Skip to content

Example: isis auto mesh tunnel

Alt text

r1

hostname r1
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
access-list test4
 deny 1 any all any all
 permit all any all any all
 exit
access-list test6
 deny 58 any all any all
 permit all any all any all
 exit
prefix-list all
 sequence 10 permit 0.0.0.0/0 le 32
 sequence 20 permit ::/0 le 128
 exit
router isis4 1
 vrf v1
 net 48.4444.0000.1111.00
 red conn
 automesh all
 exit
router isis6 1
 vrf v1
 net 48.6666.0000.1111.00
 red conn
 automesh all
 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 ser1
 vrf for v1
 ipv4 addr 9.9.9.1 255.255.255.0
 router isis4 1 ena
 ipv4 access-group-in test4
 mpls enable
 mpls rsvp4
 exit
int ser2
 vrf for v1
 ipv6 addr 9999::1 ffff::
 router isis6 1 ena
 ipv6 access-group-in test6
 mpls enable
 mpls rsvp6
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
access-list test4
 deny 1 any all any all
 permit all any all any all
 exit
access-list test6
 deny 58 any all any all
 permit all any all any all
 exit
prefix-list all
 sequence 10 permit 0.0.0.0/0 le 32
 sequence 20 permit ::/0 le 128
 exit
router isis4 1
 vrf v1
 net 48.4444.0000.2222.00
 red conn
 automesh all
 exit
router isis6 1
 vrf v1
 net 48.6666.0000.2222.00
 red conn
 automesh all
 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 ser1
 vrf for v1
 ipv4 addr 9.9.9.2 255.255.255.0
 router isis4 1 ena
 ipv4 access-group-in test4
 mpls enable
 mpls rsvp4
 exit
int ser2
 vrf for v1
 ipv6 addr 9999::2 ffff::
 router isis6 1 ena
 ipv6 access-group-in test6
 mpls enable
 mpls rsvp6
 exit

r1 tping 100 20 9.9.9.2 vrf v1
r1 tping 100 20 9999::2 vrf v1
r2 tping 100 20 9.9.9.1 vrf v1
r2 tping 100 20 9999::1 vrf v1
r1 tping 0 20 2.2.2.2 vrf v1
r1 tping 0 20 4321::2 vrf v1
r2 tping 0 20 2.2.2.1 vrf v1
r2 tping 0 20 4321::1 vrf v1
r2 output show ipv4 isis 1 nei
r2 output show ipv6 isis 1 nei
r2 output show ipv4 isis 1 dat 2
r2 output show ipv6 isis 1 dat 2
r2 output show ipv4 isis 1 tre 2
r2 output show ipv6 isis 1 tre 2
r2 output show ipv4 route v1
r2 output show ipv6 route v1
  1. Install ContainerLab as described here
  2. Fetch rout-isis047 file
  3. Launch ContainerLab rout-isis047.yml topology: 

   containerlab deploy --topo rout-isis047.yml
4. Destroy ContainerLab rout-isis047.yml topology: 

   containerlab destroy --topo rout-isis047.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-isis047.tst file here
  3. Launch rout-isis047.tst test: 

   java -jar ../../rtr.jar test tester rout-isis047 path ./ temp ./ wait
4. Destroy freeRtr rout-isis047.tst test: 

   Ctrl-C (In freeRtr test window)