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Example: ospf asymmetric multi area

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r1

hostname r1
vrf def v1
 rd 1:1
 exit
router ospf4 1
 vrf v1
 router 4.4.4.1
 area 1 ena
 area 2 ena
 exit
router ospf6 1
 vrf v1
 router 6.6.6.1
 area 1 ena
 area 2 ena
 exit
int lo1
 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
 router ospf4 1 ena
 router ospf4 1 area 1
 router ospf6 1 ena
 router ospf6 1 area 1
 exit
int lo2
 vrf for v1
 ipv4 addr 2.2.2.11 255.255.255.255
 ipv6 addr 4321::11 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 router ospf4 1 ena
 router ospf4 1 area 2
 router ospf6 1 ena
 router ospf6 1 area 2
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.252
 ipv6 addr 1234:1::1 ffff:ffff::
 router ospf4 1 ena
 router ospf4 1 area 1 2
 router ospf6 1 ena
 router ospf6 1 area 1 2
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
router ospf4 1
 vrf v1
 router 4.4.4.2
 area 1 ena
 area 2 ena
 area 3 ena
 exit
router ospf6 1
 vrf v1
 router 6.6.6.2
 area 1 ena
 area 2 ena
 area 3 ena
 exit
int lo1
 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
 router ospf4 1 ena
 router ospf4 1 area 1
 router ospf6 1 ena
 router ospf6 1 area 1
 exit
int lo2
 vrf for v1
 ipv4 addr 2.2.2.22 255.255.255.255
 ipv6 addr 4321::22 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 router ospf4 1 ena
 router ospf4 1 area 1 2 3
 router ospf6 1 ena
 router ospf6 1 area 1 2 3
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.252
 ipv6 addr 1234:1::2 ffff:ffff::
 router ospf4 1 ena
 router ospf4 1 area 1 2 3
 router ospf6 1 ena
 router ospf6 1 area 1 2 3
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.1.5 255.255.255.252
 ipv6 addr 1234:2::1 ffff:ffff::
 router ospf4 1 ena
 router ospf4 1 area 1 2 3
 router ospf6 1 ena
 router ospf6 1 area 1 2 3
 exit

r3

hostname r3
vrf def v1
 rd 1:1
 exit
router ospf4 1
 vrf v1
 router 4.4.4.3
 area 1 ena
 area 3 ena
 exit
router ospf6 1
 vrf v1
 router 6.6.6.3
 area 1 ena
 area 3 ena
 exit
int lo1
 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
 router ospf4 1 ena
 router ospf4 1 area 1
 router ospf6 1 ena
 router ospf6 1 area 1
 exit
int lo2
 vrf for v1
 ipv4 addr 2.2.2.33 255.255.255.255
 ipv6 addr 4321::33 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 router ospf4 1 ena
 router ospf4 1 area 3
 router ospf6 1 ena
 router ospf6 1 area 3
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.6 255.255.255.252
 ipv6 addr 1234:2::2 ffff:ffff::
 router ospf4 1 ena
 router ospf4 1 area 1 3
 router ospf6 1 ena
 router ospf6 1 area 1 3
 exit

r1 tping 100 40 2.2.2.2 vrf v1
r1 tping 100 40 2.2.2.3 vrf v1
r1 tping 100 40 2.2.2.22 vrf v1
r1 tping 100 40 2.2.2.33 vrf v1
r1 tping 100 40 4321::2 vrf v1
r1 tping 100 40 4321::3 vrf v1
r1 tping 100 40 4321::22 vrf v1
r1 tping 100 40 4321::33 vrf v1
r2 tping 100 40 2.2.2.1 vrf v1
r2 tping 100 40 2.2.2.3 vrf v1
r2 tping 100 40 2.2.2.11 vrf v1
r2 tping 100 40 2.2.2.33 vrf v1
r2 tping 100 40 4321::1 vrf v1
r2 tping 100 40 4321::3 vrf v1
r2 tping 100 40 4321::11 vrf v1
r2 tping 100 40 4321::33 vrf v1
r3 tping 100 40 2.2.2.1 vrf v1
r3 tping 100 40 2.2.2.2 vrf v1
r3 tping 100 40 2.2.2.11 vrf v1
r3 tping 100 40 2.2.2.22 vrf v1
r3 tping 100 40 4321::1 vrf v1
r3 tping 100 40 4321::2 vrf v1
r3 tping 100 40 4321::11 vrf v1
r3 tping 100 40 4321::22 vrf v1
r2 output show ipv4 ospf 1 nei
r2 output show ipv6 ospf 1 nei
r2 output show ipv4 ospf 1 dat 0
r2 output show ipv6 ospf 1 dat 0
r2 output show ipv4 ospf 1 tre 0
r2 output show ipv6 ospf 1 tre 0
r2 output show ipv4 route v1
r2 output show ipv6 route v1
  1. Install ContainerLab as described here
  2. Fetch rout-ospf45 file
  3. Launch ContainerLab rout-ospf45.yml topology: 

   containerlab deploy --topo rout-ospf45.yml
4. Destroy ContainerLab rout-ospf45.yml topology: 

   containerlab destroy --topo rout-ospf45.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 rout-ospf45.tst file here
  3. Launch rout-ospf45.tst test: 

   java -jar ../../rtr.jar test tester rout-ospf45 path ./ temp ./ wait
4. Destroy freeRtr rout-ospf45.tst test: 

   Ctrl-C (In freeRtr test window)