Site-To-Site

This scenario shows how to connect different subnets using site-to-site VPN configuration. One device is VRF-aware, so WAN and LAN interfaces belong to different routing tables.

../../../../../../../_images/sitetosite2.svg

Test Site-To-Site VRF-Aware

Description

In this scenario, the WAN interface (eth0) and the LAN interface (dum0) are bound to different VRFs.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 10.1.0.1/24
set interfaces dummy dum0 vrf TUNNEL1
set interfaces ethernet eth0 address 80.0.0.1/24
set interfaces ethernet eth0 vrf WAN
set protocols vrf TUNNEL1 static route 0.0.0.0/0 interface eth0
set protocols vrf TUNNEL1 static route 10.3.0.0/24 interface dum0
set protocols vrf WAN static route 10.1.0.0/24 next-hop-vrf TUNNEL1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf TUNNEL1
set system vrf WAN
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX18FfGf2exZRfQoQsgXvBD9aj2qWAkVsYpY=
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 local prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 local-vrf TUNNEL1
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.3.0.0/24

Step 2: 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 interface dum0
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 U2FsdGVkX18cAd4dYG1ZguqHlPW+S+1wgjG6Qvsn2ag=
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 local prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 local-interface dum0
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.1.0.0/24

Step 3: 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=10.5 ms

--- 80.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 10.531/10.531/10.531/0.000 ms

Step 4: 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=6.53 ms

--- 80.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 6.525/6.525/6.525/0.000 ms

Step 5: 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, 53cd987d372772bc_i 4126b90742fb5330_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 1s ago, rekeying in 19944s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3341s, expires in 3959s
    in  c775910b,      0 bytes,     0 packets
    out c14783c1,      0 bytes,     0 packets
    local  10.1.0.0/24
    remote 10.3.0.0/24

Step 6: 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=0.480 ms

--- 10.1.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.480/0.480/0.480/0.000 ms

Step 7: 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: #1, ESTABLISHED, IKEv2, 53cd987d372772bc_i 4126b90742fb5330_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 19943s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 2s ago, rekeying in 3340s, expires in 3958s
    in  c775910b,     84 bytes,     1 packets,     0s ago
    out c14783c1,     84 bytes,     1 packets,     0s ago
    local  10.1.0.0/24
    remote 10.3.0.0/24

Attention

The command vpn show ipsec policy can be used to debug the IPSec selectors that have been installed in OSDx devices. Example for device DUT0:

Show output
src 10.1.0.0/24 dst 10.3.0.0/24 dev TUNNEL1
        dir out priority 375421
        tmpl src 80.0.0.1 dst 80.0.0.2
                proto esp spi 0xc14783c1 reqid 1 mode tunnel
src 10.3.0.0/24 dst 10.1.0.0/24
        dir fwd priority 375423
        tmpl src 80.0.0.2 dst 80.0.0.1
                proto esp reqid 1 mode tunnel
src 10.3.0.0/24 dst 10.1.0.0/24
        dir in priority 375423
        tmpl src 80.0.0.2 dst 80.0.0.1
                proto esp reqid 1 mode tunnel
src 0.0.0.0/0 dst 0.0.0.0/0
        socket in priority 0
src 0.0.0.0/0 dst 0.0.0.0/0
        socket out priority 0
src 0.0.0.0/0 dst 0.0.0.0/0
        socket in priority 0
src 0.0.0.0/0 dst 0.0.0.0/0
        socket out priority 0
src ::/0 dst ::/0
        socket in priority 0
src ::/0 dst ::/0
        socket out priority 0
src ::/0 dst ::/0
        socket in priority 0
src ::/0 dst ::/0
        socket out priority 0

Test Site-To-Site Multi-VRF

Description

In this scenario, two dummy interfaces are created and bound to different VRFs. The remote end-point should be able to establish an IPSec tunnel to both of them.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 10.1.0.1/24
set interfaces dummy dum0 vrf TUNNEL1
set interfaces dummy dum1 address 10.2.0.1/24
set interfaces dummy dum1 vrf TUNNEL2
set interfaces ethernet eth0 address 80.0.0.1/24
set interfaces ethernet eth0 vrf WAN
set protocols vrf TUNNEL1 static route 0.0.0.0/0 interface eth0
set protocols vrf TUNNEL1 static route 10.3.0.0/24 interface dum0
set protocols vrf TUNNEL2 static route 0.0.0.0/0 interface eth0
set protocols vrf TUNNEL2 static route 10.3.0.0/24 interface dum1
set protocols vrf WAN static route 10.1.0.0/24 next-hop-vrf TUNNEL1
set protocols vrf WAN static route 10.2.0.0/24 next-hop-vrf TUNNEL2
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system vrf TUNNEL1
set system vrf TUNNEL2
set system vrf WAN
set vpn ipsec auth-profile AUTH-SA local auth encrypted-pre-shared-secret U2FsdGVkX1/DCpRvpryZeSsQQch0pG5d/+/+w4g/a6M=
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 local prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 local-vrf TUNNEL1
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 2 local prefix 10.2.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 2 local-vrf TUNNEL2
set vpn ipsec site-to-site peer PEER tunnel 2 remote prefix 10.3.0.0/24

Step 2: 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 interface dum0
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/YNR0MqE+nKhV5yabVF+BARuk7aZ5gWP0=
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 local prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 local-interface dum0
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 2 local prefix 10.3.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 2 local-interface dum0
set vpn ipsec site-to-site peer PEER tunnel 2 remote prefix 10.2.0.0/24

Step 3: 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=0.552 ms

--- 80.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.552/0.552/0.552/0.000 ms

Step 4: 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=0.415 ms

--- 80.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.415/0.415/0.415/0.000 ms

Step 5: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

peer-PEER-tunnel-1.+INSTALLED
peer-PEER-tunnel-2.+INSTALLED
Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 642196cd0643f4b1_i f879b76543bd75bf_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 27866s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3265s, expires in 3960s
    in  c3bdb285,      0 bytes,     0 packets
    out cf0bf9ef,      0 bytes,     0 packets
    local  10.1.0.0/24
    remote 10.3.0.0/24
  peer-PEER-tunnel-2: #2, reqid 2, INSTALLED, TUNNEL, ESP:AES_GCM_16-256/ECP_256
    installed 0s ago, rekeying in 3340s, expires in 3960s
    in  cabe6bc6,      0 bytes,     0 packets
    out ce8f5e17,      0 bytes,     0 packets
    local  10.2.0.0/24
    remote 10.3.0.0/24

Step 6: 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=0.380 ms

--- 10.1.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.380/0.380/0.380/0.000 ms

Step 7: Ping IP address 10.2.0.1 from DUT1:

admin@DUT1$ ping 10.2.0.1 local-address 10.3.0.1 count 1 size 56 timeout 1
Show output
PING 10.2.0.1 (10.2.0.1) from 10.3.0.1 : 56(84) bytes of data.
64 bytes from 10.2.0.1: icmp_seq=1 ttl=64 time=8.47 ms

--- 10.2.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 8.471/8.471/8.471/0.000 ms

Step 8: Run command vpn ipsec show sa at DUT0 and expect this output:

Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 642196cd0643f4b1_i f879b76543bd75bf_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 1s ago, rekeying in 27865s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3264s, expires in 3959s
    in  c3bdb285,     84 bytes,     1 packets,     0s ago
    out cf0bf9ef,     84 bytes,     1 packets,     0s ago
    local  10.1.0.0/24
    remote 10.3.0.0/24
  peer-PEER-tunnel-2: #2, reqid 2, INSTALLED, TUNNEL, ESP:AES_GCM_16-256/ECP_256
    installed 1s ago, rekeying in 3339s, expires in 3959s
    in  cabe6bc6,     84 bytes,     1 packets,     0s ago
    out ce8f5e17,     84 bytes,     1 packets,     0s ago
    local  10.2.0.0/24
    remote 10.3.0.0/24

Attention

The command vpn show ipsec policy can be used to debug the IPSec selectors that have been installed in OSDx devices. Example for device DUT0:

Show output
src 10.2.0.0/24 dst 10.3.0.0/24 dev TUNNEL2
        dir out priority 375421
        tmpl src 80.0.0.1 dst 80.0.0.2
                proto esp spi 0xce8f5e17 reqid 2 mode tunnel
src 10.3.0.0/24 dst 10.2.0.0/24
        dir fwd priority 375423
        tmpl src 80.0.0.2 dst 80.0.0.1
                proto esp reqid 2 mode tunnel
src 10.3.0.0/24 dst 10.2.0.0/24
        dir in priority 375423
        tmpl src 80.0.0.2 dst 80.0.0.1
                proto esp reqid 2 mode tunnel
src 10.1.0.0/24 dst 10.3.0.0/24 dev TUNNEL1
        dir out priority 375421
        tmpl src 80.0.0.1 dst 80.0.0.2
                proto esp spi 0xcf0bf9ef reqid 1 mode tunnel
src 10.3.0.0/24 dst 10.1.0.0/24
        dir fwd priority 375423
        tmpl src 80.0.0.2 dst 80.0.0.1
                proto esp reqid 1 mode tunnel
src 10.3.0.0/24 dst 10.1.0.0/24
        dir in priority 375423
        tmpl src 80.0.0.2 dst 80.0.0.1
                proto esp reqid 1 mode tunnel
src 0.0.0.0/0 dst 0.0.0.0/0
        socket in priority 0
src 0.0.0.0/0 dst 0.0.0.0/0
        socket out priority 0
src 0.0.0.0/0 dst 0.0.0.0/0
        socket in priority 0
src 0.0.0.0/0 dst 0.0.0.0/0
        socket out priority 0
src ::/0 dst ::/0
        socket in priority 0
src ::/0 dst ::/0
        socket out priority 0
src ::/0 dst ::/0
        socket in priority 0
src ::/0 dst ::/0
        socket out priority 0