# Configuring BGP-MPLS Applications

This chapter contains the following sections:

- Overview
- Platform Considerations
- References
- Transporting Packets Across an IP Backbone with MPLS
- Configuring IPv6 VPNs
- Intra-AS IPv6 VPNs
- Providing IPv4 VPN Services Across Multiple Autonomous Systems
- Providing IPv6 VPN Services Across Multiple Autonomous Systems
- Using Route Targets to Configure VPN Topologies
- Constraining Route Distribution with Route-Target Filtering
- Multicast Services over VPNs
- Configuring BGP VPN Services
- Providing Internet Access to and from VPNs
- Carrier-of-Carriers IPv4 VPNs
- Carrier-of-Carriers IPv6 VPNs
- Connecting IPv6 Islands Across IPv4 Clouds with BGP
- OSPF and BGP/MPLS VPNs
- Configuring VPLS
- Configuring L2VPNs