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Example: ingress fragment matching access list

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r1

hostname r1
vrf def v1
 rd 1:1
 exit
access-list test4
 deny all any all any all frag
 permit all any all any all
 exit
access-list test6
 deny all any all any all frag
 permit all any all any all
 exit
int eth1
 mtu 1500
 enforce-mtu both
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234::1 ffff::
 ipv4 reassembly 16
 ipv4 fragmentation 1400
 ipv6 reassembly 16
 ipv6 fragmentation 1400
 ipv4 access-group-in test4
 ipv6 access-group-in test6
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
int eth1
 mtu 1500
 enforce-mtu both
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 ipv6 addr 1234::2 ffff::
 ipv4 reassembly 16
 ipv4 fragmentation 1400
 ipv6 reassembly 16
 ipv6 fragmentation 1400
 exit

r1 tping 100 15 1.1.1.2 vrf v1 siz 222
r2 tping 100 15 1.1.1.1 vrf v1 siz 222
r1 tping 100 15 1234::2 vrf v1 siz 222
r2 tping 100 15 1234::1 vrf v1 siz 222
r1 tping 0 15 1.1.1.2 vrf v1 siz 2222
r2 tping 0 15 1.1.1.1 vrf v1 siz 2222
r1 tping 0 15 1234::2 vrf v1 siz 2222
r2 tping 0 15 1234::1 vrf v1 siz 2222
  1. Install ContainerLab as described here
  2. Fetch crypt-acl78 file
  3. Launch ContainerLab crypt-acl78.yml topology: 

   containerlab deploy --topo crypt-acl78.yml
4. Destroy ContainerLab crypt-acl78.yml topology: 

   containerlab destroy --topo crypt-acl78.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 crypt-acl78.tst file here
  3. Launch crypt-acl78.tst test: 

   java -jar ../../rtr.jar test tester crypt-acl78 path ./ temp ./ wait
4. Destroy freeRtr crypt-acl78.tst test: 

   Ctrl-C (In freeRtr test window)