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/sitetosite4.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 global-secrets ike-psk %any encrypted-secret U2FsdGVkX1/fQbMxwVacav1oUQJi2BjhiZw6fGeaiF8=
set vpn ipsec auth-profile AUTH-SA local 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 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 global-secrets ike-psk %any encrypted-secret U2FsdGVkX1/id3ThEuUzr+ilkyAd4WBveAWzM954UUQ=
set vpn ipsec auth-profile AUTH-SA local 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 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=0.213 ms

--- 80.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.213/0.213/0.213/0.000 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=0.228 ms

--- 80.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.228/0.228/0.228/0.000 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, c6c7d0a5fbe79596_i b10e87131cf850e6_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 21608s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3381s, expires in 3959s
    in  cbd1529c,      0 bytes,     0 packets
    out c7c58120,      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=0.337 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 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, c6c7d0a5fbe79596_i b10e87131cf850e6_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 21608s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3381s, expires in 3959s
    in  cbd1529c,     84 bytes,     1 packets,     1s ago
    out c7c58120,     84 bytes,     1 packets,     1s 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 0xc7c58120 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 global-secrets ike-psk %any encrypted-secret U2FsdGVkX1+RtkxxtHx+4RKHMOUp8T5EIlxaNh5G8Pk=
set vpn ipsec auth-profile AUTH-SA local 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 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 global-secrets ike-psk %any encrypted-secret U2FsdGVkX19hzcATVRgPnKAaiTYHRLA9K+sW4AwBYHE=
set vpn ipsec auth-profile AUTH-SA local 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 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=0.243 ms

--- 80.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.243/0.243/0.243/0.000 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=0.271 ms

--- 80.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.271/0.271/0.271/0.000 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, 0871d30b207bb299_i 0857112ef9f2ccee_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 24724s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 0s ago, rekeying in 3461s, expires in 3960s
    in  c1e6df7f,      0 bytes,     0 packets
    out cb0b0e85,      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 3344s, expires in 3960s
    in  c79b2eef,      0 bytes,     0 packets
    out c198575f,      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=0.266 ms

--- 10.1.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.266/0.266/0.266/0.000 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=0.297 ms

--- 10.2.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.297/0.297/0.297/0.000 ms

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

Show output
vpn-peer-PEER: #1, ESTABLISHED, IKEv2, 0871d30b207bb299_i 0857112ef9f2ccee_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 24723s
  peer-PEER-tunnel-1: #1, reqid 1, INSTALLED, TUNNEL, ESP:AES_GCM_16-256
    installed 1s ago, rekeying in 3460s, expires in 3959s
    in  c1e6df7f,     84 bytes,     1 packets,     1s ago
    out cb0b0e85,     84 bytes,     1 packets,     1s 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 3343s, expires in 3959s
    in  c79b2eef,     84 bytes,     1 packets,     1s ago
    out c198575f,     84 bytes,     1 packets,     1s 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 0xc198575f 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 0xcb0b0e85 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