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Example: mp2mp ldp tunnel mid+head

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r1

hostname r1
vrf def v1
 rd 1:1
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.1 255.255.255.255
 ipv6 addr 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234:1::1 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
ipv4 route v1 0.0.0.0 0.0.0.0 1.1.1.2
ipv6 route v1 :: :: 1234:1::2
access-list test4
 permit all 2.2.2.1 255.255.255.255 all any all
 deny all any all any all
 exit
access-list test6
 permit all 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff all any all
 deny all any all any all
 exit
int tun1
 tun sou lo0
 tun dest 2.2.2.2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv4 addr 3.3.3.1 255.255.255.0
 ipv4 access-group-out test4
 no ipv4 unreachables
 exit
int tun2
 tun sou lo0
 tun dest 4321::2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv6 addr 3333::1 ffff:ffff::
 ipv6 access-group-out test6
 no ipv6 unreachables
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.2 255.255.255.255
 ipv6 addr 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 ipv6 addr 1234:1::2 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.2.1 255.255.255.0
 ipv6 addr 1234:2::1 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
int eth3
 vrf for v1
 ipv4 addr 1.1.3.1 255.255.255.0
 ipv6 addr 1234:3::1 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
ipv4 route v1 2.2.2.1 255.255.255.255 1.1.1.1
ipv4 route v1 2.2.2.3 255.255.255.255 1.1.2.2
ipv4 route v1 2.2.2.4 255.255.255.255 1.1.3.2
ipv6 route v1 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::1
ipv6 route v1 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:2::2
ipv6 route v1 4321::4 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:3::2
access-list test4
 permit all 2.2.2.2 255.255.255.255 all any all
 deny all any all any all
 exit
access-list test6
 permit all 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff all any all
 deny all any all any all
 exit
int tun1
 tun sou lo0
 tun dest 2.2.2.2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv4 addr 3.3.3.2 255.255.255.0
 ipv4 access-group-out test4
 no ipv4 unreachables
 exit
int tun2
 tun sou lo0
 tun dest 4321::2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv6 addr 3333::2 ffff:ffff::
 ipv6 access-group-out test6
 no ipv6 unreachables
 exit

r3

hostname r3
vrf def v1
 rd 1:1
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.3 255.255.255.255
 ipv6 addr 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.2.2 255.255.255.0
 ipv6 addr 1234:2::2 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
ipv4 route v1 0.0.0.0 0.0.0.0 1.1.2.1
ipv6 route v1 :: :: 1234:2::1
access-list test4
 permit all 2.2.2.3 255.255.255.255 all any all
 deny all any all any all
 exit
access-list test6
 permit all 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff all any all
 deny all any all any all
 exit
int tun1
 tun sou lo0
 tun dest 2.2.2.2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv4 addr 3.3.3.3 255.255.255.0
 ipv4 access-group-out test4
 no ipv4 unreachables
 exit
int tun2
 tun sou lo0
 tun dest 4321::2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv6 addr 3333::3 ffff:ffff::
 ipv6 access-group-out test6
 no ipv6 unreachables
 exit

r4

hostname r4
vrf def v1
 rd 1:1
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.4 255.255.255.255
 ipv6 addr 4321::4 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.3.2 255.255.255.0
 ipv6 addr 1234:3::2 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
ipv4 route v1 0.0.0.0 0.0.0.0 1.1.3.1
ipv6 route v1 :: :: 1234:3::1
access-list test4
 permit all 2.2.2.4 255.255.255.255 all any all
 deny all any all any all
 exit
access-list test6
 permit all 4321::4 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff all any all
 deny all any all any all
 exit
int tun1
 tun sou lo0
 tun dest 2.2.2.2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv4 addr 3.3.3.4 255.255.255.0
 ipv4 access-group-out test4
 no ipv4 unreachables
 exit
int tun2
 tun sou lo0
 tun dest 4321::2
 tun vrf v1
 tun key 1234
 tun mod mp2mpldp
 vrf for v1
 ipv6 addr 3333::4 ffff:ffff::
 ipv6 access-group-out test6
 no ipv6 unreachables
 exit

r1 tping 100 10 2.2.2.2 vrf v1 sou lo0
r1 tping 100 10 2.2.2.3 vrf v1 sou lo0
r1 tping 100 10 2.2.2.4 vrf v1 sou lo0
r1 tping 100 10 4321::2 vrf v1 sou lo0
r1 tping 100 10 4321::3 vrf v1 sou lo0
r1 tping 100 10 4321::4 vrf v1 sou lo0
r2 tping 100 10 2.2.2.1 vrf v1 sou lo0
r2 tping 100 10 2.2.2.3 vrf v1 sou lo0
r2 tping 100 10 2.2.2.4 vrf v1 sou lo0
r2 tping 100 10 4321::1 vrf v1 sou lo0
r2 tping 100 10 4321::3 vrf v1 sou lo0
r2 tping 100 10 4321::4 vrf v1 sou lo0
r3 tping 100 10 2.2.2.1 vrf v1 sou lo0
r3 tping 100 10 2.2.2.2 vrf v1 sou lo0
r3 tping 100 10 2.2.2.4 vrf v1 sou lo0
r3 tping 100 10 4321::1 vrf v1 sou lo0
r3 tping 100 10 4321::2 vrf v1 sou lo0
r3 tping 100 10 4321::4 vrf v1 sou lo0
r4 tping 100 10 2.2.2.1 vrf v1 sou lo0
r4 tping 100 10 2.2.2.2 vrf v1 sou lo0
r4 tping 100 10 2.2.2.3 vrf v1 sou lo0
r4 tping 100 10 4321::1 vrf v1 sou lo0
r4 tping 100 10 4321::2 vrf v1 sou lo0
r4 tping 100 10 4321::3 vrf v1 sou lo0
r1 tping 100 10 3.3.3.2 vrf v1 sou lo0
r1 tping 100 10 3.3.3.3 vrf v1 sou lo0
r1 tping 100 10 3.3.3.4 vrf v1 sou lo0
r1 tping 100 10 3333::2 vrf v1 sou lo0
r1 tping 100 10 3333::3 vrf v1 sou lo0
r1 tping 100 10 3333::4 vrf v1 sou lo0
r2 tping 100 10 3.3.3.1 vrf v1 sou lo0
r2 tping 100 10 3.3.3.3 vrf v1 sou lo0
r2 tping 100 10 3.3.3.4 vrf v1 sou lo0
r2 tping 100 10 3333::1 vrf v1 sou lo0
r2 tping 100 10 3333::3 vrf v1 sou lo0
r2 tping 100 10 3333::4 vrf v1 sou lo0
r3 tping 100 10 3.3.3.1 vrf v1 sou lo0
r3 tping 100 10 3.3.3.2 vrf v1 sou lo0
r3 tping 100 10 3.3.3.4 vrf v1 sou lo0
r3 tping 100 10 3333::1 vrf v1 sou lo0
r3 tping 100 10 3333::2 vrf v1 sou lo0
r3 tping 100 10 3333::4 vrf v1 sou lo0
r4 tping 100 10 3.3.3.1 vrf v1 sou lo0
r4 tping 100 10 3.3.3.2 vrf v1 sou lo0
r4 tping 100 10 3.3.3.3 vrf v1 sou lo0
r4 tping 100 10 3333::1 vrf v1 sou lo0
r4 tping 100 10 3333::2 vrf v1 sou lo0
r4 tping 100 10 3333::3 vrf v1 sou lo0
  1. Install ContainerLab as described here
  2. Fetch mpls-ldp16 file
  3. Launch ContainerLab mpls-ldp16.yml topology: 

   containerlab deploy --topo mpls-ldp16.yml
4. Destroy ContainerLab mpls-ldp16.yml topology: 

   containerlab destroy --topo mpls-ldp16.yml
5. Copy-paste configuration for each node in the lab topology

  1. Fetch or compile freeRtr rtr.jar file.
    You can grab it here
  2. Fetch mpls-ldp16.tst file here
  3. Launch mpls-ldp16.tst test: 

   java -jar ../../rtr.jar test tester mpls-ldp16 path ./ temp ./ wait
4. Destroy freeRtr mpls-ldp16.tst test: 

   Ctrl-C (In freeRtr test window)