Check Vti To Global Ipsec

This scenario shows how to configure and route traffic via one VTI (Virtual Tunnel Interface) device. The other end-point does not use VTI devices, but a global IPSec policy.

../../../_images/vtiglobal.svg

Test VTI To Global IPSec

Description

A tunnel is configured between DUT0 and DUT1. On the one hand, in DUT0, a vti interface is configured to encapsulate traffic. On the other hand, in DUT1, an IPSec policy with global selectors is configured.

Scenario

Step 1: Set the following configuration in DUT0:

set vpn ipsec auth-profile AUTH-SA local auth pre-shared-secret test
set vpn ipsec esp-group CHILD-SA proposal 1 encryption aes256gcm128
set vpn ipsec esp-group CHILD-SA proposal 1 pfs dh-group19
set vpn ipsec ike-group IKE-SA key-exchange ikev2
set vpn ipsec ike-group IKE-SA proposal 1 dh-group 19
set vpn ipsec ike-group IKE-SA proposal 1 encryption aes256gcm128
set vpn ipsec ike-group IKE-SA proposal 1 hash sha256
set vpn ipsec site-to-site peer PEER default-esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER auth-profile AUTH-SA
set vpn ipsec site-to-site peer PEER ike-group IKE-SA
set vpn ipsec site-to-site peer PEER connection-type on-demand
set vpn ipsec site-to-site peer PEER vti local prefix 192.168.10.0/24
set vpn ipsec site-to-site peer PEER vti remote prefix 192.168.20.0/24
set vpn ipsec site-to-site peer PEER local-address 60.0.0.10
set vpn ipsec site-to-site peer PEER remote-address 60.0.0.20
set interfaces ethernet eth0 address 60.0.0.10/24
set interfaces ethernet eth1 address 192.168.10.1/24
set interfaces vti vti0 ipsec PEER
set interfaces vti vti0 local-address 60.0.0.10
set protocols static route 0.0.0.0/0 interface vti0

Step 2: Set the following configuration in DUT1:

set vpn ipsec auth-profile AUTH-SA local auth pre-shared-secret test
set vpn ipsec esp-group CHILD-SA proposal 1 encryption aes256gcm128
set vpn ipsec esp-group CHILD-SA proposal 1 pfs dh-group19
set vpn ipsec ike-group IKE-SA key-exchange ikev2
set vpn ipsec ike-group IKE-SA proposal 1 dh-group 19
set vpn ipsec ike-group IKE-SA proposal 1 encryption aes256gcm128
set vpn ipsec ike-group IKE-SA proposal 1 hash sha256
set vpn ipsec site-to-site peer PEER default-esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER auth-profile AUTH-SA
set vpn ipsec site-to-site peer PEER ike-group IKE-SA
set vpn ipsec site-to-site peer PEER connection-type initiate
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 192.168.20.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 192.168.10.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER local-address 60.0.0.20
set vpn ipsec site-to-site peer PEER remote-address 60.0.0.10
set interfaces ethernet eth0 address 60.0.0.20/24
set interfaces ethernet eth1 address 192.168.20.1/24
set protocols static route 0.0.0.0/0 interface eth0

Step 3: Run command vpn ipsec show sa at DUT0 and check if output contains the following tokens:

ESTABLISHED
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 865debcb28acff7f_i b2e1dcfb0ab64c91_r*
  local  '60.0.0.10' @ 60.0.0.10[500]
  remote '60.0.0.20' @ 60.0.0.20[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 0s ago, rekeying in 19468s
  peer-PEER-tunnel-VTI: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3471s, expires in 3960s
    in  c438ebd4 (0x90000000),      0 bytes,     0 packets
    out c6d03634 (0x90000000),      0 bytes,     0 packets
    local  192.168.10.0/24
    remote 192.168.20.0/24

Step 4: Run command vpn ipsec show sa at DUT1 and check if output contains the following tokens:

ESTABLISHED
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 865debcb28acff7f_i* b2e1dcfb0ab64c91_r
  local  '60.0.0.20' @ 60.0.0.20[500]
  remote '60.0.0.10' @ 60.0.0.10[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 0s ago, rekeying in 24665s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3444s, expires in 3960s
    in  c6d03634,      0 bytes,     0 packets
    out c438ebd4,      0 bytes,     0 packets
    local  192.168.20.0/24
    remote 192.168.10.0/24

Step 5: Ping IP address 192.168.10.1 from DUT1:

admin@DUT1$ ping 192.168.10.1 local-address 192.168.20.1 count 1 size 56 timeout 1
Show output
PING 192.168.10.1 (192.168.10.1) from 192.168.20.1 : 56(84) bytes of data.
64 bytes from 192.168.10.1: icmp_seq=1 ttl=64 time=0.592 ms

--- 192.168.10.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.592/0.592/0.592/0.000 ms

Step 6: Ping IP address 192.168.20.1 from DUT0:

admin@DUT0$ ping 192.168.20.1 local-address 192.168.10.1 count 1 size 56 timeout 1
Show output
PING 192.168.20.1 (192.168.20.1) from 192.168.10.1 : 56(84) bytes of data.
64 bytes from 192.168.20.1: icmp_seq=1 ttl=64 time=0.641 ms

--- 192.168.20.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.641/0.641/0.641/0.000 ms

Step 7: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

,\s+[^0] packets
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 865debcb28acff7f_i b2e1dcfb0ab64c91_r*
  local  '60.0.0.10' @ 60.0.0.10[500]
  remote '60.0.0.20' @ 60.0.0.20[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 1s ago, rekeying in 19467s
  peer-PEER-tunnel-VTI: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3470s, expires in 3959s
    in  c438ebd4 (0x90000000),    168 bytes,     2 packets,     1s ago
    out c6d03634 (0x90000000),    168 bytes,     2 packets,     1s ago
    local  192.168.10.0/24
    remote 192.168.20.0/24