![palo alto networks vpn between srx and palo alto networks vpn between srx and](https://blog.michaelfmcnamara.com/wp-content/uploads/2020/03/GP-AuthenticationProfile-1.png)
OSPF must be enabled for both the internal LAN interface (which in this case is actually just a loopback pretending to be a /24 network) and the tunnel interface. So how do we communicate this information among peers? With a routing protocol, of course! Just about any routing protocol will do we'll use single-area OSPF for this lab. O - ODR, P - periodic downloaded static routeĬ 172.17.0.0 is directly connected, FastEthernet0/1Ĭ 172.16.0.0 is directly connected, FastEthernet0/0Ĭ 10.0.1.0 is directly connected, Loopback1Ĭ 192.168.0.0 is directly connected, Tunnel0Īlso unlike policy-based VPNs, the SAs for a route-based VPN are constructed automatically and maintained indefinitely whether or not traffic is passing across the VPN.ġ72.17.0.5 172.17.0.1 QM_IDLE 4004 ACTIVEġ72.16.0.3 172.16.0.1 QM_IDLE 4003 ACTIVEĪs just mentioned, route-based VPNs have no mechanism to automatically discover the remote networks which are reachable over the VPN. Ia - IS-IS inter area, * - candidate default, U - per-user static route I - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2Į1 - OSPF external type 1, E2 - OSPF external type 2 Notice that, unlike our policy VPN configuration, the peer LAN (10.0.5.0/24) is not automatically injected by the VPN because there is no policy to tell the router what exists on the other side of the tunnel:Ĭodes: C - connected, S - static, R - RIP, M - mobile, B - BGPĭ - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area Tunnel protection ipsec profile Routed_VPN The last two lines of the configs below apply IPsec to the tunnel interface using the IPsec profile we defined in the previous step. The tunnel source and destination addresses are defined as the local and remote outside router IP addresses, respectively. We'll use the 192.168.0.0/30 network for our VPN tunnel.
![palo alto networks vpn between srx and palo alto networks vpn between srx and](https://www.letsconfig.com/wp-content/uploads/2019/06/How-to-configure-Route-based-IPSec-VPN-on-Juniper-SRX.png)
(Here's a way to visualize this concept if it's a bit fuzzy.) Tunnel interfaces serve to encapsulate/encrypt egressing traffic and decapsulate/decrypt ingressing traffic. We need to create a routed tunnel interface on both routers to act as the logical VPN edge. Now we get into the meat of the VPN configuration. (For our purposes, we only need to reference a single transform-set, so it probably appears redundant.) Create the IPsec profile on both R1 and R5. We need to create an IPsec profile, which serves as a wrapper around one or more transform-sets and other parameters to be used in the construction of IPsec SAs. R1 and R5Ĭrypto ipsec transform-set ESP-AES256-SHA1 esp-aes 256 esp-sha-hmacĪt this point we start doing things a bit differently. We can also re-use the IPsec transform-set defined on R1. (R1 will now have two ISAKMP profiles, R1_to_R3 and R1_to_R5.) R1 Create a new ISAKMP profile on both R1 and R5 to match the peer IP address to the pre-shared key keyring. We can also re-use the ISAKMP policy we created on R1 in part one just remember to apply it to R5. Pre-shared-key address 172.17.0.1 key AnotherSecretKey Pre-shared-key address 172.17.0.5 key AnotherSecretKey Pre-shared-key address 172.16.0.3 key MySecretKey
![palo alto networks vpn between srx and palo alto networks vpn between srx and](https://weberblog.net/wp-content/uploads/2013/11/PA-00-Security-Policy-IKE-IPsec.png)
![palo alto networks vpn between srx and palo alto networks vpn between srx and](https://help.zscaler.com/downloads/zia/documentation-knowledgebase/forwarding-your-traffic/ipsec/ipsec-configuration-guide/ipsec-vpn-configuration-example-palo-alto-networks-appliance/ethernet_tab_in_the_palo_alto_networks_web_interface_0.png)
On R5, create a new keyring and key for R1. On R1, we can re-use the keyring we defined in part one and simply add a new key for R5. Route-based VPNs don't rely on an explicit policy (access list) to match traffic, so we can skip that step and start by creating a pre-shared key. In this second part, we'll look at configuring a route-based VPN on IOS and then examine some important differences between the two approaches. Make sure to read through part one before continuing if you haven't already. This article is a continuation of our discussion regarding policy-based versus route-based VPNs.