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Example: monitor session over tunnel

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r1

hostname r1
vrf def v1
 rd 1:1
 exit
proxy-profile p1
 vrf v1
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234::1 ffff::
 exit
bridge 1
 mac-learn
 exit
vpdn er
 bridge-group 1
 proxy p1
 target 1.1.1.2
 vcid 123
 protocol erspan
 exit
int bvi1
 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 1.1.1.5 255.255.255.0
 ipv6 addr 1234::5 ffff::
 exit
ipv4 route v1 1.1.1.1 255.255.255.252 1.1.1.6
ipv6 route v1 1234::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc 1234::6

r3

hostname r3
vrf def v1
 rd 1:1
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.252
 ipv6 addr 1234::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc
 ipv4 proxy-remote
 ipv6 proxy-remote
 exit
int tun1
 tun sou eth1
 tun dest 1.1.1.1
 tun vrf v1
 tun key 123
 tun mod erspan
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.1.6 255.255.255.252
 ipv6 addr 1234::6 ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc
 monitor-dir rx
 monitor-sess tun1
 exit

r3 tping 100 5 1.1.1.2 vrf v1
r3 tping 100 5 1234::2 vrf v1
r3 tping 100 5 1.1.1.6 vrf v1
r3 tping 100 5 1234::6 vrf v1
r3 tping 100 5 1.1.1.1 vrf v1
r3 tping 100 5 1234::1 vrf v1
r3 tping 100 5 1.1.1.5 vrf v1
r3 tping 100 5 1234::5 vrf v1
r1 tping 100 5 1.1.1.2 vrf v1 multi
r1 tping 100 5 1234::2 vrf v1 multi
r1 tping 100 5 1.1.1.6 vrf v1 multi
r1 tping 100 5 1234::6 vrf v1 multi
r1 tping 100 5 1.1.1.1 vrf v1 multi
r1 tping 100 5 1234::1 vrf v1 multi
r1 tping 200 5 1.1.1.5 vrf v1 multi
r1 tping 200 5 1234::5 vrf v1 multi
r2 tping 200 5 1.1.1.2 vrf v1 multi
r2 tping 200 5 1234::2 vrf v1 multi
r2 tping 200 5 1.1.1.6 vrf v1 multi
r2 tping 200 5 1234::6 vrf v1 multi
r2 tping 200 5 1.1.1.1 vrf v1 multi
r2 tping 200 5 1234::1 vrf v1 multi
r2 tping 100 5 1.1.1.5 vrf v1 multi
r2 tping 100 5 1234::5 vrf v1 multi
  1. Install ContainerLab as described here
  2. Fetch conn-eth25 file
  3. Launch ContainerLab conn-eth25.yml topology: 

   containerlab deploy --topo conn-eth25.yml
4. Destroy ContainerLab conn-eth25.yml topology: 

   containerlab destroy --topo conn-eth25.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-eth25.tst file here
  3. Launch conn-eth25.tst test: 

   java -jar ../../rtr.jar test tester conn-eth25 path ./ temp ./ wait
4. Destroy freeRtr conn-eth25.tst test: 

   Ctrl-C (In freeRtr test window)