Example: gtp tunnel

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
int lo0
 vrf for v1
 ipv4 addr 4.4.4.4 255.255.255.255
 ipv6 addr 4444::4 ffff::
 exit
ipv4 pool p4 2.2.2.1 0.0.0.1 254
ipv6 pool p6 2222::1111 ::1 254
int di1
 enc iponly
 vrf for v1
 ipv4 addr 2.2.2.0 255.255.255.255
 ipv4 pool p4
 ipv6 addr 2222::0 ffff::
 ipv6 pool p6
 exit
server gtp gtp
 clone di1
 vrf v1
 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::
 exit
int tun1
 tunnel vrf v1
 tunnel mode gtp
 tunnel source ethernet1
 tunnel destination 1.1.1.1
 vrf for v1
 ipv4 addr 3.3.3.3 0.0.0.0
 ipv6 addr 3333::3333 ::
 exit

r2 tping 100 60 4.4.4.4 vrf v1
r2 tping 100 5 4444::4 vrf v1

ContainerLabfreeRtr CLI

1. Install ContainerLab as described here
2. Fetch conn-gtp05 file
3. Launch ContainerLab conn-gtp05.yml topology:

   containerlab deploy --topo conn-gtp05.yml  

4. Destroy ContainerLab conn-gtp05.yml topology:

   containerlab destroy --topo conn-gtp05.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-gtp05.tst file here
3. Launch conn-gtp05.tst test:

   java -jar ../../rtr.jar test tester conn-gtp05 path ./ temp ./ wait

4. Destroy freeRtr conn-gtp05.tst test:

   Ctrl-C (In freeRtr test window)