HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual page 23

Creating Prefix Lists: Configuring Filters for Route Exchange . . . . 13-78
Naming the List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-80
Assigning the Entry an Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-80
Discarding or Allowing Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-80
Specifying the Network Address . . . . . . . . . . . . . . . . . . . . . . . . . 13-80
Specifying the Range of Prefix Lengths . . . . . . . . . . . . . . . . . . . 13-80
Applying Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-81
Example BGP Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-81
Example Prefix List Configuration . . . . . . . . . . . . . . . . . . . . . . . 13-85
Configuring Route Maps: Creating More Complex Policies
for Route Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-86
Creating a Route Map Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-87
Configuring a Community List . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-88
Configuring an AS Path List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-89
Defining the Routes that a Router Can Advertise . . . . . . . . . . . 13-89
Placing a Route in a Community: Requesting a Neighbor
to Advertise a Route to Certain Peers Only . . . . . . . . . . . . . . . . 13-94
Prepending Private AS Numbers for Load Balancing . . . . . . . . 13-96
Setting a Multi-Exit Discriminator Metric for
Load Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-98
Filtering Inbound Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-100
Applying Policies to Inbound Routes . . . . . . . . . . . . . . . . . . . . 13-102
Deleting Communities from a Route . . . . . . . . . . . . . . . . . . . . . 13-103
Applying a Route Map Entry to a BGP Neighbor . . . . . . . . . . . 13-104
Enabling Soft Reconfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-104
Prohibiting the Advertisement of Default Routes . . . . . . . . . . . . . . 13-104
Disabling IGP Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-105
Configuring Route Summarizations . . . . . . . . . . . . . . . . . . . . . . . . . 13-105
Setting Administrative Distance for BGP Routes . . . . . . . . . . . . . . 13-105
Altering BGP Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-106
Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-106
Example 1: Baseline BGP Configuration . . . . . . . . . . . . . . . . . 13-107
Example 2: Baseline BGP Configuration for a Router that
Runs an IGP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-109
Example 3: Configuring a Standard BGP Policy on a
Router That Receives Routes to Remote Private Sites . . . . . . 13-111
Example 4: Configuring BGP Policies for a Router That
Multihomes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-113
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