Technical Documentation

Layer 3 VPNs

Configuring Layer 3 VPNs

Introduction to Configuring Layer 3 VPNs

Configuring Routing Between PE and CE Routers in Layer 3 VPNs

Limiting the Number of Paths and Prefixes Accepted from CE Routers in Layer 3 VPNs

Configuring Layer 3 VPNs to Carry IPv6 Traffic

Configuring EBGP Multihop Sessions Between PE and CE Routers in Layer 3 VPNs

Configuring Layer 3 VPNs to Carry IBGP Traffic

Filtering Packets in Layer 3 VPNs Based on IP Headers

Applying Custom MPLS EXP Classifiers to Routing Instances in Layer 3 VPNs

Load Balancing and IP Header Filtering for Layer 3 VPNs

Configuring a Label Allocation and Substitution Policy for VPNs

Configuring Logical Units on the Loopback Interface for Routing Instances in Layer 3 VPNs

Configuring Multicast Layer 3 VPNs

Configuring Packet Forwarding for Layer 3 VPNs

Configuring GRE Tunnels for Layer 3 VPNs

Configuring an ES Tunnel Interface for Layer 3 VPNs

Configuring IPsec Tunnels Instead of MPLS LSPs Between PE Routers in Layer 3 VPNs

Configuring Protocol-Independent Load Balancing in Layer 3 VPNs

Configuring the Algorithm That Determines the Active Route to Evaluate AS Numbers in AS Paths for VPN Routes

Configuring Traffic Policing in Layer 3 VPNs

Accepting BGP Updates with Unique Inner VPN Labels in Layer 3 VPNs

Layer 3 VPN Internet Access Examples

Non-VRF Internet Access

Distributed Internet Access

Routing VPN and Internet Traffic Through Different Interfaces

Routing VPN and Outgoing Internet Traffic Through the Same Interface and Routing Return Internet Traffic Through a Different Interface

Routing VPN and Internet Traffic Through the Same Interface Bidirectionally (VPN Has Public Addresses)

Routing VPN and Internet Traffic Through the Same Interface Bidirectionally (VPN Has Private Addresses)

Routing Internet Traffic Through a Separate NAT Device

Centralized Internet Access

Published: 2010-07-16

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