Example: relaying dns server

TopologyConfigurationsVerificationEmulation

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
server dns dns
 zone test.corp defttl 43200
 rr www.test.corp ip4a 1.1.1.1
 vrf v1
 exit
proxy-profile p1
 vrf v1
 source ethernet1
 exit
client proxy p1
client name-server 1234::2

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::
 exit
proxy-profile p1
 vrf v1
 source ethernet1
 exit
server dns dns
 resolv test.corp p1 1234::1
 vrf v1
 exit
client proxy p1
client name-server 1.1.1.1

r2 tping 100 15 1.1.1.1 vrf v1
r2 tping 100 15 1234::1 vrf v1
r2 tping 100 15 www.test.corp vrf v1
r1 tping 100 15 www.test.corp vrf v1

ContainerLabfreeRtr CLI

1. Install ContainerLab as described here
2. Fetch serv-dns03 file
3. Launch ContainerLab serv-dns03.yml topology:

   containerlab deploy --topo serv-dns03.yml  

4. Destroy ContainerLab serv-dns03.yml topology:

   containerlab destroy --topo serv-dns03.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 serv-dns03.tst file here
3. Launch serv-dns03.tst test:

   java -jar ../../rtr.jar test tester serv-dns03 path ./ temp ./ wait

4. Destroy freeRtr serv-dns03.tst test:

   Ctrl-C (In freeRtr test window)