Within this example we will build a Route Based VPN between 2 SPLAT R65 NGX Check Point Firewalls. Static Routes will used to direct the traffic via the VPN Tunnel Interfaces. In this example both Firewalls are managed by the same manager. SRX Series,vSRX. Understanding Traffic Selectors in Route-Based VPNs, Example: Configuring Traffic Selectors in a Route-Based VPN.
Route Based Vpn Cisco
Specifically we want to create VPNs between the 3 networks connected to the Checkpoint and a remote 3rd party server connected to the SRX (192.168.40.50).We only want to permit ssh.The server will always be the destination for connections. In our scenario the SRX is ours as well so we will have to manage it over the VPN.The Checkpoint is R75.47 GAIA and the SRX is 210HE running 12.1X45-D15.5.Checkpoints are more commonly configured with policy based VPNs though they can do route based as well. For SRXs it’s the opposite way. So in this lab we will make the Checkpoint happy by doing policy based VPN. We will therefore expect to see a pair of IPSEC SAs for each src/dst network pair. A) Check Basic Connectivity (Setup routing)As it’s a lab environment the first thing I do is make sure that the sources have connectivity to the destination by SSHing to the server without the VPN in place.
This tells me I have all the necessary routes I need correctly set.GAIA static route.set static-route default nexthop gateway address 10.1.1.9 onOr course in the real world you often don’t have the luxury as your dealing with 3rd parties. Still, get your routing done as best you can.b) Define Encryption DomainAs all the networks behind the Checkpoint need to access the remote server over the VPN, all 3 networks need to be in the encryption domain.Here is the encryption domain group object. SRX Policy notes.1) Because we are the receiving end we need policies in both directions.As you can see we have logging on all the rules, however looking in our logs (not shown) we see that only the SERVERACCESSIN rules get matches so you might think you only need those rules. You need the SERVERACCESSOUT rules too.If you remove the SERVERACCESSIN rule but leave the SERVERACCESSOUT rule, phase 2 will come up but the SSH session will not workIf you remove the SERVERACCESSOUT rule but leave the SERVERACCESSIN rule then the SSH connection will not work and phase 2 will not come up.So what can we discern from this.SERVERACCESSOUT.This rule is the opposite of the Checkpoint rule and so is used to negotiate phase 2 identities. In our case its being used for return traffic so we need to say application 'any'.SERVERACCESSIN.Needed as the connection is coming from this direction (Into the Trust interface) and so we can use this policy to control the allowed application(s) if we wanted to, in the same way the Checkpoint policy is limiting the connections over the VPN to SSH only.2) Pair-PolicyYou may have come across this feature used to link 2 policies together to allow for a bi-directional VPN. In our case we are only initiating from one side so its not necessaryThe below link describes really well why it may be needed.Checkpoint Policy notes.As we are initiating the connection through the Checkpoint and as no connections will be initiated back to us we simply write the rule in the direction shown.
I was recently designing an Azure Hybrid Cloud implementation and was asked some questions regarding Azure routing that I had to research. The questions were something like“Why can my Cisco ASA only establish a Static Routing VPN connection to Azure?”“My Cisco ASA can route dynamically so why can we only create a static routing VPN?”Using a Static-Routing gateway, when establishing a VPN connection, is limiting so the question is certainly valid. With Static Gateways you can’t use Point-to-Site (P2S) VPN, only 1 Site-to-Site (S2S) VPN connection is supported, and vNet to vNet isn’t supported.At the time the verbiage around the differences between a static-routing and dynamic-routing VPN connections in Azure wasn’t that clear, but this has been improved:When you create a site-to-site VPN, you’ll specify either a static, or dynamic gateway. Select the gateway type that is supported by your router and for the type of IPSec parameters and configuration that you require.
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The tables below show the supported configurations for both static and dynamic VPNs. If you plan to use a site-to-site configuration concurrently with a point-to-site configuration, you’ll need to configure a dynamic routing VPN gateway. Static routing VPNs – Static routing VPNs are also referred to as policy-based VPNs. Policy-based VPNs encrypt and route packets through an interface based on a customer-defined policy. The policy is usually defined as an access list. Static routing VPNs require a static routing VPN gateway.Note -, and are not supported with static routing VPN gateways.
Dynamic routing VPNs – Dynamic routing VPNs are also referred to as route-based VPNs. Route-based VPNs depend on a tunnel interface specifically created for forwarding packets. Any packet arriving on the tunnel interface will be forwarded through the VPN connection.