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Example: ospf dynamic icmp cost

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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 0 ena
 red conn
 exit
router ospf6 1
 vrf v1
 router 6.6.6.1
 area 0 ena
 red conn
 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
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234::1 ffff::
 router ospf4 1 ena
 router ospf4 1 cost 100
 router ospf6 1 ena
 router ospf6 1 cost 100
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.2.1 255.255.255.0
 ipv6 addr 1235::1 ffff::
 router ospf4 1 ena
 router ospf4 1 cost 1
 router ospf6 1 ena
 router ospf6 1 cost 1
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
router ospf4 1
 vrf v1
 router 4.4.4.2
 area 0 ena
 red conn
 exit
router ospf6 1
 vrf v1
 router 6.6.6.2
 area 0 ena
 red conn
 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
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 ipv6 addr 1234::2 ffff::
 router ospf4 1 ena
 router ospf4 1 cost 2
 router ospf4 1 dynamic-met mod icm
 router ospf6 1 ena
 router ospf6 1 cost 2
 router ospf6 1 dynamic-met mod icm
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.2.2 255.255.255.0
 ipv6 addr 1235::2 ffff::
 router ospf4 1 ena
 router ospf4 1 cost 200
 router ospf4 1 dynamic-met mod icm
 router ospf6 1 ena
 router ospf6 1 cost 200
 router ospf6 1 dynamic-met mod icm
 exit

r1 tping 100 20 2.2.2.2 vrf v1 sou lo1
r2 tping 100 20 2.2.2.1 vrf v1 sou lo1
r1 tping 100 20 4321::2 vrf v1 sou lo1
r2 tping 100 20 4321::1 vrf v1 sou lo1
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-ospf55 file
  3. Launch ContainerLab rout-ospf55.yml topology: 

   containerlab deploy --topo rout-ospf55.yml
4. Destroy ContainerLab rout-ospf55.yml topology: 

   containerlab destroy --topo rout-ospf55.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-ospf55.tst file here
  3. Launch rout-ospf55.tst test: 

   java -jar ../../rtr.jar test tester rout-ospf55 path ./ temp ./ wait
4. Destroy freeRtr rout-ospf55.tst test: 

   Ctrl-C (In freeRtr test window)