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<CE1> system-view
[CE1] interface gigabitethernet 2/0/1
[CE1-GigabitEthernet2/0/1] ip address 100.1.1.1 24
[CE1-GigabitEthernet2/0/1] quit
[CE1] interface serial 2/1/0
[CE1-Serial2/1/0] ip address 1.1.1.2 24
[CE1-Serial2/1/0] quit
# Configure a default route to PE 1.
[CE1] ip route-static 0.0.0.0 0 1.1.1.1
2.
Configure PE 1:
# Create VPN instances vpn1 and vpn2 for VPN 1 and VPN 2, respectively, and configure
different RDs and route targets for the VPN instances.
<PE1> system-view
[PE1] ip vpn-instance vpn1
[PE1-vpn-instance-vpn1] route-distinguisher 100:1
[PE1-vpn-instance-vpn1] vpn-target 100:1 both
[PE1-vpn-instance-vpn1] quit
[PE1] ip vpn-instance vpn2
[PE1-vpn-instance-vpn2] route-distinguisher 100:2
[PE1-vpn-instance-vpn2] vpn-target 100:2 both
[PE1-vpn-instance-vpn2] quit
# Associate VPN instance vpn1 with Serial 2/1/1 (the interface connected to CE 1).
[PE1] interface serial 2/1/1
[PE1-Serial2/1/1] ip binding vpn-instance vpn1
[PE1-Serial2/1/1] ip address 1.1.1.1 255.255.255.0
[PE1-Serial2/1/1] quit
# Configure a static route for VPN 2 to reach Host A and redistribute the route to BGP. This
configuration ensures that packets from VPN 2 to Host A can be forwarded through the correct
route in the routing table of VPN instance vpn1.
[PE1] ip route-static vpn-instance vpn2 100.1.1.0 24 vpn-instance vpn1 1.1.1.2
[PE1] bgp 100
[PE1-bgp] ip vpn-instance vpn2
[PE1-bgp-vpn2] address-family ipv4
[PE1-bgp-ipv4-vpn2] import-route static
[PE1-bgp-ipv4-vpn2] quit
[PE1-bgp-vpn2] quit
[PE1-bgp] quit
# Configure PBR to route packets from Host A according to the routing tables of both VPN
instances vpn1 and vpn2.
[PE1] acl number 3001
[PE1-acl-adv-3001] rule 0 permit ip vpn-instance vpn1 source 100.1.1.2 0
[PE1-acl-adv-3001] quit
[PE1] policy-based-route policy1 permit node 10
[PE1-policy-based-route] if-match acl 3001
[PE1-policy-based-route] apply access-vpn vpn-instance vpn1 vpn2
[PE1-policy-based-route] quit
# Apply policy policy1 to Serial 2/1/1.
[PE1] interface serial 2/1/1
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