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Example: bgp auto mesh tunnel

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r1

hostname r1
vrf def v1
 rd 1:1
 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 bgp4 1
 vrf v1
 no safe-ebgp
 address uni
 local-as 1
 router-id 4.4.4.1
 neigh 9.9.9.2 remote-as 2
 red conn
 automesh all
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 address uni
 local-as 1
 router-id 6.6.6.1
 neigh 9999::2 remote-as 2
 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
 ipv6 addr 9999::1 ffff::
 ipv4 access-group-in test4
 ipv6 access-group-in test6
 mpls enable
 mpls rsvp4
 mpls rsvp6
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 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 bgp4 1
 vrf v1
 no safe-ebgp
 address uni
 local-as 2
 router-id 4.4.4.2
 neigh 9.9.9.1 remote-as 1
 red conn
 automesh all
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 address uni
 local-as 2
 router-id 6.6.6.2
 neigh 9999::1 remote-as 1
 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
 ipv6 addr 9999::2 ffff::
 ipv4 access-group-in test4
 ipv6 access-group-in test6
 mpls enable
 mpls rsvp4
 mpls rsvp6
 exit

r1 tping 100 60 9.9.9.2 vrf v1
r1 tping 100 60 9999::2 vrf v1
r2 tping 100 60 9.9.9.1 vrf v1
r2 tping 100 60 9999::1 vrf v1
r1 tping 0 60 2.2.2.2 vrf v1
r1 tping 0 60 4321::2 vrf v1
r2 tping 0 60 2.2.2.1 vrf v1
r2 tping 0 60 4321::1 vrf v1
r1 output show ipv4 bgp 1 sum
r1 output show ipv6 bgp 1 sum
r1 output show ipv4 rsvp v1 sum
r1 output show ipv6 rsvp v1 sum
r1 output show ipv4 route v1
r1 output show ipv6 route v1
output ../binTmp/rout-bgp-te.html
<html><body bgcolor="#000000" text="#FFFFFF" link="#00FFFF" vlink="#00FFFF" alink="#00FFFF">
here are the ipv4 neighbors:
here are the ipv6 neighbors:
here is the ipv4 database:
here is the ipv6 database:
here are the ipv4 routes:
here are the ipv6 routes:
  1. Install ContainerLab as described here
  2. Fetch rout-bgp155 file
  3. Launch ContainerLab rout-bgp155.yml topology: 

   containerlab deploy --topo rout-bgp155.yml
4. Destroy ContainerLab rout-bgp155.yml topology: 

   containerlab destroy --topo rout-bgp155.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-bgp155.tst file here
  3. Launch rout-bgp155.tst test: 

   java -jar ../../rtr.jar test tester rout-bgp155 path ./ temp ./ wait
4. Destroy freeRtr rout-bgp155.tst test: 

   Ctrl-C (In freeRtr test window)