about the DHCP address pools.
 show ip dhcp server statistics—Displays the DHCP...

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Chapter 5      Configuring a LAN with DHCP and VLANs   Configure VLANs
Configure VLANs
Perform these steps to configure VLANs on your router, beginning in privileged EXEC mode:
CommandPurpose
Step 1vlan database
Example:
Router# vlan databaseRouter(vlan)# 
Enters VLAN configuration mode.
Step 2vlan vlan-id [ media type] [ name vlan-name]
Example:
Router(vlan)#  vlan 2 media...

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Chapter 5      Configuring a LAN with DHCP and VLANs
  Configure VLANs
    Translational Bridged VLAN: 1    Translational Bridged VLAN: 1003
  VLAN ISL Id: 1003    Name: token-ring-default
    Media Type: Token Ring
    VLAN 802.10 Id: 101003    State: Operational
    MTU: 1500
    Bridge Type: SRB    Ring Number: 0
    Bridge Number: 1
    Parent VLAN: 1005    Maximum ARE Hop...