Multi-Selector

This scenario shows how to configure a global VPN IPSec policy with multiple network prefixes.

Test Site-To-Site With Multiple Network Prefixes

Description

Simple VPN site-to-site configuration to connect two subnets. Both devices specify multiple network prefixes for the VPN tunnel.

Scenario

Step 1: Set the following configuration in DUT1:

set interfaces eth0 address 80.0.0.2/24
set vpn ipsec auth-profile AUTH-SA local auth pre-shared-secret test
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 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 remote prefix 10.1.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.2.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 local-interface dum0
set interfaces dum0 address 10.3.0.1/24
set protocols static route 0.0.0.0/0 interface dum0
set vpn ipsec site-to-site peer PEER connection-type respond
set vpn ipsec esp-group CHILD-SA mode tunnel

Step 2: Set the following configuration in DUT0:

set interfaces eth0 address 80.0.0.1/24
set vpn ipsec auth-profile AUTH-SA local auth pre-shared-secret test
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 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 prefix 10.2.0.0/24
set vpn ipsec site-to-site peer PEER tunnel 1 remote prefix 10.3.0.0/24
set interfaces dum0 address 10.1.0.1/24
set interfaces dum1 address 10.2.0.1/24
set protocols static route 0.0.0.0/0 next-hop 80.0.0.2
set vpn ipsec site-to-site peer PEER connection-type initiate
set vpn ipsec esp-group CHILD-SA mode tunnel

Step 3: Ping IP address 80.0.0.1 from DUT1:

admin@DUT1$ ping 80.0.0.1 count 1 size 56 timeout 1

Step 4: Ping IP address 80.0.0.2 from DUT0:

admin@DUT0$ ping 80.0.0.2 count 1 size 56 timeout 1

Step 5: Run command vpn ipsec show sa at DUT0 and check if output contains the following tokens:

10.1.0.0/24 10.2.0.0/24

Step 6: Run command vpn ipsec show sa at DUT1 and check if output contains the following tokens:

10.1.0.0/24 10.2.0.0/24

Step 7: Ping IP address 10.3.0.1 from DUT0:

admin@DUT0$ ping 10.3.0.1 local-address 10.1.0.1 count 1 size 56 timeout 1

Step 8: Ping IP address 10.3.0.1 from DUT0:

admin@DUT0$ ping 10.3.0.1 local-address 10.2.0.1 count 1 size 56 timeout 1

Step 9: Run command vpn ipsec show sa at DUT0 and check if output matches the following regular expressions:

[1-9]\d? packets

Step 10: Run command vpn ipsec show sa at DUT1 and check if output matches the following regular expressions:

[1-9]\d? packets

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: