route based vpn cisco asa

Maybe I just have to shift the way I think about VPN tunnels to Azure. Step 1. Cisco ASA now supports Virtual Tunnels Interfaces (After version 9.7(1)). Firstly, the implementation of a Route-based VPN with an ASA 5505 requires the use of Traffic Policy Selectors. IKE SA created: 1/1 established: 1/1 time: 190/190/190 ms remote selector 0.0.0.0/0 255.255.255.255/65535. This way all the branches would not have to go through the WAN link with the main office to reach the Azure subnet. When using StackWise Virtual, What if I tell you that configuring a site-to-site VPN between Palo Alto and ASA is easier than you may, Overview Step 4. NAT exempt does not match when I choose outside physical interface as outgoing interface. Necessary cookies are absolutely essential for the website to function properly. Description. peer-auth: no Especially working with public clouds such as AWS or Azure, you definitely want to go with a route-based VPN as it already supports dynamic routing (BGP) inside the tunnel. Configuration of VPN Between R1 and R2. Register . As we know, there is no preemption in IPsec site-to-site VPN on Cisco ASA to the primary peer. In my case, it is the FortiGate's IP address of 192.168.200.2 and the pre-shared key is fortigate. Cisco Asa Site To Site Vpn Nat Configuration , Vpn Downloaf, Vpn Pubg, Cyberghost 6 5 2 Ddl, Avis Forum Cyberghost, Nordvpn Can T Connect To Amazon, Utiliser Chromecast Avec Un Vpn . Enable IKEv1 on the outside interface. Note:Microsoft has published information that conflicts with regards to the particular IKEv2 phase 1encryption, integrity, and lifetime attributes used by Azure. Also, verify the output-interface is correct - it must be either the physical interface where the crypto map is applied or the virtual tunnel interface. You also have the option to opt-out of these cookies. For further clarification contact Microsoft Azure support. If there are no Subnets behind the ASA (everything is NATed), what should I enter on Azure side to address space field? the zone commands <- can be omitted if you arent using zones), or via classical CLI commands: (The ACL is omitted. Success! set interface port1 Also, from the main office I have a policy-based VPN tunnel with Azure from an ASA. ESP spi in/out: 0x75d65f1e/0x9f0257a9, main# ping 169.254.0.249 Hi Dave, no in the next sentence, I mention VTIs and tunnel groups. Note: If your outside interface is calledsomething else like Outside or WAN substitute that! Worked perfectly as expected. qat: 0 spi: 8185487b Apply the following to both ASA's: enable conf t sysopt connection tcpmss 1350 sysopt connection preserve-vpn-flows. Configured Site to Site IPsec VPN tunnels to peer with different clients and each of client having different specifications of Phase 1 and Phase 2 policies using Cisco ASA 5500 series firewalls. The attributes listed are provided best effort from, . This document from Microsoft describes the configuration of UsePolicyBasedTrafficSelectors in conjunction with Route-Based Azure VPN mode. interface: port1 3 replay: enabled The tunnel comes up but there is no data received on the FG side of the tunnel. Is it possible to setup an active-active azure vpn gateway with a single on-prem ASA? Verify no NAT translation occurs on the VPN traffic. Add the object to the Selected Networks section on the Network Objects window and click OK . Sign int0 Azure > All Services > Resource Groups > Create Resource Group > Give your Resource Group a name, and select a location > Create. This category only includes cookies that ensures basic functionalities and security features of the website. Of course that Gateway VPN Subnet is a mystery and it is hard to see what is actually taken on that subnet and what is available. For a site-to-site IKEv2 VPN on ASA with crypto maps, follow this configuration. It is also necessary to create appropriate ACLs on both ASAs to allow traffic from between local networks (192.168.10.0/24 for ciscolab-asa-01 and 192.168.20.0/24 for ciscolab-asa-02): The information that conflicts IKEv2 attribute from Microsoft is, protocol esp encryption {des | 3des | aes | aes-192 | aes-256 | aes-gcm | aes-gcm-192 | aes-gcm-256 | aes-gmac | aes-gmac-192 | aes-gmac-256 | null}, the particular phase 2 IPSec encryption and integrity attributes used by Azure. Choose the Encryption Domain/Traffic Selectors/Protected Networks. Pete, thanks for this great article. Personally Id use an SLA, but you go with what you know! Packetswitch Suresh Vina. set ike-version 2 Procedure: To manually configure a VPN Policy using IKE with Preshared Secret, follow the steps below: The below screen shot of SonicWall with basic configuration LAN and WAN. I did a packet input tracer (using their assigned private IPs) and it says blocked by implicit rule? Its like a GRE tunnel, see this post https://www.petenetlive.com/KB/Article/0000951 here Ive got the SAME IP on both ends of the tunnel and it still works. after reconfiguring Azure all broken. set remote-gw 1.1.1.1 Step 3. Create two objects that have the local and remote subnets and use them for both the crypto ACL and the NAT statements. Learn more about how Cisco is using Inclusive Language. Step 21. You may already have Resource Groups and Virtual Networks setup, if so you can skip the first few steps. Step 2: Configuring a VPN policy on Site B Cisco ASA Firewall Step 3: How to test this scenario. With Route-Based VPNs, you have far more functionality such as dynamic routing. dpd: on-demand/negotiated idle: 20000ms retry: 3 count: 0 Also i should add management-access outside command. Finally create the VPN > Select your Virtual Network Gateway > Connections > Add. Pete these are great articles you have posted. This command allow for Outside interface talk to net resources in Azure but this wont work for me. SHA-1 or MD5 are considered weak and not recommended to use in a production environment. Pete, one more thing your solution is very flexible! First, verify the correct version of IKE is triggered and that the ike-common process shows no relevant errors: If no ike-common debug output is seen when VPN traffic is initiated, this means traffic is dropped before it reaches the crypto process or crypto ikev1/ikev2 is not enabled on the box. For further clarification contact Microsoft Azure support. You can perform a capture on the outside interface to verify that encrypted packets are sent from ASA and encrypted responses are received from Azure. Step 5. ACL needed to allow traffic between local networks. I had an issue with encaps (=0) and decaps(=..) packets. Success rate is 0 percent (0/5) Step 20. Policy-based: mode: tunnel set keylifeseconds 3600 Your billing info has been updated. There are a few ASA commands that you can use to verify the tunnel status. First of all let's apply some good practice config's to make this tunnel a little more stable and perform better. These cookies will be stored in your browser only with your consent. Not sure about whether later version supports OSPF or EIGRP. Referencethis Cisco documentfor full ASA VTI configuration information. Child sa: local selector 0.0.0.0/0 255.255.255.255/65535 Ensure that you configure a policy-based tunnel in the Azure portal. Each site has its own Internet connection. An identical TS must be created on the remote end as well. Then i should choose outside interface. Route-based requires IKEv2 and policy-based requires IKEv1. Microsoft Azure supports route-based, policy-based, or route-based with simulated policy-based traffic selectors. It was a long-due release especially if you are working with multi-vendor VPNs. For additional configuration examples, see KB28861 - Examples - Configuring site-to-site VPNs between SRX and Cisco ASA . The first one drops the maximum segment size to 1350.The second command keeps the TCP session information even if the VPN tunnel drops. does this solve the problem on having Azure use On-Prem network for the internet? crypto-map vpnset 1 set peer 195.17.10.10 So when the ASA receives traffic from a 192.168.10.x client it checks this traffic against any crypto-map acls. tx packets: 5 bytes: 420 errors: 0 enc: aes-gc 25bac2347c208ddf5fe6b317bd8a670727bd041564cf0618951d3b31142d0f6c9f50b735 IPsec SA created: 1/1 established: 1/1 time: 0/0/0 ms, id/spi: 122 804a845040348628/43b80f11e4259ad4 The ASA VPN module is enhanced with a new logical interface called Virtual Tunnel Interface (VTI), used to represent a VPN tunnel to a peer. Your email address will not be published. Do you write articles on scripting for cisco hardware using Python? ReferencethisCisco documentfor full IKEv1 on ASA configuration information. We will be using the following setup in this article: To create a route-based VPN site-2-site tunnel, follow these steps: IP addresses assigned to the tunnels are non-routable and necessary to bring the tunnel up. 2858489959 1.1.1.1/4500 2.2.2.2/4500 READY INITIATOR If reply traffic from Azure is seen, then the VPN is properly built and sends/receives traffic. Thank you for the information. In the Azure portal. In this article we explain how to configure a basic route-based site-2-site VPN tunnel. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. You mentioned that cryto maps are no longer needed, If you have multiple VPN Route-based ikev2 tunnels are is it ok to see, local and remote selector as 0.0.0.0/0, Child sa: local selector 0.0.0.0/0 255.255.255.255/65535 The drawback of this method is that you for instance can't run a routing protocol between the two VPN peers, because you don't have interfaces on which the routing protocol can be associated. But no proxy-IDs aka traffic selection aka crypto map. . >>This can be a good topic for new article. The attributes listed are provided best effort from, Phase 2 IPSecattribute information from Microsoft that conflicts is, IKEv2 Route-based with VTI on ASA Code 9.8 (1) or Later, IKEv2 Route-based with Policy-based Traffic Selectors, https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-connect-multiple-policybased-rm-ps, https://www.cisco.com/c/en/us/td/docs/security/firepower/670/configuration/guide/fpmc-config-guide-v67/firepower_threat_defense_site_to_site_vpns.html#concept_ccj_p4r_cmb, this publicly available Microsoft document, https://community.cisco.com:443/t5/security-knowledge-base/troubleshooting-access-problems-using-packet-tracer/ta-p/3114976. . Verify the phase 2 IPSec security association has built with show crypto ipsec sa peer [peer-ip] . Ensure that Azure is configured for route-based VPN and UsePolicyBasedTrafficSelectors must be configured in the Azure portal through the use of PowerShell. In this example, the traffic of interest is the traffic from the tunnel that is sourced from the 10.2.2.0 subnet to 10.1.1.0. On the Network Objects window, click on the green plus button next to the Available Networks text to create a new object. Great article as always! Here, an IKEv1 SA built with ASA as the initiator to peer IP 192.168.2.2 with a leftover lifetime of 86388 seconds is shown. VPN tunnel is not yet established but is in negotiation. So that is why it doesn't need an explicit route. Logic says that Azure VPN Gateway subnet and subnet on which VTI is on should be the same. Click on the Add VPN dropdown menu and choose Firepower Threat Defense device . Great! To specify the local traffic selector, navigate to the Protected Networks option, and click on the green plus button to create a new object. Hi Pete. However, you have to set the IP address on the tunnel interface manually after that. Possibly through Azure PowerShell that information could be retrieved. Route-Based VPN from SRX to Cisco ASA with Static NAT. Ensure that the VPN traffic is not subjected to any other NAT rule. Step 3. For further clarification, contact Microsoft Azure support. Thats Phase 1 connected, you will also need to check Phase 2, Microsoft Azure To Cisco ISR Router Site to Site VPN, Azure to Cisco VPN Failed to allocate PSH from platform. The sample configuration connects a Cisco ASA device to an Azure route-based VPN gateway. set snmp-index 8 Enable ISAKMP (version 2) on the outside interface, then configure the parameters that it will use. It is mandatory to procure user consent prior to running these cookies on your website. That's all we need to configure, please remember the phase-1 and phase-2 parameters should match on both sides for a successful VPN connection. Ideally, you want to use the strongest authentication and encryption algorithms the peer can support. I think there is a wrong title just before the phrase Im using 9.9(2)36, VTIs are supported on 9.7, The title reads Configure the Cisco ASA for Policy Based Azure VPN but it should be Route Based. ????? In that case would you still need to use SLA to alter the route or would the interface go down with a loss of connectivity to Azure and fail down to the next higher cost route? Its so dirty haha. All branches can reach the Azure subnet since the encryption domain has the on-prem networks summarized with a /16 prefix. set remote-ip 169.254.0.249 255.255.255.252 The interface configuration is self-explanatory, ASA has two interfaces, one for the Server and another one for the Internet. next Cisco Adaptive Security Appliance (ASA) supports route-based VPN with the use of Virtual Tunnel Interfaces (VTIs) in versions 9.8 and later. set pfs group21 I have connection to this machine from on-premise LAN. inbound set proposal aes256gcm-prfsha512 Welcome back! Step 2. Hi Pete. Route-based:The encryption domain is set to allow any traffic which enters the IPSec tunnel. set security-association lifetime seconds 3600, crypto ikev2 policy 2 Thats correct, you dont need any, (unless you apply an access-list to the the tunnel interface). There are two methods to define the VPN encryption domains: route-based or policy-based traffic selectors. set ikev2 ipsec-proposal AES-256-GCM There is also a valid child SA built for encrypted traffic to flow over. At on-prem level it would be no trouble avoiding routing loops the trick part is to accomplish this at the Azure routing level. Route-based VPN is an alternative to policy-based VPN where a VPN tunnel can be created between peers with Virtual Tunnel Interfaces. Give the tunnel a name > Site-to-Site IPSec > Select your Local Network Gateway (ASA) > Create a pre-shared-key (you will need this for the ASA config!) set ip 169.254.0.250 255.255.255.255 On the Create New VPN Topology window, navigate to the Node B section and click the green plus button to add the remote endpoint traffic selector. We need to of course enable IKEv2 on the WAN interface. This website uses cookies to improve your experience. A VTI is configured on the ASA. Encr: AES-GCM, keysize: 256, Hash: N/A, DH Grp:21, Auth sign: PSK, Auth verify: PSK Step 14. addr: 2.2.2.2:4500 -> 1.1.1.1:4500 You no longer have to keep track of all remote subnets and include them in the crypto map access list. address, and it works fine, (think of it like a local loopback address, though do note the difference to the last octet in the route statement!). Peteare you saying a GRE tunnel is created between the vti and the outside inteface ? When ill try set up AAA Radius server in ASA, in interface section is no VTI interface on list. Can be used with Cisco ASA OS (pre 8.4) IKEv1 only. Route-based VPN allows determination of interesting traffic to be encrypted or sent over VPN tunnel and use traffic routing instead of policy/access-list as in Policy-based or Crypto-map based VPN. These are the VPN parameters: Route-based VPN, that is: numbered tunnel interface and real route entries for the network (s) to the other side. Step 3. Run debugs to view the tunnel negotiation process and identify where and if a failure occurs. Configure IPSec Proposal and Profile that we will use in the next step. Cisco Firewall Service Enterprise Router Modules, Cards & Adapters . Ensure that Azure is configured for route-based VPNand do notconfigure UsePolicyBasedTrafficSelectors in the Azure portal. tunnel-group 2.2.2.2 general-attributes set psksecret xxxxx ), ForIKEv1 policy-based VPN that uses the crypto map on ASA and FTD: ASA code version 8.2 or later and FTD 6.2.0 or later. If you configure a crypto map with two peers, one as the primary, and another as the secondary, the ASA will try always to initiate the tunnel with the primary peer. Specify the name of the policy and its desired parameters for ESP Encryption and ESP Hash algorithms and click Save . 1. I do have a question to you. ikev2 remote-authentication pre-shared-key ***** The attributes listed are provided best effort fromthis publicly available Microsoft document. Everything works when we initiate from inside the ASA, but when they initiate from outside the ASA in the Azure environment they are not able to reach the inside hosts? This document describes the concepts and configuration for a VPN between CiscoASA and Cisco Secure Firewall and Microsoft Azure Cloud Services. Is there any walkaroud or should I just reconfigure tunnel for Policy Based? Cisco 9500 StackWise Virtual Configuration, Site-to-Site VPN between Palo Alto and Cisco ASA, Cisco ASA Active/Passive Failover Configuration Example. Just configure the remote router, group name, username /password and you are ready to go.The policy is then implemented in the configuration interface for each . If source traffic is seen but reply traffic from Azure is absent, continue on to verify why. I used your guide for assistance. I am assuming the latter. Their purpose is to set things globally, and are generally hidden from the config, (i.e show run wont show them). VPN Type: Route based SKU: VpnGW1 (or higher, basic doesn't support IKEv2) Virtual Network: Whatever Azure network we are joining over the VPN. On the FMC dashboard, click Deploy at the top-right pane, choose the FTD device, and click Deploy . rx packets: 0 bytes: 0 errors: 0 It can contain multiple entries if there are multiple subnets involved between the sites.In Versions 8.4 and later, objects or object groups can be created that serve as containers for the networks, subnets, host IP addresses, or multiple objects. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Privacy Policy | Copyright PeteNetLive 2022, Microsoft Azure Route Based VPN to Cisco ASA, crypto ipsec ikev2 ipsec-proposal AZURE-PROPOSAL, protocol esp integrity sha-384 sha-256 sha-1, ip address 169.254.225.1 255.255.255.252, tunnel protection ipsec profile AZURE-PROFILE, tunnel-group 40.115.49.202 type ipsec-l2l, tunnel-group 40.115.49.202 general-attributes, tunnel-group 40.115.49.202 ipsec-attributes, ikev2 local-authentication pre-shared-key supersecretpassword, ikev2 remote-authentication pre-shared-key supersecretpassword, route AZURE-VTI01 10.0.0.0 255.255.255.0 169.254.225.2 1, AZURE-VTI01 10.0.0.0 255.255.255.0 169.254.225.2 1. You can now use these routing protocol to share routing information and to route traffic flow through VTI-based VPN tunnel between peers TLS 1.3 in Remote Access VPN. These are the VPN parameters: You can do the configuration through the GUI: or through the CLI: (incl. IKEv2 attribute information from Microsoft that conflicts is, Microsoft has published information that conflicts with regards to the particular phase 2 IPSec encryption and integrity attributes used by Azure. To summarize from the ASA and FTD configuration perspective: Cisco recommends that you have knowledge of these topics: The information in this document is based on these software and hardware versions: The information in this document was created from the devices in a specific lab environment. Required fields are marked *. Great article. enc: aes-gc 469ec9f9ab955145fcbf4861bd31a7008c41ab2178df03eb23cd1cd4658cbc4b50c1abf0 Step 19. Create a tunnel group under the IPsec attributes and configure the peer IP address and the IKEv2 local and remote tunnel pre-shared key: Step 7. edit KG-Main Subscription: Your subscription Location: Typically your virtual networks location. Create a Site-to-Site policy. For authentication, you can use SHA-256 or higher. Fullikev2 debug procedure and analysis can be foundhere. What IP do I put on my Tunnel interface / Where do I get that from?Use whatever you want, NO it does not have to be on the same network as something in Azure, in fact Im using an APIPA 169.254.x.x. main# ping 169.254.0.250 For ASA configured with a VTI,Azure must be configured for route-based VPN. The last thing to do, is tell the firewall to route the traffic for Azure though the VTI.Note: The last octet in the destination IP is different from the VTI IP! tunnel protection ipsec profile ipsec-prop-vpn, crypto ipsec ikev2 ipsec-proposal AES-256-GCM The encryption domain is set to allow any traffic which enters the IPsec tunnel. I have a slightly complex challenge scenario I would like to ask you about. end For a site-to-site IKEv1 VPN from ASA to Azure, follow the next ASA configuration. To enable this connectivity, your on-premises policy-based VPN devices must support IKEv2 to connect to the Azure route-based VPN gateways. Create a NAT exemption rule: Note:When multiple subnets are used, you must create object groups with all of the source and destination subnets and use them in the NAT rule. Also your ASA needs to be setup to allow pings, (try pinging 8.8.8.8 that usually responds), if yours doesnt then configure your ASA to allow ping traffic. Create an IKEv1 policy that defines the algorithms/methods to be used for the hash, authentication, Diffie-Hellman group, lifetime, and encryption. Click Ok on the Add Endpoint window. next In this example Node A is used as the local subnets to the FTD. Route-based tunnels are preferred when creating a site-to-site VPN tunnel to Azure. Encryption domain for policy-based tunnels Step 2.1. Please try again. The default route is pointing to the ISP router with a static route. Configure the ISAKMP policy or Phase 1 parameters with the creation of a new one. The complex part is that I would like to maintain the current route through the WAN link as a backup path in case the tunnel from the branch fails, keeping in mind that the tunnel with the main office would still have the same summarized networks for the branches subnets, and that the tunnel with a specific branch would have just the subnet for that branch in its encryption domain. set ip6-other-flag enable Crypto maps are used on ASA for this example. The encryption domain is set to encrypt only specific IP ranges for both source and destination. Learn about Cisco ASAv route based VPN (Demo connecting AWS and Azure) - YouTube Learn about Cisco ASAv route based VPN (Demo connecting AWS and Azure) Anubhav Swami 1.26K. On the New Network Object window, specify the name of the object and choose accordingly host/network/range/FQDN. Most of our employees use standard VPN client connections to the ASA. Thanks! On the Create New VPN Topology window you can see now both nodes with their correct traffic selectors/protected networks. More than 6 years ago (!) Route-based IPSec uses an encryption domain with the following values: Source IP address: Any (0.0.0.0/0) Destination IP address: Any (0.0.0.0/0) Protocol: IPv4 If you need to be more specific, you can use a single summary route for your encryption domain values instead of a default route. I attempted using ASA to set it up but ran into issues so reverted it back to policy-based VPN. We also need to add a static route that points to the tunnel to reach the remote subnet. SK_er: 39671dc0e37b947a-35f0b35484c15f94-77af132ef506b74f-c30b21411f907312-f2f09a3a Regards, tunnel-group 2.2.2.2 ipsec-attributes Phase 2 IPSecattribute information from Microsoft that conflicts is. create a > * create a crypto ipsec proposal. For further clarification, contact Microsoft Azure support. I am, If you look at the ISR post elsewhere on the site, I think it also uses a 169.254 address.169.254.225.2 is not assigned to anything, nor does it have to be. The attributes listed are provided best effort fromthis publicly available Microsoft document. On the IKEV1 IPsec Proposal window, add your new IPsec policy to the Selected Transform Sets section and click OK . With your virtual network selected >Subnets > +Gateway Subnet. ForFTD, further information on how to configure VTIs can be found here; For IKEv2 route-based VPN that uses VTI on ASA: ASA code version 9.8(1) or later. Thoughts? In this post I will cover all the steps necessary to install ESXi on your computer, Configure Policy-Based and Route-Based VPN from ASA and FTD to Microsoft Azure. Note that the NAT exempts traffic (no translation takes effect). spi: 9f02578f No NAT between the internal networks (of course not ;)). I published a tutorial on how to set up an IPsec VPN tunnel between a FortiGate firewall and a Cisco ASA. Cisco Secure Firewall or Firepower Threat Defense (FTD) managed by FMC (Firepower Management Center) supports route-based VPN with the use of VTIs in versions 6.7 and later. I dont know how true that is. Let's assume the client-pc (172.16.10.25) in the branch office needs to access a web server (192.168.10.10) in the headquarter and we need to set up a VPN tunnel to provide connectivity. Check your inbox and click the link. The tunnel interface on the Forti is added during the VPN setup automatically. For further clarification contact Microsoft Azure support. I found a website, that mentined the possibility Can I use the same 169.254.225.0/30 subnet on the the VTI interface of my 2nd, 3rd and 4th ASAs when setting up the route-based VPN to the same Azure VNet? Step 16. When configured, this requires you to define a custom IPSec Policy in Azure for the connection and then apply the policy and the Use Traffic Policy Selectors option to the connection. backgroud: my tunnel was working without tunnel interface with a different internet link. Configure the crypto map and apply it to the outside interface, which has these components: The peer IP address The defined access list that contains the traffic of interest The TS The configuration does not set Perfect Forward Secrecy (PFS) since publicly available Azure documentation states that PFS is disabled for IKEv1 in Azure. Hello, Step 7. Knowledge of FMC for FTD management and configuration. All rights reserved. lifetime/rekey: 3600/2806 prf sha512 If I remember correctly, Cisco introduced Virtual Tunnel Based (VTI) VPN back in 2017 with a 9.7.1 code base. The tunnel works great, so long as the ASA is the Initiator. created: 453s ago We also use third-party cookies that help us analyze and understand how you use this website. lifetime/rekey: 86400/85677 Step 6. It is set up same as yours not sure what is going on here. IPsec Local and remote traffic selectors are set to 0.0.0.0/0.0.0..0. If ENCRYPT: ALLOW seen in packet-tracer. "route based" VPN with Cisco ASA I saw an discussion in CCIE Security study group, if it is possible to build a vpn between a cisco asa and cisco router with VTI interface and ipsec. You've successfully subscribed to Packetswitch. These 2 Commands has to be executed to allow inbound traffic. Add an IKEv2 phase 2 IPsec Proposal. Step 4. The cloud vendor is not able to reach us when they initiate the connection? We're setting up a VPN link to a 3rd party provider (a financial clearing broker) that uses a Cisco ASA on the other side in order to exchange trade clearing messages via FIX protocol (a TCP-based protocol for financial transactions). The sample requires that ASA devices use the IKEv2 policy with access-list-based configurations, not VTI-based. $129.99. When the ASA is the initiator, the traffic selectors are 0.0.0.0 and everything works fine. Can be used on newer Cisco Firewalls (ASA 5506-x, 5508-X, 5512-x, 5515-x, 5516-x, 5525-X, 5545-X, 5555-x, 5585-X). Create a NAT exemption rule: After you complete the configuration on both ASA and the Azure gateway, Azure initiates the VPN tunnel. Last thing to do is to create routes for remote networks to point to the VPN tunnel: In this blog post we will go through the Debian Linux installation and basic setup process. Click Create Local Network Gateway next Step 5. Step 11. Ensure that there are no access-list drops seen. group 21 24 e1831416107c6ca5c1d6da624269ba4e21b7d45c95d5a16da8c0f9200b598ebbab76f5b9, 3d6e5ab8c1ac1de02a230095d76778dd5b88aeeff7dfae8b25df26c265bdec56710d040e, # show crypto ipsec sa peer 194.247.4.10 detail, #pkts encaps: 29, #pkts encrypt: 29, #pkts digest: 29, #pkts decaps: 45, #pkts decrypt: 45, #pkts verify: 45, #pkts compressed: 0, #pkts decompressed: 0, #pkts not compressed: 29, #pkts comp failed: 0, #pkts decomp failed: 0, #pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0, #PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0, #Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0, #pkts no sa (send): 0, #pkts invalid sa (rcv): 0, #pkts encaps failed (send): 0, #pkts decaps failed (rcv): 0, #pkts invalid prot (rcv): 0, #pkts verify failed: 0, #pkts invalid identity (rcv): 0, #pkts invalid len (rcv): 4009213712, #pkts invalid ip version (send): 0, #pkts invalid ip version (rcv): 0, #pkts invalid len (send): 0, #pkts invalid len (rcv): 0, #pkts invalid ctx (send): 0, #pkts invalid ctx (rcv): 0, #pkts invalid ifc (send): 0, #pkts invalid ifc (rcv): 0, #pkts failed (send): 0, #pkts failed (rcv): 0, #pkts replay rollover (send): 0, #pkts replay rollover (rcv): 0, #pkts min mtu frag failed (send): 0, #pkts bad frag offset (rcv): 0, #pkts internal err (send): 0, #pkts internal err (rcv): 0, Route-Based VPN Tunnel FortiGate Cisco ASA. Create a static route to point traffic into the tunnel. Configure a crypto map and apply it to the outside interface, which contains these components: The peer IP address The defined access list that contains the traffic of interest The IKEv2 phase 2 IPSec Proposal The phase 2 IPSec lifetime in seconds An optional Perfect Forward Secrecy (PFS) setting, which creates a new pair of Diffie-Hellman keys that are used in order to protect the data (both sides must be PFS-enabled before Phase 2 comes up)Microsoft has published information that conflicts with regard to the particular phase 2 IPSeclifetime and PFSattributes used by Azure. What about using NAT directly on ASA? Configure route-based VPN tunnel on Cisco ASA In this article we explain how to configure a basic route-based site-2-site VPN tunnel Nenad Karlovcec Jun 3, 2022 2 min read Route-based tunnels are preferred when creating a site-to-site VPN tunnel to Azure. This is an expected condition when you first bring the tunnel up. Cisco ASA Site-to-Site VPN Example (IKEv1 and IKEv2). Route-based VTI VPN allows dynamic or static routes to be used where egressing traffic from the VTI is encrypted and sent to the peer, and the associated peer decrypts the ingress traffic to the VTI. The gateway_ip needs to be any IP address (existent or non-existent) on the tunnel interface subnet, such as 169.254.0.2. 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