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
5-10
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-03
Chapter 5 Configuring a LAN with DHCP and VLANs
Switch Port Configurations
Note Per-Port enabling and disabling of unknown multicast and unicast packets is not supported on the Cisco
1800 (Fixed) configuration router.
Per-Port Storm Control
You can use these per-port storm control techniques to block the forwarding of unnecessary, flooded
traffic.
Fallback Bridging
With Fallback Bridging, the switch bridges together two or more VLANs or routed ports, essentially
connecting multiple VLANs within one bridge domain.
To configure Fallback Bridging for a set of SVIs, the SVIs must be assigned to bridge groups. All bridges
in the same group belong to the same bridge domain. Each SVI can be assigned to only one bridge group.
Separate Voice and Data Subnets
For ease of network administration and increased scalability, network managers can configure the switch
ports to support Cisco IP phones such that the voice and data traffic reside on separate subnets.
IGMP Snooping
By default, IGMP Snooping is globally enabled on the switch ports. When globally enabled or disabled,
it is also enabled or disabled on all VLAN interfaces. It can be enabled and disabled on a per-VLAN
basis.
Note All of the procedures for configuring the switch ports, including configuration examples and information
on the features and interfaces are in the
Cisco HWIC-4ESW and HWIC-9ESW EtherSwitch Interface
Cards document on Cisco.com. See this document to configure the switch ports.