Fortigate ipsec routing


  • How to create a Site to Site IPSec VPN from an OpnSense to a Fortigate behind a NAT Router.
  • Internet Through IPSEC Tunnel
  • How to Create a GRE Tunnel within FortiGate
  • Weberblog.net
  • How to configure IPSec VPN between Palo Alto and FortiGate Firewall
  • AWS or GCP IPSec Tunnels with BGP routing on a FortiGate software version 6.x
  • Fortigate Site to Site VPN Lab
  • How to create a Site to Site IPSec VPN from an OpnSense to a Fortigate behind a NAT Router.

    Here, you need to provide the Name for the Security Zone. You can provide any name as per your convenience. Select the Virtual Router, default in my case. Also, in Security Zone filed, you need to select the security zone as defined in Step 1. Also, you can attach Management Profile in Advanced Tab if you need it. Here, you need to give a friendly name for the IKE Crypto profile.

    By default, Key lifetime is 8 Hours. You can change it as per your requirement. Here, you need to give a friendly name for the IPSec Crypto profile. Select the IPsec Protocol as per your requirement. By default, Key lifetime is 1 Hour. Define the peer address, in my case Select the Authentication Method, i.

    Pre Shared Key or Certificate. Define the Pre Shared key next and note down the key because you need it to define in FortiGate Firewall. Now, we have to define the IPSec Tunnel. Define the user-friendly name for IPSec Tunnel. Next, select the tunnel interface, which defined in Step 2. Select the Name for this Route and define the destination network for this route, i. Although, the configuration of the IPSec tunnel is the same in other versions also. Therefore, we need to create a custom tunnel.

    Scroll down the page, and in the Authentication field, select the authentication method Pre-Shared Key and Provide the exact same key here as shown in the below image.

    Now, you need to configure the IPSec tunnel Phase 1. You need to configure the same parameters here as shown in the screenshot. Scroll down the Page and edit Phase 2 Selectors. In my scenario, I just want connectivity between both LANs. These parameters must be the same as Palo Alto firewall Phase 2. Configuring Static Route for IPSec Tunnel Now, you need to add a static route for the remote subnet in the FortiGate firewall routing table, so that traffic can be sent and receive through this tunnel.

    Just define the remote subnet Port3 in my case. Allow the traffic you want to allow from this tunnel. If you need to send and recevie traffic to remote location, you need one more security policy. Now we need to initiate the tunnel. Related Articles.

    Internet Through IPSEC Tunnel

    Remote users can access the private network behind the local FortiGate unit and browse the Internet securely. All traffic generated remotely is subject to the security policy that controls traffic on the private network behind the local FortiGate unit. The following topics are included in this section: Configuration overview Routing all remote traffic through the VPN tunnel Configuration overview A VPN provides secure access to a private network behind the FortiGate unit.

    You can also enable VPN clients to access the Internet securely. The FortiGate unit inspects and processes all traffic between the VPN clients and hosts on the Internet according to the Internet browsing policy. This is accomplished even though the same FortiGate interface is used for both encrypted VPN client traffic and unencrypted Internet traffic.

    Example Internet-browsing configuration You can adapt any of the following configurations to provide secure Internet browsing: A gateway-to-gateway configuration see Gateway-to-gateway configurations on page 1 l A FortiClient dialup-client configuration see FortiClient dialup-client configurations on page 1 l A FortiGate dialup-client configuration see FortiGate dialup-client configurations on page 1 The procedures in this section assume that one of these configurations is in place, and that it is operating properly.

    To create an internet-browsing configuration based on an existing gateway-to-gateway configuration, you must edit the gateway-to-gateway configuration as follows: On the FortiGate unit that will provide Internet access, create an Internet browsing security policy.

    See Configuration overview on page , below. See Configuration overview on page Creating an Internet browsing security policy On the FortiGate unit that acts as a VPN server and will provide secure access to the Internet, you must create an Internet browsing security policy. This policy differs depending on whether your gateway-to-gateway configuration is policy-based or route-based.

    Enter the following information and then select OK: Name Enter an appropriate name for the policy. Source The internal range address of the remote spoke site.

    Select Allow traffic to be initiated from the remote site. Outgoing Interface The interface that connects to the Internet. The virtual IPsec interface is configured on this physical interface. Destination Address.

    How to Create a GRE Tunnel within FortiGate

    Weberblog.net

    The following topics are included in this section: Configuration overview Routing all remote traffic through the VPN tunnel Configuration overview A VPN provides secure access to a private network behind the FortiGate unit. You can also enable VPN clients to access the Internet securely.

    The FortiGate unit inspects and processes all traffic between the VPN clients and hosts on the Internet according to the Internet browsing policy. This is accomplished even though the same FortiGate interface is used for both encrypted VPN client traffic and unencrypted Internet traffic.

    How to configure IPSec VPN between Palo Alto and FortiGate Firewall

    Example Internet-browsing configuration You can adapt any of the following configurations to provide secure Internet browsing: A gateway-to-gateway configuration see Gateway-to-gateway configurations on page 1 l A FortiClient dialup-client configuration see FortiClient dialup-client configurations on page 1 l A FortiGate dialup-client configuration see FortiGate dialup-client configurations on page 1 The procedures in this section assume that one of these configurations is in place, and that it is operating properly.

    To create an internet-browsing configuration based on an existing gateway-to-gateway configuration, you must edit the gateway-to-gateway configuration as follows: On the FortiGate unit that will provide Internet access, create an Internet browsing security policy. If it were not Fortigate to Fortigate, you would of course have to define each local and remote network pair individually in the phase 2 settings. No next hop is specified in this configuration once the tunnel device is selected.

    A unique combination of events and circumstances resulted in an odd situation developing: A group of staff were moved from the central office to the remote office. They used web-based applications which were written to behave differently for users coming from a central office IP range. The pre-existing remote office users should continue to access the apps via public internet, or more importantly, not private network space, since that would result in the apps behaving in a way they should not see.

    So, what to do.

    AWS or GCP IPSec Tunnels with BGP routing on a FortiGate software version 6.x

    Well, moving the central office team, moving their private network and keeping their access to the web apps as if they had not even moved was the easy part. Delete Create a VLAN for them at the remote office, create router interface, put their specific VPN already exists between the two sites so no creation of a tunnel is needed VPN is Fortigate to Fortigate so no adjustment or addition of IKE phase 2 networks is needed Add a policy entry on remote office Fortigate saying traffic coming from the relevant interface, whether it be physical or vlan, from Add a policy entry on central office Fortigate saying traffic coming in from interface Site2SiteVPN, source address Here, you need to provide the Name for the Security Zone.

    You can provide any name as per your convenience. Select the Virtual Router, default in my case. Also, in Security Zone filed, you need to select the security zone as defined in Step 1.

    Fortigate Site to Site VPN Lab

    Also, you can attach Management Profile in Advanced Tab if you need it. Here, you need to give a friendly name for the IKE Crypto profile.

    By default, Key lifetime is 8 Hours. You can change it as per your requirement. Here, you need to give a friendly name for the IPSec Crypto profile. Select the IPsec Protocol as per your requirement. By default, Key lifetime is 1 Hour.


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