Configuring Gre Tunnel Bgp/Mpls Vpn - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
[PE3-mpls] mpls ldp
[PE3-mpls-ldp] quit
[PE3] interface Serial 2/0/0
[PE3-Serial2/0/0] ip address 172.3.1.1 255.255.0.0
[PE3-Serial2/0/0] mpls ldp enable
[PE3-Serial2/0/0] quit
# Enable OSPF on the interface connecting PE3 and P and on the loopback interface,
and allow it to redistribute directly connected routes.
[PE3] ospf
[PE3] area 0
[PE3-ospf-area-0.0.0.0] network 172.3.0.0 0.0.255.255
[PE3-ospf-area-0.0.0.0] network 202.100.1.3 0.0.0.0
[PE3-ospf-area-0.0.0.0] import-route direct
# Set up MP-IBGP adjacency between PEs to exchange intra-PE VPN routing
information.
[PE1] bgp 100
[PE1-bgp] group 202 internal
[PE3-bgp] peer 202.100.1.1 group 202
[PE3-bgp] peer 202.100.1.1 connect-interface loopback0
[PE3-bgp] ipv4-family vpnv4
[PE3-bgp-af-vpn] peer 202 enable
[PE3-bgp-af-vpn] peer 202.100.1.1 group 202
[PE3-bgp-af-vpn] quit
5) Configure PE2 and PE4
The configuration of PE2 and PE4 is similar to that of PE1 and PE3. The details are
omitted here.

3.4.2 Configuring GRE Tunnel BGP/MPLS VPN

I. Network requirements
VPN-A includes CE-1 and CE3; VPN-B includes , CE-2 and , CE-3, and CE-4
3Com routers serve as PE, 3Com routers running MPLS serve as P, and CEs are
common middle or lower end routers.
II. Network diagram
Chapter 3 BGP/MPLS VPN Configuration
3Com Corporation
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