Check Vti To Vti

These scenarios show how to configure and route traffic via VTI (Virtual Tunnel Interface) devices.

../../../_images/vtivti.svg

Test VTI Responder To VTI

Description

A VTI device is configured in each end-point. DUT1 acts as an initiator and DUT0 as a responder.

Scenario

Step 1: Set the following configuration in DUT0:

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
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX19reSe+nFuU9tMoBu5z8w3KBOtRRJwYFWE=
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 auth-profile AUTH-SA
set vpn ipsec site-to-site peer PEER connection-type respond
set vpn ipsec site-to-site peer PEER default-esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER ike-group IKE-SA
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 vpn ipsec site-to-site peer PEER vti local prefix 192.168.0.0/16
set vpn ipsec site-to-site peer PEER vti remote prefix 192.168.0.0/16

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 60.0.0.20/24
set interfaces ethernet eth1 address 192.168.20.1/24
set interfaces vti vti0 ipsec PEER
set interfaces vti vti0 local-address 60.0.0.20
set protocols static route 0.0.0.0/0 interface vti0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX19COtcoVSO3W8H0be6SWEfD+trEDd7XSK0=
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 auth-profile AUTH-SA
set vpn ipsec site-to-site peer PEER connection-type initiate
set vpn ipsec site-to-site peer PEER default-esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER ike-group IKE-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 vpn ipsec site-to-site peer PEER vti local prefix 192.168.0.0/16
set vpn ipsec site-to-site peer PEER vti remote prefix 192.168.0.0/16

Step 3: Ping IP address 60.0.0.20 from DUT0:

admin@DUT0$ ping 60.0.0.20 count 1 size 56 timeout 1
Show output
PING 60.0.0.20 (60.0.0.20) 56(84) bytes of data.
64 bytes from 60.0.0.20: icmp_seq=1 ttl=64 time=5.61 ms

--- 60.0.0.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 5.612/5.612/5.612/0.000 ms

Step 4: 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, 6314ea50596dd2ca_i 9c9f27591634dd9d_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 25554s
  peer-PEER-tunnel-VTI: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3242s, expires in 3960s
    in  c770c135 (0x90000000),      0 bytes,     0 packets
    out c41121e1 (0x90000000),      0 bytes,     0 packets
    local  192.168.0.0/16
    remote 192.168.0.0/16

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=0.497 ms

--- 192.168.10.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.497/0.497/0.497/0.000 ms

Step 6: 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, 6314ea50596dd2ca_i 9c9f27591634dd9d_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 25553s
  peer-PEER-tunnel-VTI: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3241s, expires in 3959s
    in  c770c135 (0x90000000),     84 bytes,     1 packets,     1s ago
    out c41121e1 (0x90000000),     84 bytes,     1 packets,     1s ago
    local  192.168.0.0/16
    remote 192.168.0.0/16

Test VTI On-Demand To VTI

Description

A VTI device is configured in each end-point. In this scenario, DUT0 is configured to only set the tunnel up when the first plaintext IP payload needs to go through the vti tunnel.

Scenario

Step 1: Set the following configuration in DUT0:

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
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX1+OsGz9S+CSP9Y5HLxEMjUVME7pdJRMfz8=
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 auth-profile AUTH-SA
set vpn ipsec site-to-site peer PEER connection-type on-demand
set vpn ipsec site-to-site peer PEER default-esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER ike-group IKE-SA
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 vpn ipsec site-to-site peer PEER vti local prefix 192.168.0.0/16
set vpn ipsec site-to-site peer PEER vti remote prefix 192.168.0.0/16

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 60.0.0.20/24
set interfaces ethernet eth1 address 192.168.20.1/24
set interfaces vti vti0 ipsec PEER
set interfaces vti vti0 local-address 60.0.0.20
set protocols static route 0.0.0.0/0 interface vti0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX1/RyFviIaoyB4jO3S9EokekVH33iq4TZpk=
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 auth-profile AUTH-SA
set vpn ipsec site-to-site peer PEER connection-type initiate
set vpn ipsec site-to-site peer PEER default-esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER ike-group IKE-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 vpn ipsec site-to-site peer PEER vti local prefix 192.168.0.0/16
set vpn ipsec site-to-site peer PEER vti remote prefix 192.168.0.0/16

Step 3: Ping IP address 60.0.0.20 from DUT0:

admin@DUT0$ ping 60.0.0.20 count 1 size 56 timeout 1
Show output
PING 60.0.0.20 (60.0.0.20) 56(84) bytes of data.
64 bytes from 60.0.0.20: icmp_seq=1 ttl=64 time=0.301 ms

--- 60.0.0.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.301/0.301/0.301/0.000 ms

Step 4: 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, f3b71c9c9d962a03_i 96408c1dd3c4b46c_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 14968s
  peer-PEER-tunnel-VTI: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3257s, expires in 3959s
    in  cfd4da92 (0x90000000),      0 bytes,     0 packets
    out c5f224be (0x90000000),      0 bytes,     0 packets
    local  192.168.0.0/16
    remote 192.168.0.0/16

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=0.339 ms

--- 192.168.10.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.339/0.339/0.339/0.000 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=3.28 ms

--- 192.168.20.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 3.281/3.281/3.281/0.000 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, f3b71c9c9d962a03_i 96408c1dd3c4b46c_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 14968s
  peer-PEER-tunnel-VTI: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3257s, expires in 3959s
    in  cfd4da92 (0x90000000),    168 bytes,     2 packets,     1s ago
    out c5f224be (0x90000000),    168 bytes,     2 packets,     1s ago
    local  192.168.0.0/16
    remote 192.168.0.0/16