Xfrm Offload

This scenario shows how to configure IPSec policies and offload encryption/decryption processes.

../../../_images/xfrm.svg

Test XFRM Offload With VTI

Description

In this scenario, the tunnel is established by using a site-to-site peer through VTI interfaces.

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 address 10.0.0.1/32
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 system offload timeout 30
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX1+nRc6FtFWYncxhUtuZcDwJYdntQb4cmto=
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 0.0.0.0/0
set vpn ipsec site-to-site peer PEER vti remote prefix 192.168.20.0/24

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 address 20.0.0.1/32
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 system offload timeout 30
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX19Uy1fqtxQ+i1vL7/c/RHcTfo/HaXIhhqk=
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 192.168.20.0/24
set vpn ipsec site-to-site peer PEER vti remote prefix 0.0.0.0/0

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

INSTALLED
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 0e38375f2f139a82_i bc1524889d2e4840_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 18240s
  peer-PEER-tunnel-VTI: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3277s, expires in 3960s
    in  ca27f707 (0x90000000),      0 bytes,     0 packets
    out c28111d6 (0x90000000),      0 bytes,     0 packets
    local  0.0.0.0/0
    remote 192.168.20.0/24

Step 4: Run command system conntrack clear at DUT0.

Step 5: Initiate a udp connection from DUT0 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 5050 udp local-address 192.168.20.1
admin@DUT0$ monitor test connection client 192.168.20.1 5050 udp source-port 6060

Step 6: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
udp      17 29 src=127.0.0.1 dst=127.0.0.1 sport=35782 dport=2055 packets=2 bytes=260 [UNREPLIED] src=127.0.0.1 dst=127.0.0.1 sport=2055 dport=35782 packets=0 bytes=0 mark=0 use=1
unknown  50 src=60.0.0.10 dst=60.0.0.20 packets=5 bytes=520 src=60.0.0.20 dst=60.0.0.10 packets=5 bytes=520 [OFFLOAD, packets=3 bytes=312 packets=3 bytes=312] mark=0 use=2
udp      17 29 src=10.0.0.1 dst=192.168.20.1 sport=6060 dport=5050 packets=5 bytes=240 src=192.168.20.1 dst=10.0.0.1 sport=5050 dport=6060 packets=5 bytes=240 mark=0 use=1
conntrack v1.4.7 (conntrack-tools): 3 flow entries have been shown.

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

in.*\s+[^0]\d+ packets
out.*\s+[^0]\d+ packets
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 0e38375f2f139a82_i bc1524889d2e4840_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 4s ago, rekeying in 18237s
  peer-PEER-tunnel-VTI: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 4s ago, rekeying in 3274s, expires in 3957s
    in  ca27f707 (0x90000000),    240 bytes,     5 packets,     1s ago
    out c28111d6 (0x90000000),    240 bytes,     5 packets,     1s ago
    local  0.0.0.0/0
    remote 192.168.20.0/24

Step 8: Set the following configuration in DUT2 :

set interfaces ethernet eth0 address 192.168.10.2/24
set protocols static route 0.0.0.0/0 next-hop 192.168.10.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 9: Ping IP address 192.168.20.1 from DUT2:

admin@DUT2$ ping 192.168.20.1 count 1 size 56 timeout 1
Show output
PING 192.168.20.1 (192.168.20.1) 56(84) bytes of data.
64 bytes from 192.168.20.1: icmp_seq=1 ttl=63 time=4.11 ms

--- 192.168.20.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 4.114/4.114/4.114/0.000 ms

Step 10: Run command system conntrack clear at DUT0.

Step 11: Initiate a udp connection from DUT2 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 5050 udp local-address 192.168.20.1
admin@DUT2$ monitor test connection client 192.168.20.1 5050 udp source-port 6060

Step 12: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
udp\s+17.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
udp      17 src=192.168.10.2 dst=192.168.20.1 sport=6060 dport=5050 packets=5 bytes=240 src=192.168.20.1 dst=192.168.10.2 sport=5050 dport=6060 packets=5 bytes=240 [OFFLOAD, packets=3 bytes=144 packets=4 bytes=192] mark=0 use=2
unknown  50 src=60.0.0.10 dst=60.0.0.20 packets=5 bytes=520 src=60.0.0.20 dst=60.0.0.10 packets=5 bytes=520 [OFFLOAD, packets=3 bytes=312 packets=3 bytes=312] mark=0 use=2
conntrack v1.4.7 (conntrack-tools): 2 flow entries have been shown.

Step 13: Run command system conntrack clear at DUT0.

Step 14: Initiate a udp connection from DUT1 to DUT2 and try to send some messages between both endpoints

admin@DUT2$ monitor test connection server 5050 udp local-address 192.168.10.2
admin@DUT1$ monitor test connection client 192.168.10.2 5050 udp source-port 6060 local-address 192.168.20.1

Step 15: Initiate a udp connection from DUT2 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 6060 udp local-address 192.168.20.1
admin@DUT2$ monitor test connection client 192.168.20.1 6060 udp source-port 5050

Step 16: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
udp\s+17.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
unknown  50 src=60.0.0.20 dst=60.0.0.10 packets=10 bytes=1040 src=60.0.0.10 dst=60.0.0.20 packets=10 bytes=1040 [OFFLOAD, packets=7 bytes=728 packets=8 bytes=832] mark=0 use=2
udp      17 src=192.168.20.1 dst=192.168.10.2 sport=6060 dport=5050 packets=10 bytes=480 src=192.168.10.2 dst=192.168.20.1 sport=5050 dport=6060 packets=10 bytes=480 [OFFLOAD, packets=8 bytes=384 packets=9 bytes=432] mark=0 use=2
conntrack v1.4.7 (conntrack-tools): 2 flow entries have been shown.

Test XFRM Offload With DMVPN Transport Mode

Description

In this scenario, the tunnel is established by using NHRP. Transport mode is used for IPSec policies.

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 tunnel tun1 address 10.0.0.1/32
set interfaces tunnel tun1 encapsulation gre
set interfaces tunnel tun1 local-address 60.0.0.10
set interfaces tunnel tun1 local-interface eth0
set interfaces tunnel tun1 nhrp ipsec NHRP
set protocols static route 192.168.20.0/24 next-hop 20.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system offload timeout 30
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX1/OmXVtPfRvSN3xdmjI952NNrK/TJoLWcw=
set vpn ipsec dmvpn-profile NHRP auth-profile AUTH-SA
set vpn ipsec dmvpn-profile NHRP esp-group CHILD-SA
set vpn ipsec dmvpn-profile NHRP ike-group IKE-SA
set vpn ipsec esp-group CHILD-SA mode transport
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

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 tunnel tun1 address 20.0.0.1/32
set interfaces tunnel tun1 encapsulation gre
set interfaces tunnel tun1 local-address 60.0.0.20
set interfaces tunnel tun1 local-interface eth0
set interfaces tunnel tun1 nhrp ipsec NHRP
set interfaces tunnel tun1 nhrp nhs 10.0.0.1 nbma 60.0.0.10
set protocols static route 192.168.10.0/24 next-hop 10.0.0.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system offload timeout 30
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX19Rq5IYI/e2M1xJvOYeEaDwdR+6nvH1nMw=
set vpn ipsec dmvpn-profile NHRP auth-profile AUTH-SA
set vpn ipsec dmvpn-profile NHRP esp-group CHILD-SA
set vpn ipsec dmvpn-profile NHRP ike-group IKE-SA
set vpn ipsec esp-group CHILD-SA mode transport
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

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

INSTALLED
Show output
NHRP: #1, ESTABLISHED, IKEv2, ce5a5d8eb7229317_i f41dee4f9b5fdf55_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 19178s
  NHRP: #1, reqid 1, INSTALLED, TRANSPORT, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3322s, expires in 3959s
    in  c4c32f69,     96 bytes,     1 packets,     2s ago
    out ca54cadd,    116 bytes,     1 packets,     2s ago
    local  60.0.0.10/32[gre]
    remote 60.0.0.20/32[gre]

Step 4: Run command system conntrack clear at DUT0.

Step 5: Initiate a udp connection from DUT0 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 5050 udp local-address 192.168.20.1
admin@DUT0$ monitor test connection client 192.168.20.1 5050 udp source-port 6060

Step 6: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
gre\s+47.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
unknown  50 src=60.0.0.10 dst=60.0.0.20 packets=5 bytes=540 src=60.0.0.20 dst=60.0.0.10 packets=5 bytes=540 [OFFLOAD, packets=3 bytes=324 packets=3 bytes=324] mark=0 use=2
gre      47 src=60.0.0.10 dst=60.0.0.20 packets=5 bytes=360 src=60.0.0.20 dst=60.0.0.10 packets=5 bytes=360 [ASSURED] [OFFLOAD, packets=3 bytes=216 packets=3 bytes=216] mark=0 use=2
udp      17 29 src=10.0.0.1 dst=192.168.20.1 sport=6060 dport=5050 packets=5 bytes=240 src=192.168.20.1 dst=10.0.0.1 sport=5050 dport=6060 packets=5 bytes=240 mark=0 use=1
conntrack v1.4.7 (conntrack-tools): 3 flow entries have been shown.

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

in.*\s+[^0]\d+ packets
out.*\s+[^0]\d+ packets
Show output
NHRP: #1, ESTABLISHED, IKEv2, ce5a5d8eb7229317_i f41dee4f9b5fdf55_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 5s ago, rekeying in 19174s
  NHRP: #1, reqid 1, INSTALLED, TRANSPORT, ESP:AES_GCM_16-256
    installed 5s ago, rekeying in 3318s, expires in 3955s
    in  c4c32f69,    356 bytes,     6 packets,     0s ago
    out ca54cadd,    376 bytes,     6 packets,     0s ago
    local  60.0.0.10/32[gre]
    remote 60.0.0.20/32[gre]

Step 8: Set the following configuration in DUT2 :

set interfaces ethernet eth0 address 192.168.10.2/24
set protocols static route 0.0.0.0/0 next-hop 192.168.10.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 9: Ping IP address 192.168.20.1 from DUT2:

admin@DUT2$ ping 192.168.20.1 count 1 size 56 timeout 1
Show output
PING 192.168.20.1 (192.168.20.1) 56(84) bytes of data.
64 bytes from 192.168.20.1: icmp_seq=1 ttl=63 time=1.26 ms

--- 192.168.20.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 1.259/1.259/1.259/0.000 ms

Step 10: Run command system conntrack clear at DUT0.

Step 11: Initiate a udp connection from DUT2 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 5050 udp local-address 192.168.20.1
admin@DUT2$ monitor test connection client 192.168.20.1 5050 udp source-port 6060

Step 12: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
gre\s+47.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
udp\s+17.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
udp      17 src=192.168.10.2 dst=192.168.20.1 sport=6060 dport=5050 packets=5 bytes=240 src=192.168.20.1 dst=192.168.10.2 sport=5050 dport=6060 packets=5 bytes=240 [OFFLOAD, packets=3 bytes=144 packets=4 bytes=192] mark=0 use=2
unknown  50 src=60.0.0.10 dst=60.0.0.20 packets=5 bytes=540 src=60.0.0.20 dst=60.0.0.10 packets=5 bytes=540 [OFFLOAD, packets=3 bytes=324 packets=3 bytes=324] mark=0 use=2
gre      47 src=60.0.0.10 dst=60.0.0.20 packets=5 bytes=360 src=60.0.0.20 dst=60.0.0.10 packets=5 bytes=360 [ASSURED] [OFFLOAD, packets=3 bytes=216 packets=3 bytes=216] mark=0 use=2
conntrack v1.4.7 (conntrack-tools): 3 flow entries have been shown.

Step 13: Run command system conntrack clear at DUT0.

Step 14: Initiate a udp connection from DUT1 to DUT2 and try to send some messages between both endpoints

admin@DUT2$ monitor test connection server 5050 udp local-address 192.168.10.2
admin@DUT1$ monitor test connection client 192.168.10.2 5050 udp source-port 6060 local-address 192.168.20.1

Step 15: Initiate a udp connection from DUT2 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 6060 udp local-address 192.168.20.1
admin@DUT2$ monitor test connection client 192.168.20.1 6060 udp source-port 5050

Step 16: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
gre\s+47.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
udp\s+17.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
gre      47 src=60.0.0.20 dst=60.0.0.10 packets=10 bytes=720 src=60.0.0.10 dst=60.0.0.20 packets=10 bytes=720 [ASSURED] [OFFLOAD, packets=7 bytes=504 packets=8 bytes=576] mark=0 use=2
unknown  50 src=60.0.0.20 dst=60.0.0.10 packets=10 bytes=1080 src=60.0.0.10 dst=60.0.0.20 packets=10 bytes=1080 [OFFLOAD, packets=7 bytes=756 packets=8 bytes=864] mark=0 use=2
udp      17 src=192.168.20.1 dst=192.168.10.2 sport=6060 dport=5050 packets=10 bytes=480 src=192.168.10.2 dst=192.168.20.1 sport=5050 dport=6060 packets=10 bytes=480 [OFFLOAD, packets=8 bytes=384 packets=9 bytes=432] mark=0 use=2
conntrack v1.4.7 (conntrack-tools): 3 flow entries have been shown.

Test XFRM Offload With Site To Site

Description

In this scenario, the tunnel is established by using a site-to-site peer.

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 protocols static route 0.0.0.0/0 next-hop 60.0.0.20
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system offload timeout 30
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX185lpI+KCle2Q/9yxyaFs8R9dmK8gPkl9Y=
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 tunnel 1 local prefix 192.168.10.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 192.168.20.0/24

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 protocols static route 0.0.0.0/0 next-hop 60.0.0.10
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system offload timeout 30
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX1/gZuq6+/FghJROKgTPJY+r5G+8mzxkeY4=
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 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

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

INSTALLED
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 33414c1444ca86dd_i a57f8ac6d2012695_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 21520s
  peer-PEER-tunnel-1: #2, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3320s, expires in 3960s
    in  c3fb5525,      0 bytes,     0 packets
    out cffd7bb4,      0 bytes,     0 packets
    local  192.168.10.0/24
    remote 192.168.20.0/24

Step 4: Set the following configuration in DUT2 :

set interfaces ethernet eth0 address 192.168.10.2/24
set protocols static route 0.0.0.0/0 next-hop 192.168.10.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 5: Ping IP address 192.168.20.1 from DUT2:

admin@DUT2$ ping 192.168.20.1 count 1 size 56 timeout 1
Show output
PING 192.168.20.1 (192.168.20.1) 56(84) bytes of data.
64 bytes from 192.168.20.1: icmp_seq=1 ttl=63 time=1.90 ms

--- 192.168.20.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 1.898/1.898/1.898/0.000 ms

Step 6: Run command system conntrack clear at DUT0.

Step 7: Initiate a udp connection from DUT2 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 5050 udp local-address 192.168.20.1
admin@DUT2$ monitor test connection client 192.168.20.1 5050 udp source-port 6060

Step 8: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
udp\s+17.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
udp      17 src=192.168.10.2 dst=192.168.20.1 sport=6060 dport=5050 packets=5 bytes=240 src=192.168.20.1 dst=192.168.10.2 sport=5050 dport=6060 packets=5 bytes=240 [OFFLOAD, packets=2 bytes=96 packets=3 bytes=144] mark=0 use=2
unknown  50 src=60.0.0.10 dst=60.0.0.20 packets=5 bytes=520 src=60.0.0.20 dst=60.0.0.10 packets=5 bytes=520 [OFFLOAD, packets=3 bytes=312 packets=3 bytes=312] mark=0 use=2
conntrack v1.4.7 (conntrack-tools): 2 flow entries have been shown.

Step 9: Run command system conntrack clear at DUT0.

Step 10: Initiate a udp connection from DUT1 to DUT2 and try to send some messages between both endpoints

admin@DUT2$ monitor test connection server 5050 udp local-address 192.168.10.2
admin@DUT1$ monitor test connection client 192.168.10.2 5050 udp source-port 6060 local-address 192.168.20.1

Step 11: Initiate a udp connection from DUT2 to DUT1 and try to send some messages between both endpoints

admin@DUT1$ monitor test connection server 6060 udp local-address 192.168.20.1
admin@DUT2$ monitor test connection client 192.168.20.1 6060 udp source-port 5050

Step 12: Run command system conntrack show at DUT0 and check if output matches the following regular expressions:

unknown\s+50.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
udp\s+17.*[OFFLOAD, packets=[1-9]\d* bytes=[1-9]\d* packets=[1-9]\d* bytes=[1-9]\d*]
Show output
unknown  50 src=60.0.0.20 dst=60.0.0.10 packets=10 bytes=1040 src=60.0.0.10 dst=60.0.0.20 packets=10 bytes=1040 [OFFLOAD, packets=7 bytes=728 packets=8 bytes=832] mark=0 use=2
udp      17 src=192.168.20.1 dst=192.168.10.2 sport=6060 dport=5050 packets=10 bytes=480 src=192.168.10.2 dst=192.168.20.1 sport=5050 dport=6060 packets=10 bytes=480 [OFFLOAD, packets=7 bytes=336 packets=7 bytes=336] mark=0 use=2
conntrack v1.4.7 (conntrack-tools): 2 flow entries have been shown.