First, we start by creating the zone and the interface that we will use for the tunnel on each side. Select ESP for the IPsec Protocol. Apply debug packet filters, captures or logs, if necessary, to isolate the issue where the traffic is getting dropped. 1. Palo Alto experience is required. If routing is static, you will have to use path monitoring. Then access the ' Advanced Options ' tab and check the box for ' Enable Passive Mode '. Set a friendly name for the remote gateway. MTU: 1427. If phase-1 SA is down you would not see the peer IP and the Established status.For ikev2, the IKE Infodetails appear the same, when you click on IKE InfoGUI:ikev2 CLI: 3. It isn't too busy to respond to DPD messages from AWS peers. Click the IPsec IKEv2 Tunnels tab. Retrieve User Mappings from a Terminal Server Using the PAN-OS XML API. Enter a Tunnel Name. IPSec Tunnel Go to Network >> IPSec Tunnels and click Add. I am using the same IKE crypto and IPSec Crypto settings (default and custom). It is divided into two parts, one for each Phase of an IPSec VPN. These IP addresses are not real and just used for the sake of this example. They are respective layer3 interfaces on the firewall, but certainly on the same (external) subnet. In the Name field, give the name of IPSec Tunnel, i.e. This document can be used to verify the status of an IPSEC tunnel, validate tunnel monitoring, clear the tunnel, and restore the tunnel. IKE Authetication Method: Select Pre-Shared Key and enter the password in the box next to it. Check if vendor id of the peer is supported on the Palo Alto Networks device and vice-versa. I've setup an IPSec VPN gateway and connection from my USG 50 to a Palo Alto 3220 firewall. Phase 1: To rule out ISP-related issues, try pinging the peer IP from the PA external interface. In a future article, I will be covering how to connect a Palo Alto Networks firewall to a non-Palo Alto Networks firewall what differences there are, what extra steps need to be taken, etc. Once the static routes are in place, set the Security Policy to grant access across the tunnel for the subnets you want to be able to traverse the subnet. If incorrect, logs about the mismatch can be found under the system logs under the monitor tab, or by using the command: Check the proxy-id configuration. Cannot ping interface, IP or defaul gateway from PA 500 to Cisco switch, Step by Step: Connect Prisma Access to AWS via Service Connection with redundant tunnels and BGP routing. Click Accept as Solution to acknowledge that the answer to your question has been provided. The last part is important for AWS or other cloud providers that have a local/VPC IP issued to the interface that the Palo sees, but the . Zone and Interface Go to Network -> Zones -> 'Add' Name: Branch_Zone Type: Layer3 Resolution This document is intended to help troubleshoot IPSec VPN connectivity issues. We . 08:40 AM. Make sure above parameters are matching between the peers. Click Lock. > show vpn flow name Do I need to set anything for Untrust-L3? IP tunnel on AWS: 169.254.60.148/30. Check for any devices upstream that perform port-and-address-translations. 08:39 AM 08:34 AM . Click Add and fill out the fields as follows: Encryption aes-256-gcm Authentication sha256 DH Group no-pfs Lifetime Hours; 1 Click OK and then click Commit. Path monitoring is similar to Cisco IP SLA, the firewall will monitor a defined IP on the other side of the tunnel if that IP become unreacheabe, cause for example the tunnel went down, the . But for some reason when I plug it back into the PA 200 on ethernet/1 it won't ping. To improve your experience when accessing content across our site, please add the domain to the allow list on your ad blocker application. Yes, correct. In this video I will demonstrate how to configure Site-to-site IPSEC VPN Tunnel between 2 Palo Alto Firewalls.Friends, this was just a quick setup video. Step 7 Check whether the on-premises VPN device has Perfect Forward Secrecy enabled. Go to Configure >Site-to-Site VPN>IPsec and click Add Under General settings, enter Name. ike gateway 1 ike gateway 2 Tunnel Interface Create 2 x Tunnel interfaces and set the MTU to 1427. Palo Alto Configuration These instructions are based off the web interface, but should be easily adaptable to the terminal. Run the above commandshow vpn flow tunnel-id , multiple times to check the trend in counter values.Constant increments inauthentication errors, decryption errors,replay packets indicate an issue with the tunnel traffic.When there is normal traffic flow across the tunnel, the encap/decap packets/bytes increment.5. In the Gateway Endpoint section, check the Start Phase 1 tunnel when Firebox starts check box. > test vpn ike-sa gateway The VPN tunnel is negotiated only when there is interesting traffic destined to the tunnel. Check if encapsulation and decapsulation bytes are increasing. - edited Network > IPSec Tunnels Home PAN-OS PAN-OS Web Interface Help Network Network > IPSec Tunnels Last Updated: Thanks for visiting https://docs.paloaltonetworks.com. Here's a step-by-step process for how to get an IPSec tunnel built between two Palo Alto Network firewalls. The member who gave the solution and all future visitors to this topic will appreciate it! If incorrect, logs about the mismatch can be found under the system logs under the monitor tab, or by using the following command: Check if pfs is enabled on both ends. Lifetimes do not have to match; they will be negotiated between the peers. messages from the peer in the system logs under the Monitor tab or under ikemgr logs. Once, you click on Add, and another pop-up window will open. This skillet will take input variables and configure an IPSec Tunnel and IKE Gateway. If incorrect, logs about the mismatch can be found under the system logs, or by using the following CLI command: Check that preshared key is correct. PA 200 #1 has PANOS 7.0.5-H2 and PA 200 #2 has PANOS 7.1.9. Peer IP equals the IP address of the Azure connection public IP address (when received after configuration). There will also be another article where I will detail the steps necessary for connecting a Palo Alto Networks firewall into Microsoft Azure. 08-28-2017 You also need to know the lifetime for the IPSec crypto profile. > show vpn flow name | match bytes. With a Palo Alto Networks firewall to another Palo Alto Networks firewall, its even easier. You will want a pre-shared key/passphrase that both sides will use for the initial authentication and connection to each other. At this point, we have all of the components that we need to build the tunnel, so we can begin that process. I need to do something different I think. 06:15 AM. Was easier to write the message , but you are saying true. You can click on the Tunnelinfo to get the details of the Phase2SA.CLI: GwID/client IP TnID Peer-Address Tunnel(Gateway) Algorithm SPI(in) SPI(out) life(Sec/KB), -------------- ---- ------------ --------------- --------- ------- -------- ------------, 38 139 203.0.113.100 ipsec-tunnel:lab-proxyid1(ike-gw) ESP/G256/ F2B7CEF0 F248D17B 2269/0. Office side Network -> Zones -> AddName: Branch_ZoneType: Layer3Click Ok., Network -> Interfaces -> AddInterface Name: tunnel.201Config tab -Virtual Router: 10.241 Virtual Router (renamed from default)Security Zone: Branch_ZoneClick Ok., Branch side Network -> Zones -> AddName: Office_ZoneType: Layer3Click Ok., Network -> Interfaces -> AddInterface Name: tunnel.301Config tab -Virtual Router: 10.241 Virtual Router (renamed from default)Security Zone: Branch_ZoneClick Ok., Office side Network -> Network Profiles -> IKE Crypto -> AddName: Branch_IKE_CryptoDH Group: 20Authentication: sha512Encryption: aes-256-cbcKey Lifetime: 8 Hours, Branch side Network -> Network Profiles -> IKE Crypto -> AddName: Office_IKE_CryptoDH Group: 20Authentication: sha512Encryption: aes-256-cbcKey Lifetime: 8 Hours, Office side Network -> Network Profiles -> IKE Gateway -> AddGeneral tab -Name: Branch_IKE_GatewayVersion: IKEv1 only modeInterface: ethernet1/1 (the interface associated with the outside IP address that will be connecting to the Branch side)Local IP Address: 1.2.3.4 (the external IP address associated with this interface that will be connecting to the Branch side)Peer IP Address Type: IPPeer Address: 6.7.8.9 (the external IP address at the Branch Side that will be connected to)Authentication: Pre-Shared KeyPre-shared Key: AbCdEfGhIj123456@!Confirm Pre-shared Key: AbCdEfGhIj123456@!Local Identification: IP Address / 1.2.3.4Peer Identification: IP Address / 6.7.8.9, Advanced Options Tab -IKEv1 -> IKE Crypto Profile: Branch_IKE_CryptoClick Ok., Branch side Network -> Network Profiles -> IKE Gateway -> AddGeneral Tab -Name: Branch_IKE_GatewayVersion: IKEv1 only modeInterface: ethernet1/1 (the interface associated with the outside IP address that will be connecting to the Branch side)Local IP Address: 6.7.8.9 (the external IP address associated with this interface that will be connecting to the Branch side)Peer IP Address Type: IPPeer Address: 1.2.3.4 (the external IP address at the Branch Side that will be connected to)Authentication: Pre-Shared KeyPre-shared Key: AbCdEfGhIj123456@!Confirm Pre-shared Key: AbCdEfGhIj123456@!Local Identification: IP Address / 6.7.8.9Peer Identification: IP Address / 1.2.3.4, Advanced Options Tab -IKEv1 -> IKE Crypto Profile: Office_IKE_CryptoClick Ok., Office side Network -> Network Profiles -> IPSec Crypto -> AddName: Branch_IPSec_CryptoEncryption: aes-256-cbcAuthentication: sha512DH Group: Group 20Lifetime: 1 Hour, Branch side Network -> Network Profiles -> IPSec Crypto -> AddName: Office_IPSec_CryptoEncryption: aes-256-cbcAuthentication: sha512DH Group: Group 20Lifetime: 1 Hour. Now, In Template Type select Custom and click Next. IP tunnel on Palo Alto: 169.254.60.150/30. Check to see if a policy is dropping the traffic, or if a port translating device in front of PAN that might be dropping the ESP packets. Thanks for the feedback. Check that the policy is in place to permit IKE and IPSec applications. If pings have been blocked per security requirements, see if the other peer is responding to the main/aggressive mode messages, or the DPDs. Select Network > IPSec Tunnels. Download PDF. Above these instructions, right-click Use this template and open the link in a new tab. To enable this setting, navigate to Network > network profiles > IKE Gateways and open the IKE Gateway relevant to the IPSEC tunnel. September 2021. If traceroute output stops at an IP address associated with your internal network, verify that the routing path to the VPN edge device . If tunnels are up but traffic is not passing through the tunnel: https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClivCAC&refURL=http%3A%2F%2Fknowledgebase.paloaltonetworks.com%2FKCSArticleDetail, Created On09/25/18 20:36 PM - Last Modified03/03/22 13:58 PM, > show vpn ike-sa gateway Before starting to set up a tunnel, a couple of items need to be decided on each end. I am using PA administrator's guides and other material to create an IPSec Tunnel, but still RED for me so far. Authentication: Pre-Shared Key Pre-shared Key: LetsConfig Now go to Advanced Options of the same pop-up window and add IKE Crypto Profile as OUR-IKE-CRYPTO (previously created). 2. The best news is, now that you have the two sides connected with the configuration shared here, the communication channel between the different networks will have no limits. Here is the reference document: https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpn-devices#devicetable If you need Azure end logs, you can enable network watcher. When I ping the other ip, it fails and can tell it is trying to ping it out of the management interface ip, which is totally wrong. Configure tunnel interface, create, and assign new security zone. Configure Dial-Out Settings In this section we will configure the following parameters: Type of Server I am calling: select IPSec Tunnel IKEv1 Server IP/Host Name for VPN: Enter Palo Alto's WAN IP address 113.161.93.x. Download PDF. In the General tab, select the Policy Type: Site to Site and Authentication Method: IKE using Preshared Secret. Heres a step-by-step process for how to get an IPSec tunnel built between two Palo Alto Network firewalls. Check out these Fuel blog posts for further reading: Topics: Path monitoring is the only thing that will remove a static route from the routing table. 4. How to start this course. Why do you think they cannot communicate? Posting this in case anyone sees something obvious that I may be missing? The Perfect Forward Secrecy feature can cause the disconnection problems. Office side Network -> IPSec Tunnels -> AddName: Branch_TunnelTunnel Interface: tunnel.201Type: Auto KeyAddress Type: IPv4IKE Gateway: Branch_IKE_GatewayIPSec Crypto Profile: Branch_IPSec_CryptoClick Ok., Branch side Network -> IPSec Tunnels -> AddName: Office_TunnelTunnel Interface: tunnel.301Type: Auto KeyAddress Type: IPv4IKE Gateway: Office_IKE_GatewayIPSec Crypto Profile: Branch_IPSec_CryptoClick Ok.. Create a new IKE Gateway with the following settings. . You will need to know the range (or ranges) of IP addresses on both sides that will need to be able to communicate with each other. Using the same ip on respective default static routes for the gateway. Tried with and without proxy ID, tried with and without NAT traversal, with and without Local/Peer identification (IP address), but still RED. 08-30-2017 To view the main/aggressive and quick mode negotiations, it is possible to turn on pcaps for capturing these negotiations. If I take that cable from ethernet/1, plug into my laptop, configure same external IP and subnet mask only, it pings fine. With a Palo Alto Networks firewall to any provider, its very simple. 08:35 AM. 5.2.8.Create IPsec Tunnels. https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClVGCA0&refURL=http%3A%2F%2Fknowledgebase.paloaltonetworks.com%2FKCSArticleDetail, Created On09/25/18 19:10 PM - Last Modified04/20/20 21:49 PM. > clear vpn ipsec-sa tunnel Delete IKEv1 IPSec SA: Total 1 tunnels found. When such devices receive ESP packets, there is a high possibility they may silently drop them, because they do not see the port numbers to translate. The transport mode is not supported for IPSec VPN. Encryption: aes-256-gcm Lifetime: 1 hour With this information, we can now begin the process for building the IPSec tunnel. If encapsulation bytes are increasing and decapsulation is constant, then the firewall is sending but not receiving packets. Add an IKE Gateway for Phase 1 negotiation via Network > Network Profiles > IKE Gateways > Add. Note: Manual initiation is possible only from the CLI. I think my test is flawed since even though my ethernet/1 interfaces are public IPs, they are on the same subnet and not communicating with each other from those interfaces. However, this connection has not been established to Palo Alto Firewall 2 and it is shown by 2 circular icons at Tunnel Info and IKE Info is still red. Posted by Configure the same pre-shared key (Step 4 and 5) on both side of the tunnel. Details1. Palo Alto 200 (PA-200) device Public Static IP to assign to PA-200 Azure subscription or trial 1. Use filters to narrow the scope of the captured traffic. Click Send Changes and Activate. Does the PANOS have to be the same or licensed? These are the steps necessary to get an IPSec tunnel up and running. > test vpn ipsec-sa tunnel , > debug ike global on debug Check DPD settings If a VPN peer doesn't respond to three successive DPDs, then the peer is considered dead and the tunnel is closed. Double checked Peer and local ip address. At this time, perform a commit to the firewall to put all of the changes into effect. PAN-OS Administrator's Guide. Navigate to Network > Network Profiles > IPsec Crypto and then click Add. I am able to ping each others respective external IP from each firewall (static IPs assigned to me from ISP in the same subnet). As mentioned at the start of this article, connecting two Palo Alto Networks firewalls is very simple and straightforward. Using a simple check box, we can make the firewall act as a 'Responder-only' in the negotiation. Thank you for reading! This skillet is meant to be an easy IPSec tunnel setup that can be replicated for SE POCs, customer environments where hundreds of tunnels need to be configured, and can be leveraged for on-prem tunnels, site-2-site tunnels, and cloud environments. IKEv2 SAs are inherently independent. To rule out ISP-related issues, try pinging the peer IP from the PA external interface. Click Add. Let's access the Monitor >> System and use the filter "( subtype eq vpn )". Configure OSPF on IPSec VPN Tunnel between 2 Palo Alto Firewalls 1,446 views Sep 16, 2020 In this video I will demonstrate how to configure OSPF on 2 Palo Alto firewalls which are. > debug ike pcap off. I will keep trying, seems fairly straight forward, just matching settings between two PA 200 firewalls. We also need to select the IKE profile created in the first step. The first tunnel you create is the primary tunnel for the service connection. > view-pcap no-dns-lookup yes no-port-lookup yes debug-pcap ikemgr.pcap Go back to Network -> IPSec Tunnels and check the status lights to confirm that the tunnel is up. 08-30-2017 The IKE Initiator is the device initiating the IKE VPN tunnel negotiation request and the IKE Responder is the device receiving the request to establish an IKE VPN tunnel. The other thing which I would suggest is to take the packet capture with the IPSec traffic. Now, enter below information- Name: OUR-IPSEC Tunnel Interface: tunnel.5 IKE Gateway: OUR-IKE-GATEWAY Maybe try a local true layer3 test first or something else to make this work with these two external IPs I have from ISP that are on same subnet. 4) No need Proxy-IDs between the Palo`s 4) No need NAT-T (unless your external ip is RFC1918 ip address) 5) When you complete the set up generate the traffic between the sites or use test vpn command 6) Follow the video: https://www.youtube.com/watch?v=5xgYhXlnGUw 1 Like Share Reply Go to solution 9t89m8fu L2 Linker In response to TranceforLife To connect your remote network locations to the Prisma Access service, you can use the Palo Alto Networks next-generation firewall or a third-party, IPSec-compliant device including SD-WAN, which can establish an IPsec tunnel to the service. IPSec Tunnel Restart or Refresh. 08-30-2017 - edited At a minimum, the following items need to be known by both parties for the proper configuration of a tunnel: In this example, we will set up a connection from two Palo Alto Networks firewalls with IP addresses of 1.2.3.4 and 6.7.8.9. > show vpn flow name | match bytes. 3) The same applies for P2. Use the following steps to set up an IPSec tunnel for your service connection. You can check the logs (system & traffic) to understand why the connection is not getting established. These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole! When both tunnels are up, the primary tunnel takes priority over the secondary tunnel. The button appears next to the replies on topics youve started. It's all a shared template on the Palo side, on the Cisco side it is a shared IPSEC profile, 1 works, 1 doesn't. It's on a private line, might as well be directly connected. Usually this policy is not required if there is no clean-up rule configured on the box. Network > IPSec Tunnels. Step 1 Go to Network >Interface > Tunnel tab, click Add to create a new tunnel interface and assign the following parameters: Name: tunnel.1 Virtual router: (select the virtual router you would like your tunnel interface to reside) Both traceroute and tracert must be run from your internal network to an Amazon EC2 instance in the VPC that the VPN is connected to.. 1 person found this solution to be helpful. I don't know why they can not communicate. Before running the commands, ensure that the IKE and IPSec crypto profiles are configured on the firewall. PAN-OS. Configuring packet filter and captures restricts pcaps only to the one worked on, debug IKE pcap on shows pcaps for all VPN traffic. Select Activate on save and Create firewall rule. Enter a meaningful name for the new profile. The Citrix SD-WAN solution already provided the ability to break out Internet traffic from the branch. > show vpn ipsec-sa tunnel . If decapsulation bytes are increasing and encapsulation is constant, then the firewall is receiving but not transmitting packets. Troubleshooting IPSec tunnel on Palo Alto Firewall. For Phase 1 of the connectivity, you need to know the DH Group, Authentication, and Encryption. PAN-OS Web Interface Reference. 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