Configuring Mpls L3Vpn Over A Gre Tunnel - HP HPE FlexNetwork MSR Router Series Configuration Manual

Destination/Mask
0.0.0.0/32
10.1.1.0/24
10.1.1.0/32
10.1.1.2/32
10.1.1.255/32
10.3.1.0/24
127.0.0.0/8
127.0.0.0/32
127.0.0.1/32
127.255.255.255/32
224.0.0.0/4
224.0.0.0/24
255.255.255.255/32
The output shows that PE 1 has a route to the remote CE. Output on PE 2 is similar.
# Verify that CEs of the same VPN can ping each other, whereas those of different VPNs cannot. For
example, CE 1 can ping CE 3 (10.3.1.1), but it cannot ping CE 4 (10.4.1.1). (Details not shown.)

Configuring MPLS L3VPN over a GRE tunnel

Network requirements
CE 1 and CE 2 belong to VPN 1. The PEs support MPLS. The P router does not support MPLS and
provides only IP functions.
On the backbone, use a GRE tunnel to encapsulate and forward VPN packets to implement MPLS
L3VPN.
Configure tunnel policies on the PEs, and specify the tunnel type for VPN traffic as GRE.
Figure 71 Network diagram
Loop0
PE 1
GE2/0/1
GE2/0/1
CE 1
VPN 1
AS 65410
Proto Pre
Direct 0
Direct 0
Direct 0
Direct 0
Direct 0
BGP 255
Direct 0
Direct 0
Direct 0
Direct 0
Direct 0
Direct 0
Direct 0
POS2/2/0 POS2/2/1
P
POS2/2/1
GRE tunnel
Tunnel0
AS 100
Cost NextHop
0 127.0.0.1
0 10.1.1.2
0 10.1.1.2
0 127.0.0.1
0 10.1.1.2
0 3.3.3.9
0 127.0.0.1
0 127.0.0.1
0 127.0.0.1
0 127.0.0.1
0 0.0.0.0
0 0.0.0.0
0 127.0.0.1
Loop0
POS2/2/0
PE 2
Tunnel0
GE2/0/1
GE2/0/1
CE 2
VPN 1
AS 65420
247
Interface
InLoop0
GE2/0/1
GE2/0/1
InLoop0
GE2/0/1
POS2/2/0
InLoop0
InLoop0
InLoop0
InLoop0
NULL0
NULL0
InLoop0