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Example: tunnel interface with llcudp

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r1

hostname r1
vrf def v1
 rd 1:1
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234::1 ffff::
 exit
int tun1
 tun vrf v1
 tun sou eth1
 tun dest 1.1.1.2
 tun key 1234
 tun mod llcudp
 vrf for v1
 ipv4 addr 2.2.2.1 255.255.255.0
 ipv6 addr 4321::1 ffff::
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 ipv6 addr 1234::2 ffff:ffff::
 exit
int tun1
 tun vrf v1
 tun sou eth1
 tun dest 1.1.1.1
 tun key 1234
 tun mod llcudp
 vrf for v1
 ipv4 addr 2.2.2.2 255.255.255.0
 ipv6 addr 4321::2 ffff::
 exit

r1 tping 100 10 1.1.1.2 vrf v1
r2 tping 100 10 1.1.1.1 vrf v1
r1 tping 100 10 2.2.2.2 vrf v1
r1 tping 100 10 4321::2 vrf v1
r2 tping 100 10 2.2.2.1 vrf v1
r2 tping 100 10 4321::1 vrf v1
  1. Install ContainerLab as described here
  2. Fetch conn-llcudp13 file
  3. Launch ContainerLab conn-llcudp13.yml topology: 

   containerlab deploy --topo conn-llcudp13.yml
4. Destroy ContainerLab conn-llcudp13.yml topology: 

   containerlab destroy --topo conn-llcudp13.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 conn-llcudp13.tst file here
  3. Launch conn-llcudp13.tst test: 

   java -jar ../../rtr.jar test tester conn-llcudp13 path ./ temp ./ wait
4. Destroy freeRtr conn-llcudp13.tst test: 

   Ctrl-C (In freeRtr test window)