Site-To-Site

This scenario shows how to configure and connect two subnets with each other through a VPN tunnel and automatically configure the negotiated remote prefixes as routes. DUT0 acts as a responder and DUT1 as a initiator.

../../../../../../../_images/sitetosite1.svg

Test Site-To-Site With Basic Route Installation

Description

In this scenario, both devices install routes for the VPN traffic in the main table.

Scenario

Step 1: Run command protocols ip show route at DUT0 and check if output does not contain the following tokens:

K>* 10.3.0.0/24

Step 2: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 10.1.0.1/24
set interfaces ethernet eth0 address 80.0.0.1/24
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf main
set vpn ipsec auth-profile AUTH-SA global-secrets ike-psk %any encrypted-secret U2FsdGVkX1/RlhQ2TSIwCFBUfy45Td0rXoQx9XhNTjE=
set vpn ipsec auth-profile AUTH-SA local auth ike-psk id %any
set vpn ipsec auth-profile AUTH-SA remote auth ike-psk id %any
set vpn ipsec esp-group CHILD-SA mode tunnel
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 80.0.0.1
set vpn ipsec site-to-site peer PEER remote-address 80.0.0.2
set vpn ipsec site-to-site peer PEER tunnel 1 install-routes main
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.3.0.0/24

Step 3: Set the following configuration in DUT1 :

set interfaces dummy dum0 address 10.3.0.1/24
set interfaces ethernet eth0 address 80.0.0.2/24
set protocols static route 0.0.0.0/0 next-hop 80.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf main
set vpn ipsec auth-profile AUTH-SA global-secrets ike-psk %any encrypted-secret U2FsdGVkX1/Hi36H1hJP5dcna/xGArRXHE1HZnJSPNo=
set vpn ipsec auth-profile AUTH-SA local auth ike-psk id %any
set vpn ipsec auth-profile AUTH-SA remote auth ike-psk id %any
set vpn ipsec esp-group CHILD-SA mode tunnel
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 80.0.0.2
set vpn ipsec site-to-site peer PEER remote-address 80.0.0.1
set vpn ipsec site-to-site peer PEER tunnel 1 install-routes main
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.1.0.0/24

Step 4: Ping IP address 80.0.0.1 from DUT1:

admin@DUT1$ ping 80.0.0.1 count 1 size 56 timeout 1
Show output
PING 80.0.0.1 (80.0.0.1) 56(84) bytes of data.
64 bytes from 80.0.0.1: icmp_seq=1 ttl=64 time=0.630 ms

--- 80.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.630/0.630/0.630/0.000 ms

Step 5: Ping IP address 80.0.0.2 from DUT0:

admin@DUT0$ ping 80.0.0.2 count 1 size 56 timeout 1
Show output
PING 80.0.0.2 (80.0.0.2) 56(84) bytes of data.
64 bytes from 80.0.0.2: icmp_seq=1 ttl=64 time=0.250 ms

--- 80.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.250/0.250/0.250/0.000 ms

Step 6: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

peer-PEER-tunnel-\d+.+INSTALLED
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 5d713e6761a5b384_i a2f78967c247f908_r*
  local  '80.0.0.1' @ 80.0.0.1[500]
  remote '80.0.0.2' @ 80.0.0.2[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 0s ago, rekeying in 17338s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3262s, expires in 3960s
    in  c47dee4e,      0 bytes,     0 packets
    out c6053981,      0 bytes,     0 packets
    local  10.1.0.0/24
    remote 10.3.0.0/24

Step 7: Run command protocols ip show route at DUT0 and check if output contains the following tokens:

K>* 10.3.0.0/24
Show output
Codes: K - kernel route, C - connected, L - local, S - static,
       R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
       T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
       f - OpenFabric, t - Table-Direct,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

IPv4 unicast VRF default:
C>* 10.1.0.0/24 is directly connected, dum0, weight 1, 00:00:06
K * 10.1.0.0/24 [0/0] is directly connected, dum0, weight 1, 00:00:06
L>* 10.1.0.1/32 is directly connected, dum0, weight 1, 00:00:06
K>* 10.3.0.0/24 [0/0] via 80.0.0.2, eth0, weight 1, 00:00:00
C>* 80.0.0.0/24 is directly connected, eth0, weight 1, 00:00:06
K * 80.0.0.0/24 [0/0] is directly connected, eth0, weight 1, 00:00:06
L>* 80.0.0.1/32 is directly connected, eth0, weight 1, 00:00:06

Step 8: Run command vpn ipsec clear sa at DUT1 and expect this output:

Show output
Deleting IPSec SAs... 100.0%
Closed tunnels: 1

Step 9: Run command vpn ipsec initiate peer PEER at DUT1 and expect this output:

Show output
Initiating IPSec SAs... 0.0%
Initiated tunnels: 1

Step 10: Ping IP address 10.1.0.1 from DUT1:

admin@DUT1$ ping 10.1.0.1 local-address 10.3.0.1 count 1 size 56 timeout 1
Show output
PING 10.1.0.1 (10.1.0.1) from 10.3.0.1 : 56(84) bytes of data.
64 bytes from 10.1.0.1: icmp_seq=1 ttl=64 time=0.487 ms

--- 10.1.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.487/0.487/0.487/0.000 ms

Step 11: Initiate a tcp connection from DUT1 to DUT0 and try to send some messages between both endpoints

admin@DUT0$ monitor test connection server 8080 tcp
admin@DUT1$ monitor test connection client 10.1.0.1 8080 tcp local-address 10.3.0.1

Step 12: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

[1-9]\d? packets
Show output
vpn-peer-PEER: #2, ESTABLISHED, IKEv2, fd9e50b46b078ccd_i 18b1f3536fb79983_r*
  local  '80.0.0.1' @ 80.0.0.1[500]
  remote '80.0.0.2' @ 80.0.0.2[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 3s ago, rekeying in 25544s
  peer-PEER-tunnel-1: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 3s ago, rekeying in 3290s, expires in 3957s
    in  c62582b6,    920 bytes,    15 packets,     0s ago
    out c276c200,    660 bytes,    10 packets,     0s ago
    local  10.1.0.0/24
    remote 10.3.0.0/24

Test Site-To-Site With VRF Route Installation

Description

In this scenario, DUT0 install reoutes in a separate VRF called LAN.

Scenario

Step 1: Run command protocols vrf LAN ip show route at DUT0 and check if output does not contain the following tokens:

K>* 10.3.0.0/24
Show output
% VRF LAN not found

Step 2: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 10.1.0.1/24
set interfaces dummy dum0 vrf LAN
set interfaces ethernet eth0 address 80.0.0.1/24
set interfaces ethernet eth0 vrf WAN
set protocols vrf WAN static route 10.1.0.0/24 next-hop-vrf LAN
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf LAN
set system vrf WAN
set vpn ipsec auth-profile AUTH-SA global-secrets ike-psk %any encrypted-secret U2FsdGVkX192eE8qYLSvZvKncdzBPL+eA2Xol1R2K9k=
set vpn ipsec auth-profile AUTH-SA local auth ike-psk id %any
set vpn ipsec auth-profile AUTH-SA remote auth ike-psk id %any
set vpn ipsec esp-group CHILD-SA mode tunnel
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 80.0.0.1
set vpn ipsec site-to-site peer PEER remote-address 80.0.0.2
set vpn ipsec site-to-site peer PEER tunnel 1 install-routes LAN
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.3.0.0/24

Step 3: Set the following configuration in DUT1 :

set interfaces dummy dum0 address 10.3.0.1/24
set interfaces ethernet eth0 address 80.0.0.2/24
set protocols static route 0.0.0.0/0 next-hop 80.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf main
set vpn ipsec auth-profile AUTH-SA global-secrets ike-psk %any encrypted-secret U2FsdGVkX1/LV922jOiykRF8YArtPEqdh6wI9ClEfsg=
set vpn ipsec auth-profile AUTH-SA local auth ike-psk id %any
set vpn ipsec auth-profile AUTH-SA remote auth ike-psk id %any
set vpn ipsec esp-group CHILD-SA mode tunnel
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 80.0.0.2
set vpn ipsec site-to-site peer PEER remote-address 80.0.0.1
set vpn ipsec site-to-site peer PEER tunnel 1 install-routes main
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.1.0.0/24

Step 4: Ping IP address 80.0.0.1 from DUT1:

admin@DUT1$ ping 80.0.0.1 count 1 size 56 timeout 1
Show output
PING 80.0.0.1 (80.0.0.1) 56(84) bytes of data.
64 bytes from 80.0.0.1: icmp_seq=1 ttl=64 time=0.277 ms

--- 80.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.277/0.277/0.277/0.000 ms

Step 5: Ping IP address 80.0.0.2 from DUT0:

admin@DUT0$ ping 80.0.0.2 vrf WAN count 1 size 56 timeout 1
Show output
ping: Warning: source address might be selected on device other than: WAN
PING 80.0.0.2 (80.0.0.2) from 80.0.0.1 WAN: 56(84) bytes of data.
64 bytes from 80.0.0.2: icmp_seq=1 ttl=64 time=0.264 ms

--- 80.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.264/0.264/0.264/0.000 ms

Step 6: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

peer-PEER-tunnel-\d+.+INSTALLED
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, aaba2c9beea1fdfc_i 60857889f15ec9f4_r*
  local  '80.0.0.1' @ 80.0.0.1[500]
  remote '80.0.0.2' @ 80.0.0.2[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 0s ago, rekeying in 15927s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3258s, expires in 3960s
    in  ca469560,      0 bytes,     0 packets
    out c0004d92,      0 bytes,     0 packets
    local  10.1.0.0/24
    remote 10.3.0.0/24

Step 7: Run command protocols vrf LAN ip show route at DUT0 and check if output contains the following tokens:

K>* 10.3.0.0/24
Show output
Codes: K - kernel route, C - connected, L - local, S - static,
       R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
       T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
       f - OpenFabric, t - Table-Direct,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

IPv4 unicast VRF LAN:
K>* 0.0.0.0/0 [255/8192] unreachable (ICMP unreachable), weight 1, 00:00:06
C>* 10.1.0.0/24 is directly connected, dum0, weight 1, 00:00:06
L>* 10.1.0.1/32 is directly connected, dum0, weight 1, 00:00:06
K>* 10.3.0.0/24 [0/0] via 80.0.0.2, eth0 (vrf WAN), weight 1, 00:00:00

Step 8: Run command vpn ipsec clear sa at DUT1 and expect this output:

Show output
Deleting IPSec SAs... 100.0%
Closed tunnels: 1

Step 9: Run command vpn ipsec initiate peer PEER at DUT1 and expect this output:

Show output
Initiating IPSec SAs... 0.0%
Initiated tunnels: 1

Step 10: Ping IP address 10.1.0.1 from DUT1:

admin@DUT1$ ping 10.1.0.1 local-address 10.3.0.1 count 1 size 56 timeout 1
Show output
PING 10.1.0.1 (10.1.0.1) from 10.3.0.1 : 56(84) bytes of data.
64 bytes from 10.1.0.1: icmp_seq=1 ttl=64 time=0.628 ms

--- 10.1.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.628/0.628/0.628/0.000 ms

Step 11: Initiate a tcp connection from DUT1 to DUT0 and try to send some messages between both endpoints

admin@DUT0$ monitor test connection server 8080 tcp vrf LAN
admin@DUT1$ monitor test connection client 10.1.0.1 8080 tcp local-address 10.3.0.1

Step 12: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

[1-9]\d? packets
Show output
vpn-peer-PEER: #2, ESTABLISHED, IKEv2, 431fa50d40d068cc_i 9e4255ed3ceb18d1_r*
  local  '80.0.0.1' @ 80.0.0.1[500]
  remote '80.0.0.2' @ 80.0.0.2[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 3s ago, rekeying in 16377s
  peer-PEER-tunnel-1: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 3s ago, rekeying in 3483s, expires in 3957s
    in  cbe19e1b,    764 bytes,    12 packets,     0s ago
    out c31840c1,    712 bytes,    11 packets,     0s ago
    local  10.1.0.0/24
    remote 10.3.0.0/24

Test Site-To-Site With Route Installation And Metrics

Description

In this scenario, DUT0 installs routes with differents metrics for both IPsec peers. The point is to check if the routes are installed correctly and most importantly, whenever the prioritized route is down, the backup route is used.

Scenario

Step 1: Run command protocols ip show route at DUT0 and check if output does not contain the following tokens:

K>* 10.3.0.0/24

Step 2: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 10.1.0.1/24
set interfaces ethernet eth0 address 80.0.0.1/24
set interfaces ethernet eth1 address 90.0.0.1/24
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf main
set vpn ipsec auth-profile AUTH-SA global-secrets ike-psk %any encrypted-secret U2FsdGVkX18MVk3UTTzt+Fu/10ssydlvGdE9X3vnTnc=
set vpn ipsec auth-profile AUTH-SA local auth ike-psk id %any
set vpn ipsec auth-profile AUTH-SA remote auth ike-psk id %any
set vpn ipsec esp-group CHILD-SA mode tunnel
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 logging log-types any log-level 2
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 80.0.0.1
set vpn ipsec site-to-site peer PEER remote-address 80.0.0.2
set vpn ipsec site-to-site peer PEER tunnel 1 install-routes main
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 route-priority 10
set vpn ipsec site-to-site peer PEER1 auth-profile AUTH-SA
set vpn ipsec site-to-site peer PEER1 connection-type respond
set vpn ipsec site-to-site peer PEER1 default-esp-group CHILD-SA
set vpn ipsec site-to-site peer PEER1 ike-group IKE-SA
set vpn ipsec site-to-site peer PEER1 local-address 90.0.0.1
set vpn ipsec site-to-site peer PEER1 remote-address 90.0.0.3
set vpn ipsec site-to-site peer PEER1 tunnel 1 install-routes main
set vpn ipsec site-to-site peer PEER1 tunnel 1 local prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER1 tunnel 1 remote prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER1 tunnel 1 route-priority 100

Step 3: Set the following configuration in DUT1 :

set interfaces dummy dum0 address 10.3.0.1/24
set interfaces ethernet eth0 address 80.0.0.2/24
set protocols static route 0.0.0.0/0 next-hop 80.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf main
set vpn ipsec auth-profile AUTH-SA global-secrets ike-psk %any encrypted-secret U2FsdGVkX1/c0sgCptWhglxcT3IQwmYl7Li7pv+nKXs=
set vpn ipsec auth-profile AUTH-SA local auth ike-psk id %any
set vpn ipsec auth-profile AUTH-SA remote auth ike-psk id %any
set vpn ipsec esp-group CHILD-SA mode tunnel
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 80.0.0.2
set vpn ipsec site-to-site peer PEER remote-address 80.0.0.1
set vpn ipsec site-to-site peer PEER tunnel 1 install-routes main
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.1.0.0/24

Step 4: Set the following configuration in DUT2 :

set interfaces dummy dum0 address 10.3.0.1/24
set interfaces ethernet eth1 address 90.0.0.3/24
set protocols static route 0.0.0.0/0 next-hop 90.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set vpn ipsec auth-profile AUTH-SA global-secrets ike-psk %any encrypted-secret U2FsdGVkX18xxjLY019lHx95y4BFNpkC33tG8Xs5HjA=
set vpn ipsec auth-profile AUTH-SA local auth ike-psk id %any
set vpn ipsec auth-profile AUTH-SA remote auth ike-psk id %any
set vpn ipsec esp-group CHILD-SA mode tunnel
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 90.0.0.3
set vpn ipsec site-to-site peer PEER remote-address 90.0.0.1
set vpn ipsec site-to-site peer PEER tunnel 1 local prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.1.0.0/24

Step 5: Ping IP address 80.0.0.1 from DUT1:

admin@DUT1$ ping 80.0.0.1 count 1 size 56 timeout 1
Show output
PING 80.0.0.1 (80.0.0.1) 56(84) bytes of data.
64 bytes from 80.0.0.1: icmp_seq=1 ttl=64 time=0.441 ms

--- 80.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.441/0.441/0.441/0.000 ms

Step 6: Ping IP address 80.0.0.2 from DUT0:

admin@DUT0$ ping 80.0.0.2 count 1 size 56 timeout 1
Show output
PING 80.0.0.2 (80.0.0.2) 56(84) bytes of data.
64 bytes from 80.0.0.2: icmp_seq=1 ttl=64 time=0.604 ms

--- 80.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.604/0.604/0.604/0.000 ms

Step 7: Ping IP address 90.0.0.3 from DUT2:

admin@DUT2$ ping 90.0.0.3 count 1 size 56 timeout 1
Show output
PING 90.0.0.3 (90.0.0.3) 56(84) bytes of data.
64 bytes from 90.0.0.3: icmp_seq=1 ttl=64 time=0.033 ms

--- 90.0.0.3 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.033/0.033/0.033/0.000 ms

Step 8: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

peer-PEER-tunnel-\d+.+INSTALLED
Show output
vpn-peer-PEER1: #2, ESTABLISHED, IKEv2, e4d47b3065ef289d_i ffd6a4409b5e8073_r*
  local  '90.0.0.1' @ 90.0.0.1[500]
  remote '90.0.0.3' @ 90.0.0.3[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 1s ago, rekeying in 19110s
  peer-PEER1-tunnel-1: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3447s, expires in 3959s
    in  c8213b46,      0 bytes,     0 packets
    out cf47c680,      0 bytes,     0 packets
    local  10.1.0.0/24
    remote 10.3.0.0/24
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 9d40116434a982f5_i 43564b4fb46ea47b_r*
  local  '80.0.0.1' @ 80.0.0.1[500]
  remote '80.0.0.2' @ 80.0.0.2[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 6s ago, rekeying in 17587s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 6s ago, rekeying in 3347s, expires in 3954s
    in  cc251301,      0 bytes,     0 packets
    out c9e08f4f,      0 bytes,     0 packets
    local  10.1.0.0/24
    remote 10.3.0.0/24

Step 9: Run command protocols ip show route at DUT0 and check if output contains the following tokens:

K>* 10.3.0.0/24
Show output
Codes: K - kernel route, C - connected, L - local, S - static,
       R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
       T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
       f - OpenFabric, t - Table-Direct,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

IPv4 unicast VRF default:
C>* 10.1.0.0/24 is directly connected, dum0, weight 1, 00:00:11
L>* 10.1.0.1/32 is directly connected, dum0, weight 1, 00:00:11
K * 10.3.0.0/24 [0/100] via 90.0.0.3, eth1, weight 1, 00:00:01
K>* 10.3.0.0/24 [0/10] via 80.0.0.2, eth0, weight 1, 00:00:06
C>* 80.0.0.0/24 is directly connected, eth0, weight 1, 00:00:11
K * 80.0.0.0/24 [0/0] is directly connected, eth0, weight 1, 00:00:11
L>* 80.0.0.1/32 is directly connected, eth0, weight 1, 00:00:11
C>* 90.0.0.0/24 is directly connected, eth1, weight 1, 00:00:11
K * 90.0.0.0/24 [0/0] is directly connected, eth1, weight 1, 00:00:11
L>* 90.0.0.1/32 is directly connected, eth1, weight 1, 00:00:11

Step 10: Run command show system route ip at DUT0 and check if output contains the following tokens:

10.3.0.0/24 via 90.0.0.3 dev eth1 proto static metric 100
10.3.0.0/24 via 80.0.0.2 dev eth0 proto static metric 10
Show output
10.1.0.0/24 dev dum0 proto kernel scope link src 10.1.0.1
10.3.0.0/24 via 80.0.0.2 dev eth0 proto static metric 10
10.3.0.0/24 via 90.0.0.3 dev eth1 proto static metric 100
80.0.0.0/24 dev eth0 proto kernel scope link src 80.0.0.1
90.0.0.0/24 dev eth1 proto kernel scope link src 90.0.0.1

Note

The tunnel with the lowest metric configured in the route-priority parameter should be the one used to route the traffic.

Step 11: Run command vpn ipsec clear sa at DUT1 and expect this output:

Show output
Deleting IPSec SAs... 100.0%
Closed tunnels: 1

Step 12: Run command vpn ipsec initiate peer PEER at DUT1 and expect this output:

Show output
Initiating IPSec SAs... 0.0%
Initiated tunnels: 1

Step 13: Ping IP address 10.1.0.1 from DUT1:

admin@DUT1$ ping 10.1.0.1 local-address 10.3.0.1 count 1 size 56 timeout 1
Show output
PING 10.1.0.1 (10.1.0.1) from 10.3.0.1 : 56(84) bytes of data.
64 bytes from 10.1.0.1: icmp_seq=1 ttl=64 time=0.342 ms

--- 10.1.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.342/0.342/0.342/0.000 ms

Step 14: Initiate a tcp connection from DUT1 to DUT0 and try to send some messages between both endpoints

admin@DUT0$ monitor test connection server 8080 tcp
admin@DUT1$ monitor test connection client 10.1.0.1 8080 tcp local-address 10.3.0.1

Step 15: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

[1-9]\d? packets
Show output
vpn-peer-PEER: #3, ESTABLISHED, IKEv2, a94261f44ea98f3a_i c7f91acb6e638267_r*
  local  '80.0.0.1' @ 80.0.0.1[500]
  remote '80.0.0.2' @ 80.0.0.2[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 2s ago, rekeying in 21808s
  peer-PEER-tunnel-1: #3, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 2s ago, rekeying in 3243s, expires in 3958s
    in  c517af17,    764 bytes,    12 packets,     0s ago
    out c3e27bc8,    660 bytes,    10 packets,     0s ago
    local  10.1.0.0/24
    remote 10.3.0.0/24
vpn-peer-PEER1: #2, ESTABLISHED, IKEv2, e4d47b3065ef289d_i ffd6a4409b5e8073_r*
  local  '90.0.0.1' @ 90.0.0.1[500]
  remote '90.0.0.3' @ 90.0.0.3[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 4s ago, rekeying in 19107s
  peer-PEER1-tunnel-1: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 4s ago, rekeying in 3444s, expires in 3956s
    in  c8213b46,      0 bytes,     0 packets
    out cf47c680,      0 bytes,     0 packets
    local  10.1.0.0/24
    remote 10.3.0.0/24

Note

Now we will shutdown the tunnel with the lowest metric from DUT1 and check if the traffic is routed through the backup tunnel.

Step 16: Run command vpn ipsec clear sa at DUT1 and expect this output:

Show output
Deleting IPSec SAs... 100.0%
Closed tunnels: 1

Step 17: Run command vpn ipsec clear sa at DUT2 and expect this output:

Show output
Deleting IPSec SAs... 100.0%
Closed tunnels: 1

Step 18: Run command vpn ipsec initiate peer PEER at DUT2 and expect this output:

Show output
Initiating IPSec SAs... 0.0%
Initiated tunnels: 1

Step 19: Ping IP address 10.1.0.1 from DUT2:

admin@DUT2$ ping 10.1.0.1 local-address 10.3.0.1 count 1 size 56 timeout 1
Show output
PING 10.1.0.1 (10.1.0.1) from 10.3.0.1 : 56(84) bytes of data.
64 bytes from 10.1.0.1: icmp_seq=1 ttl=64 time=0.337 ms

--- 10.1.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.337/0.337/0.337/0.000 ms

Step 20: Initiate a tcp connection from DUT2 to DUT0 and try to send some messages between both endpoints

admin@DUT0$ monitor test connection server 8080 tcp
admin@DUT2$ monitor test connection client 10.1.0.1 8080 tcp local-address 10.3.0.1

Step 21: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

[1-9]\d? packets
Show output
vpn-peer-PEER1: #4, ESTABLISHED, IKEv2, e7b24e9ed9af9660_i 1d1b9f0720570af1_r*
  local  '90.0.0.1' @ 90.0.0.1[500]
  remote '90.0.0.3' @ 90.0.0.3[500]
  AES_GCM_16-256/PRF_HMAC_SHA2_256/ECP_256
  established 3s ago, rekeying in 18400s
  peer-PEER1-tunnel-1: #4, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 3s ago, rekeying in 3294s, expires in 3957s
    in  cd77a3f0,    764 bytes,    12 packets,     0s ago
    out cec6d567,    764 bytes,    12 packets,     0s ago
    local  10.1.0.0/24
    remote 10.3.0.0/24

Step 22: Run command show system route ip at DUT0 and check if output contains the following tokens:

10.3.0.0/24 via 90.0.0.3 dev eth1 proto static metric 100
Show output
10.1.0.0/24 dev dum0 proto kernel scope link src 10.1.0.1
10.3.0.0/24 via 90.0.0.3 dev eth1 proto static metric 100
80.0.0.0/24 dev eth0 proto kernel scope link src 80.0.0.1
90.0.0.0/24 dev eth1 proto kernel scope link src 90.0.0.1

Step 23: Run command show system route ip at DUT0 and check if output does not contain the following tokens:

10.3.0.0/24 via 80.0.0.2 dev eth0 proto static metric 10
Show output
10.1.0.0/24 dev dum0 proto kernel scope link src 10.1.0.1
10.3.0.0/24 via 90.0.0.3 dev eth1 proto static metric 100
80.0.0.0/24 dev eth0 proto kernel scope link src 80.0.0.1
90.0.0.0/24 dev eth1 proto kernel scope link src 90.0.0.1