Multiple phase 2 selectors fortigate string. Check your phase 2 selectors on the spokes. As the PiX firewall creates one SA (security association) per access-list entry and the FortiGate unit creates one SA per phase-2, the FortiGate must have a separate phase-2 entry for each access-list line in the PiX config (see below). config vpn ipsec phase2-interface Oct 21, 2017 · Phase 2 parameters define the algorithms that the FortiGate unit can use to encrypt and transfer data for the remainder of the session. Solution. Description. When I create a IPSec tunnel on the Fortigate, I use a group-object with all the local subnets from the Fortigate as the local-network at the phase 2 selectors. When using a route-based IPsec VPN configuration, Phase 2 or quick-mode selectors must be defined with internal/protected subne Feb 18, 2021 · 1. With the ‘initiator-ts-narrow’ setting enabled, FortiGate-1 will now send the following subnets in the phase2 negotiation when traffic triggers an IPsec tunnel to come online: Sep 5, 2023 · "Create Phase2 by Protected Subnet Pair" option typically auto-generates Phase 2 selectors (also called traffic selectors or Proxy IDs) based on pairs of local and remote subnets that you want to pass through the VPN tunnel. We share a whole subnet while they only share 3 specific IPs. I understand in some case it requires to use 0. Oct 16, 2019 · the changes in ipsec monitor page in 5. phase1) rather than the individual phase2s. The following options are available in the VPN Creation Wizard after the tunnel is created: By also enabling the addition of a route to the peer destination selector (add-route) in the phase 1 configuration, IKE routes based on the phase 2 selectors can be injected. Add a new phase 2 selector. It didn't affect any other VPN tunnels or traffic, just the dynamic peers; guessing due to route cache. Apr 17, 2025 · This article describes how to confirm a Phase 2 Selectors mismatch configuration when there is no access to the peer device. Group all your subnets into the one object then use that group in your routing table, policies and phase 2 settings. In most cases, you need to configure only basic Phase 2 settings. Feb 7, 2024 · we have a fortigate vm with a ipsec tunnel. Follow the steps below for both methods: Jan 23, 2014 · I am having a VPN issue between a ASA and a Fortigate. We are connecting towards a Palo Alto using IKE v2 and have three phase 2 selectors. Normally, phase 2 would just be 0. patre When phase 2 has auto-negotiate enabled, and phase 1 has mesh-selector-type set to subnet, a new dynamic selector will be installed for each combination of source and destination subnets. 0/0. Adjusting the object automatically Phase 2 Selectors were adjusted having only one there! Depends on where your VPN is connecting to. Solution This issue arises when no Phase-2 selector is configured in the IPSec tunnel. I have then re-setup completely my VPN without using groups, but instead, multiple phase 2 (total of 24, one per subnet) under the same phase 1 : now the VPN is working without any issue. Apr 29, 2010 · After multiple VPN restarts on both ends, the FG started to provide some interesting logs (IIRC " Failed to insert SA : invalid argument" ). Solution: In v6. Why is that? Thanks and regards, Konsta The phase 2 selector for 10. 0/0 each time a VPN came up. The following options are available in the VPN Creation Wizard after the tunnel is created: Oct 16, 2016 · During Phase 2, you select specific IPsec security associations needed to implement security services and establish a tunnel. Within FortiGate to add communication on the WIFI networks we configured the phase 2 selector but need to add that subnet in AWS somewhere. Within the phase 2 we have something like this, 3 times FortiGate. 0 defined for the local subnet on them, which is a no-go for this configuration. In the example above the first Phase 2 selector and the third one have the same remote and local subnet. 4 onwards. When the tunnel is configured at both ends, the fortigate lists the IPSec tunnel, but the phase 2 tunnel is not up all the way. 4. The following options are available in the VPN Creation Wizard after the tunnel is created: Nov 6, 2023 · This is due to FortiGate uses the same SPI value to bring up the phase 2 negotiation for all of the subnets, while the Cisco ASA expects different SPI values for each of its configured subnets. Jan 29, 2025 · This article describes how to bring up specific phase 2 selectors or all selectors of IPSec VPN via GUI. x) bound for 192. Select the required custom configuration, and click OK to save the changes to the phase 2 The basic phase 2 settings associate IPsec phase 2 parameters with the phase 1 configuration that specifies the remote end point of the VPN tunnel. If you're going to a different vendor, in my experience you'll likely need to create Phase 2 Selectors for each possible combination. If the FortiGate unit is a dialup server, the default value 0. If I bring UP another Phase, then 1 of the 4 current UP will be replaced with DOWN status. For example: Phase 2, defined below, allows traffic between 192. May 18, 2018 · I have this same Issue, everything seems to be correctly configured, outgoing and incomming policies, static route, ike, encryption and DS groups on both FG devices. You can also use phase2 to add or edit IPsec tunnel-mode phase 2 configurations to create and maintain IPsec VPN tunnels with a remote VPN gateway or client peer. Jan 24, 2013 · You need multiple phase2 selectors or the FortiGate firewall will try to use the same SA for multiple subnets instead of creating a new SA. 0, 7. Solution: Start capture and enable filters under GUI -> Network -> Diagnostics -> Packet Captures. I believe that the issue is on the Fortigate side, but some things on the ASA give me pause. Use this command to add a phase 2 configuration for a route-based (interface mode) IPSec tunnel or edit an existing interface-mode phase 2 configuration. It results in only one subnet working at a time. . Oct 21, 2024 · This article explains how to add an IPSec phase 2 selector when FortiGate is giving error: '-56 empty values are not allowed'. But when I try to bring up phase 2 selectors, it pretty much does nothing but keep successfully negotiating phase 1. Phase 1 determines the options required for phase 2. This command is only available in NAT mode. Nov 23, 2024 · When checked under references for this IPSec tunnel, the concerned Phase 2 selector shows up, but that Phase 2 selector is slightly towards right-hand side: If that is the case, then that Phase 2 selector is repetitive. These selectors specify which traffic will be encrypted and sent through the tunnel. At the IPSEC Monitor though I see two phase 2 selectors. 0 instead x. During Phase 2 selectors you have the next option to configure the source and destinations. Make sure the quick mode selector defined in Phase2 is configured properly to allow the traffic flow, which is having the issue. At the end of the article you will have a working VPN with remote sites able to communicate using multiple subnets. x or 192. You can configure a wide subnet on your tunnel. Apr 6, 2025 · When a Sonicwall unit has multiple subnets configured, multiple phase 2's must be created on the FortiGate, and not just multiple subnets in a single Phase 2 selector. This is because the FortiGate uses the same SPI value to bring up phase 2 for all of the subnets, while the Sonicwall expects different SPI values for each of its configured subnets. 0/24) and Remote Address (10. Also via snmp we get information for two phase 2 selectors with the same name. 6 and above firmware versions. The following options are available in the VPN Creation Wizard after the tunnel is created: In the Phase 2 Selectors section, enter the subnets for the Local Address (10. Scope: FortiGate, Cisco, or any other vendor, an IPsec VPN environment. Click OK . Make sure you have the actual local subnet defined and it should work. We tried to recreate phase 2, reboot the fortigate and recreate the complete ipsec tunnel. This print server can communicate with anything that is hardwired but we have our WIFI networks on a different subnet. Phase 2 parameters define the algorithms that the FortiGate unit can use to encrypt and transfer data for the remainder of the session. Maximum length: 35. Is it better to have broader range Redirecting to /document/fortigate-7000/6. To change Security Associations in Phase 1 and Phase 2 of IPsec tunnel: Go to VPN > VPN Tunnels, and edit the IPsec tunnel. 0. The tunnel is up, but in the IPsec Monitor it shows the phase 2 selector twice (same name, one up, one down). e. The basic Phase 2 settings associate IPsec Phase 2 parameters with a Phase 1 configuration. The following options are available in the VPN Creation Wizard after the tunnel is created: The basic phase 2 settings associate IPsec phase 2 parameters with the phase 1 configuration that specifies the remote end point of the VPN tunnel. Solution: To add a new subnet in the phase2 selector of a custom tunnel, there are 2 approaches: If the phase 2 selector is specified as a named address, a group of addresses adds a new subnet to the existing group if a separate/another phase 2 selector is not wished. 8. Dec 13, 2022 · Hi Firewall Gurus, I'm looking for best practice for the phase 2 selector subnets in a general case. 0/16 phase 2 selector uses AES256 and SHA384 In theory there is also the benefit that the lower encryption level requires less processing, although in practice if you are relying on reducing the encryption on some of your VPN tunnels to get better overall Nov 28, 2016 · how, when a FortiGate is behind an ISP that provides a dynamic IP address via DHCP or PPPoE, it is necessary to use an IPsec VPN dial-up client configuration on that device. In my configuration traffic from the ASA (172. Some settings can be configured in the CLI. Jun 27, 2019 · After IPsec VPN Phase 1 negotiations complete successfully, Phase 2 negotiation begins. ASAs don’t support single phase 2 child SAs with multiple selectors in them, and require that each selector be in its own child SA, but ASAs support route-based VPNs as of 9. phase1name. Apr 23, 2024 · If you want to add more subnets in your tunnel you need to configure multiple phase 2 on FortiGate. FortiOS 7. Jun 2, 2016 · The basic phase 2 settings associate IPsec phase 2 parameters with the phase 1 configuration that specifies the remote end point of the VPN tunnel. 10. The following options are available in the VPN Creation Wizard after the tunnel is created: You can edit the phase 2 VPN to use an object group. Below is the way to configure each of these options: May 6, 2011 · The phase 2 selectors are mandatory on the FortiGate-7000 and are used to make sure that all IPsec VPN traffic is sent to the primary (master) FPM. dhcp-ipsec. 0/24 and 192. However this VPN has the local and remote subnets configured in the phase 2. Size. Or use the route base VPN method as mentioned by another user. 1. This is the status of the 10 Phase 2 Selectors. 0/0 for remote and destination between 2 FortiGate's that I manage. I'm gonna guess you have 0. Enable/disable DHCP-IPsec. The following options are available in the VPN Creation Wizard after the tunnel is created: That’s not true at all. Only one phase1 is required though. As you can see, only 4 can UP at the same time. Phase 2 is no security: the latter is defined and achieved with your firewall policy ruleset. Optionally specify the source and destination IP addresses to be used as selectors for IKE negotiations. No need to add any routes on the Fortigate as the route is directly connected. Scope . ScopeFortiGate. After IPsec VPN Phase 1 negotiations complete successfully, Phase 2 negotiation begins. 2 and 7. Is there any misconfiguration in my setting or this is the limit of the device (Fortigate 100D)? This is the 10 Phase 2 Selectors in VPN setting. 0/22 has Enc: AES128 and Auth: SHA256 and 10. x goes to the Fortigate via a ipsec VPN. 0). Jul 23, 2023 · In this blog, we are going to take a look at how you can configure IPsec vpn between two FortiGate firewalls with multiple subnets. This article describes the multiple options to configure phase2 selectors on VPN IPsec. Type. 128, so FGT Remote set the original Phase 2 Selectors DOWN creating automatically another Phase 2 Selector excluding the wrong network. Use the following command to add phase 2 selectors. I have faced issues in the past with FortiGate-to-3rd party VPN that when you use address groups in the phase2-selector, the tunnel was being unstable. Parameter. Checkpoint is policy based, Fortigate is route based. Cheers, Sep 21, 2023 · Problem solved! Destination Address mismatch between FGTs where we had x. The inside network f Jun 2, 2012 · The basic phase 2 settings associate IPsec phase 2 parameters with the phase 1 configuration that specifies the remote end point of the VPN tunnel. Nov 10, 2004 · - Remote subnets (or hosts) are defined in the Fortigate as an Address Group (192. If you're doing Fortigate to Fortigate, you can create one Phase 2 Selector and use address groups containing all your subnets. When phase 2 has auto-negotiate enabled, and phase 1 has mesh-selector-type set to subnet, a new dynamic selector will be installed for each combination of source and destination subnets. Under Phase 2 Selectors, select the phase 2 tunnel, and click Edit. 168. To me it sounds like an issue on the other end, as the other redditor suggested that weird vendors eventually only support a limited number of phase 2 selectors. Set Remote Subnets to include the internal subnet for FGT When phase 2 has auto-negotiate enabled, and phase 1 has mesh-selector-type set to subnet, a new dynamic selector will be installed for each combination of source and destination subnets. Aug 15, 2017 · Since Phase 2 selectors are set to all zeroes, and add-route is enabled by default for a dynamic peer, the hub firewall was adding a static route for 0. The basic Phase 2 settings associate IPsec Phase 2 parameters with the Phase 1 configuration that specifies the remote end point of the VPN tunnel. DevOps & SysAdmins: FortiGate IPsec VPN: Configuring Multiple Phase 2 Connections (Multiple Subnets)Helpful? Please support me on Patreon: https://www. 7 code. **If FortiGate to FortiGate IPsec VPN, you can use groups. 0/24). Each dynamic selector will inherit the auto-negotiate option from the template selector and begin SA negotiation. Scope: FortiGate v6. The following options are available in the VPN Creation Wizard after the tunnel is created: For this example AWS1 and AWS2 are the tunnels. Under Phase 1 proposal, select required custom configuration. 3/fortigate-7000-handbook. **If FortiGate to other firewall brand IPsec VPN, do it individually. Optionally, expand Advanced and enable Auto-negotiate . 0/0 should be kept unless you need to circumvent problems caused by ambiguous IP addresses between one or more of the private networks making up the VPN. Jun 16, 2022 · Hello, I have set up a custom S2S VPN At the Phase 2 Selectors I have configured "Named Address" objects with groups The local group contains 2 IPs, and the remote contains a subnet and 2 IPs. Only one subnet is listed up and the other subnets are down. SolutionExecute the CLI comm Use phase2-interface to add or edit a phase 2 configuration on a route-based (interface mode) IPsec tunnel. 2, it is mandatory to go to Monitor -> IPsec Monitor to bring up the phase 2 selector of IPsec VPN via GUI as shown in the screenshot below. 6 and above the design was changed to show the status of the tunnel (i. If possible, change the VPN to use only one selector (0. 2. 30. Depending on what you are connecting to might affect which method works best This setting needs to be enabled on the FortiGate with the single phase2 selector configured, not the FortiGate with multiple independent phase2 selectors configured. If you don't want this. This means that routes do not need to be reflected on the hub to propagate them between spokes, avoiding possible BGP daemon process load issues and improving network Jun 2, 2015 · The basic phase 2 settings associate IPsec phase 2 parameters with the phase 1 configuration that specifies the remote end point of the VPN tunnel. 0/24. I'm talking about in decent network segmentation internal network that connects to outside. Apr 23, 2024 · When I create a IPSec tunnel on the Fortigate, I use a group-object with all the local subnets from the Fortigate as the local-network at the phase 2 selectors. Adding the Phase-2 selector by selecting the edit button shows In the Phase 2 Selectors section, enter the subnets for the Local Address (10. The basic phase 2 settings associate IPsec phase 2 parameters with the phase 1 configuration that specifies the remote end point of the VPN tunnel. This command is available only in NAT/Route mode. Currently VPN phase2 status in line view has been removed from VPN IPsec monitor. x. In 5. vkqwna ootuv eicgk kmbklcio zmqn pbmc zkse bdxysga fmnoq iglm