#####Configs:
R4@M7i-2# show protocols bgp 
group ipv4-r1 {
    type internal;
    local-address 172.27.255.4;
    family inet {
        unicast {
            rib-group inet0->vrf;
        }
    }
    neighbor 172.27.255.1;
}
group vpnv4-r3 {
    type internal;
    local-address 172.27.255.4;
    family inet-vpn {
        unicast;
    }
    neighbor 172.27.255.3;
}

[edit]
R4@M7i-2# show routing-options rib-groups 
inet0->vrf {
    import-rib [ inet.0 Customer.inet.0 ];
}

[edit]
R4@M7i-2# 
R4@M7i-2# show routing-instances 
Customer {
    instance-type vrf;
    interface ge-1/3/0.42;
    route-distinguisher 172.27.255.4:100;
    vrf-target target:4:100;
    protocols {
        bgp {
            group R2-peer {
                neighbor 172.27.0.5 {
                    peer-as 1;
                }
            }
        }
    }
}

[edit]
R4@M7i-2# 

R1@M7i-1# show protocols bgp 
group ipv4-r4 {
    type internal;
    local-address 172.27.255.1;
    family inet {
        unicast;
    }
    export export-bgp-inet;
    neighbor 172.27.255.4;
}

[edit]
R1@M7i-1# show routing-options static 
route 8.8.8.8/32 discard;

[edit]
R1@M7i-1# 

R3@M7i-3# show protocols bgp 
group vpnv4-r1 {
    type internal;
    local-address 172.27.255.3;
    family inet-vpn {
        unicast;
    }
    neighbor 172.27.255.4;
}

[edit]
R3@M7i-3# show routing-instances    
Customer {
    instance-type vrf;
    route-distinguisher 172.27.255.3:100;
    vrf-target target:4:100;
}

[edit]
R3@M7i-3# 

###Show results:
R4@M7i-2# run show bgp summary 
Groups: 3 Peers: 3 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
inet.0                 1          1          0          0          0          0
bgp.l3vpn.0            0          0          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
172.27.0.5                1        157        155       0       2     1:09:09 Establ
  Customer.inet.0: 1/1/1/0
172.27.255.1              3        142        139       0       0     1:02:15 Establ
  inet.0: 1/1/1/0
172.27.255.3              3        165        175       0       0     1:12:52 Establ
  bgp.l3vpn.0: 0/0/0/0

[edit]
R4@M7i-2# run show route receive-protocol bgp 172.27.255.1 

inet.0: 32 destinations, 37 routes (30 active, 0 holddown, 2 hidden)
Restart Complete
  Prefix                  Nexthop              MED     Lclpref    AS path
* 8.8.8.8/32              172.27.255.1                 100        I

inet.3: 7 destinations, 11 routes (2 active, 0 holddown, 7 hidden)
Restart Complete

Customer.inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
  Prefix                  Nexthop              MED     Lclpref    AS path
* 8.8.8.8/32              172.27.255.1                 100        I

[edit]
R4@M7i-2# run show route 8.8.8.8/32 

inet.0: 32 destinations, 37 routes (30 active, 0 holddown, 2 hidden)
Restart Complete
+ = Active Route, - = Last Active, * = Both

8.8.8.8/32         *[BGP/170] 01:02:45, localpref 100, from 172.27.255.1
                      AS path: I
                    > to 172.27.0.10 via ge-1/3/0.41, label-switched-path r4-to-r1

Customer.inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

8.8.8.8/32         *[BGP/170] 01:01:00, localpref 100, from 172.27.255.1
                      AS path: I
                    > to 172.27.0.10 via ge-1/3/0.41, label-switched-path r4-to-r1

[edit]
R4@M7i-2#
R4@M7i-2# run show route advertising-protocol bgp 172.27.255.3 

Customer.inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
  Prefix                  Nexthop              MED     Lclpref    AS path
* 2.2.2.2/32              Self                         100        1 I
* 172.27.0.4/30           Self                         100        I

[edit]
R4@M7i-2# 



R3@M7i-3# run show route 8.8.8.8            

[edit]
R3@M7i-3#