Prisma Access
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Panorama
Panorama
Configure a
Prisma Access
remote network deployment that allocates bandwidth by compute
location. To configure a
Prisma Access
remote network deployment that allocates bandwidth by
compute location, complete the following steps. If you need to onboard many remote networks (up to 1,000), you can onboard a
remote network using the following procedure, then export the remote network configuration to a
CSV file, add the other remote networks you want to onboard to the
CSV file, then import the CSV file to save the configuration into
Prisma Access
. - Select.PanoramaCloud ServicesConfigurationRemote Networks
- Allocate bandwidth for the locations that you want to onboard by clicking the gear icon in theBandwidth Allocationarea.You allocate bandwidth at an aggregate level per compute location. See Prisma Access Remote Networks for details.If you have removed Autonomous DEM as an add-on license, or if you remove Autonomous DEM for remote networks from your license, selectDisable Autonomous DEM. If you remove Autonomous DEM for remote networks and do not disable Autonomous DEM, you will receive an error upon commit.If you have an existing remote networks deployment that currently onboards remote networks by location, a pop-up window displays, asking if you want to migrate to the aggregate bandwidth model. ClickMigrateto continue, orCancelto cancel the migration.The migration to the aggregate bandwidth model is permanent and not reversible. Before you migrate, review the pre-migration checklist. You mustCommit and Pushyour changes for them to take effect.TheService IP Address(the public IP addresses used on thePrisma Accessside of the IPSec tunnel for the remote network connection) do not change when you migrate your deployment to the aggregate bandwidth model, and no reconfiguration of your IPSec tunnel is required.
- Enter theBandwidth Allocationyou want for eachCompute Locationthat is associated with theyou want to onboard.Prisma AccessLocationsTo verify the bandwidth amount you entered, select the check mark next to the bandwidth amount; to cancel the amount, selectx.Specify a minimum bandwidth of 50 Mbps and a maximum bandwidth of the maximum remaining licensed bandwidth.
- (Optional, Deployments with Autonomous DEM for Remote Networks Licenses Only)EnableAutonomous DEM Allocationfor the compute location for which you allocated bandwidth.If you enable Autonomous DEM for the compute location, the amount of bandwidth used by the Autonomous DEM license is the same as the bandwidth you specify for the compute location. TheAutonomous DEM Allocated Totalshows you how much bandwidth is used by Autonomous DEM and how much is remaining. See the Autonomous DEM guide for more information.
- Wait for the bandwidth to be reflected in theAllocated Totalfield at the top of the page; then, clickOK.
- (Optional)If you want to configure your remote network to provide secure inbound access to remote network locations, click theInbound Access Remote Networkstab and follow the workflow to configure secure inbound access for a remote network.
- Adda remote network and specify aName.You cannot change the name of the remote network location after you enter it. Make sure you know your naming scheme for your remote networks before you begin onboarding.
- (Optional, BGP deployments only) Create a configuration so that your remote network connection can use up to four IPSec tunnels for its traffic (ECMP Load Balancing).Static routes are not supported (BGP is required), and, if you have QoS configured, you cannot change the Allocation Ratio for ECMP links. If your deployment uses one IPSec tunnel for its remote network connection or uses static routes, selectNoneforECMP Load Balancingand continue to Step 11.
- Select one of the choices to enable or disable ECMP load balancing.
- None—Do not use ECMP load balancing (use a single remote network tunnel for this remote network connection). This is the only choice you can make for static routes; BGP is required for ECMP load balancing.
- Enabled with Symmetric Return—Specify up to four IPSec tunnels for this remote network connection and forcePrisma Accessto use the same link for the return traffic as it used to send the traffic.Select this option if you use one or more tunnels as a backup tunnel to be used only if one of the primary tunnels go down. If a link fails,Prisma Accessuses one of the other tunnels to send and receive traffic symmetrically.
- Addan IPSec tunnel for the remote network connection and specify the following values:
- Enable—Enables BGP for the IPSec tunnel.This selection is not configurable; you must enable BGP to configure ECMP.
- Summarize Mobile User Routes before advertising—Reduces the number of mobile user IP subnet advertisements over BGP to your customer premises equipment (CPE) by summarizing them.By default,Prisma Accessadvertises the mobile users IP address pools in blocks of /24 subnets; if you summarize them,Prisma Accessadvertises the pool based on the subnet you specified. For example,Prisma Accessadvertises a public user mobile IP pool of 10.8.0.0/20 using the /20 subnet, rather than dividing the pool into subnets of 10.8.1.0/24, 10.8.2.0/24, 10.8.3.0/24, and so on before advertising them. Summarizing these advertisements can reduce the number of routes stored in CPE routing tables. For example, you can use IP pool summarization with cloud VPN gateways (Virtual Private Gateways (VGWs) or Transit Gateways (TGWs)) that can accept a limited number of routes.If you enable route summarization for a location that uses ECMP, you must enable route summarization on all links to that location, or you will receive an error during commit.Prisma Accesssets the community string for aggregated mobile user routes to0xFFFE:0xFFF0.
- Advertise Default Route—Prisma Accessoriginates a default route advertisement for the remote network using eBGP.Be sure that your network does not have another default route being advertised by BGP, or you could introduce routing issues in your network.
- Don’t Advertise—Prevents thePrisma AccessRoutesPrisma AccessBGP peer from forwarding routes into your organization’s network.By default,Prisma Accessadvertises all BGP routing information, including local routes and all prefixes it receives from other service connections, remote networks, and mobile user subnets. Select this check box to preventPrisma Accessfrom sending any BGP advertisements, but still use the BGP information it receives to learn routes from other BGP neighbors.SincePrisma Accessdoes not send BGP advertisements if you select this option, you must configure static routes on the on-premises equipment to establish routes back to Prisma Access.
- Peer AS—Specify the autonomous system (AS) to which the firewall, virtual router, or BGP router at your remote network belongs.
- Peer IP Address—Enter the IP address assigned as the Router ID of the eBGP router on the remote network for which you are configuring this connection.
- Local IP Address(Optional)—Enter an address thatPrisma Accessuses as its Local IP address for BGP.Specify the IP address to use on thePrisma Accessside of the tunnel.Specifying aLocal Addressis useful where the device on the other side of the connection (such as an Amazon Web Service (AWS) Virtual Private Gateway) requires a specific local IP address for BGP peering to be successful. Make sure that the address you specify does not conflict or overlap with IP addresses in the Infrastructure Subnet or subnets in the remote network.
- SecretandConfirm Secret(Optional)—Enter and confirm a passphrase to authenticate BGP peer communications.
- Repeat the previous step to add up to four tunnels to use with the remote network connection.
- Select theLocationin whichPrisma Accesswill deploy the infrastructure required to secure your remote network location. This region should be geographically located close to your remote network location.If you have not yet allocated bandwidth for the compute location to which the location maps,Prisma Accessprompts you to enter bandwidth for that compute location.
- Select theIPSec Termination Nodethat you want to use for this remote network.Prisma Accessuses this node to associate remote network locations with compute locations.
- (Static routing or single-tunnel deployments only) Select or add a newIPSec Tunnelconfiguration to access the firewall, router, or SD-WAN device at the corporate location:
- Select one of the predefined IPSec templates in the Remote_Network_Template, or, if you have added a template to the Remote_Network_Template_Stack (or modified the predefined Remote_Network_Template) that includes an IPSec Tunnel configuration, select thatIPSec Tunnelfrom the drop-down. Note that the tunnel you are creating for each remote network connection connects Prisma Access to the IPSec-capable device at each branch location.Use the following guidelines when configuring an IPSec tunnel:
- The peer addresses in the IKE Gateway configuration must be unique for each tunnel. You can, however, re-use some of the other common configuration elements, such as crypto profiles.
- The IPSec Tunnel you select from a template must use Auto Key exchange and IPv4 only.
- The IPSec tunnel, IKE gateway, and crypto profile names cannot be longer than 31 characters.
- If you onboard multiple remote networks to the same location with dynamic IKE peers, you must use the same IKE crypto profile for all remote network configurations.
- To create a new IPSec Tunnel configuration, clickNew IPSec Tunnel, give it aNameand configure the IKE Gateway, IPSec Crypto Profile, and Tunnel Monitoring settings.
- If the IPSec-capable device at your branch location uses policy-based VPN, on theProxy IDstab,Adda proxy ID that matches the settings configured on your local IPSec device to ensure thatPrisma Accesscan successfully establish an IPSec tunnel with your local device.
- LeaveEnable Replay Protectionselected to detect and neutralize against replay attacks.
- SelectCopy TOS Headerto copy the Type of Service (TOS) header from the inner IP header to the outer IP header of the encapsulated packets in order to preserve the original TOS information.
- To enable tunnel monitoring for the service connection, selectTunnel Monitor.
- Enter aDestination IPaddress.Specify an IP address at your branch location to which Prisma Access can send ICMP ping requests for IPSec tunnel monitoring. Make sure that this address is reachable by ICMP from the entirePrisma Accessinfrastructure subnet.
- If you use tunnel monitoring with a peer device that uses multiple proxy IDs, specify aProxy IDor add aNew Proxy IDthat allows access from the infrastructure subnet to your branch location.The following figure shows a proxy ID with the service infrastructure subnet (172.16.55.0/24 in this example) as theLocalIP subnet and the branch location’s subnet (10.1.1.0/24 in this example) as theRemotesubnet.The following figure shows the Proxy ID you created being applied to the tunnel monitor configuration by specifying it in theProxy IDfield.
You must configure a static route on your CPE to the Tunnel Monitor IP Address for tunnel monitoring to function. To find the destination IP address to use for tunnel monitoring from your branch location toPrisma Access, select, click thePanoramaCloud ServicesStatusNetwork DetailsService Infrastructureradio button, and find theTunnel Monitor IP Address.
- If you have a secondary WAN link at this location, selectEnable Secondary WAN.Be sure to create a unique IPSec tunnel for each remote network’s secondary WAN;Prisma Accessdoes not support reusing the same IPSec tunnel for secondary WANs in multiple remote networks.Configuring a Secondary WAN is not supported in the following deployments:
- If your secondary WAN is set up in active-active mode with the Primary IPSec tunnel.
- If your customer premises equipment (CPE) is set up in an Equal Cost Multipath (ECMP) configuration with the Primary and Secondary IPSec tunnel.
If you use static routes, tunnel failover time is less than 15 seconds from the time of detection, depending on your WAN provider.If you configure BGP routing and have enabled tunnel monitoring, the shortest default hold time to determine that a security parameter index (SPI) is failing is the tunnel monitor, which removes all routes to a peer when it detects a tunnel failure for 15 consecutive seconds. In this way, the tunnel monitor determines the behavior of the BGP routes. If you do not configure tunnel monitoring, the hold timer determines the amount of time that the tunnel is down before removing the route.Prisma Accessuses the default BGP HoldTime value of 90 seconds as defined by RFC 4271, which is the maximum wait time beforePrisma Accessremoves a route for an inactive SPI. If the peer BGP device has a shorter configured hold time, the BGP hold timer uses the lower value.When the secondary tunnel is successfully installed, the secondary route takes precedence until the primary tunnel comes back up. If the primary and secondary are both up, the primary route takes priority.If you use a different BGP peer for the secondary (backup) connection,Prisma Accessdoes not honor the Multi-Exit Discriminator (MED) attributes advertised by the CPE. This caveat applies if you use multiple BGP peers on either remote network connections or service connections. - Enable routing to the subnetworks or individual IP addresses at the remote network site that your users will need access to.Prisma Accessuses this information to route requests to the appropriate site. The networks at each site cannot overlap with each other or with IP address pools that you designated for the service infrastructure or for thePrisma Accessfor users IP pools. You can configureStatic Routes,BGP, or a combination of both.
- To configureStatic Routes:
- On theStatic Routestab, clickAddand enter the subnetwork address (for example, 172.168.10.0/24) or individual IP address of a resource, such as a DNS server (for example, 10.32.5.1/32) that your remote users will need access to.
- Repeat for all subnets or IP addresses thatPrisma Accesswill need access to at this location.
- To configureBGP:
- Select theBGPtab.
- If you selectNoneforECMP Load Balancing, enter the BGP choices.
- To enable BGP for the remote network connection, selectEnable.When you enable BGP,Prisma Accesssets the time to live (TTL) value for external BGP (eBGP) to 8 to accommodate any extra hops that might occur between thePrisma Accessinfrastructure and your customer premises equipment (CPE) that terminates the eBGP connection.
- To reduce the number of mobile user IP subnet advertisements over BGP to your customer premises equipment (CPE) by summarizing them, selectSummarize Mobile User Routes before advertising.By default,Prisma Accessadvertises the mobile users IP address pools in blocks of /24 subnets; if you summarize them,Prisma Accessadvertises the pool based on the subnet you specified. For example,Prisma Accessadvertises a public user mobile IP pool of 10.8.0.0/20 using the /20 subnet, rather than dividing the pool into subnets of 10.8.1.0/24, 10.8.2.0/24, 10.8.3.0/24, and so on before advertising them. Summarizing these advertisements can reduce the number of routes stored in CPE routing tables. For example, you can use IP pool summarization with cloud VPN gateways (Virtual Private Gateways (VGWs) or Transit Gateways (TGWs)) that can accept a limited number of routes.Prisma Accesssets the community string for aggregated mobile user routes to0xFFFE:0xFFF0.
- To allowPrisma Accessto advertise a default route for the remote network using eBGP, selectAdvertise Default Route.If you selectAdvertise Default Route, be sure that your network does not have another default route being advertised by BGP, or you could introduce routing issues in your network.You must publish your default routes before you make this selection to advertise them. In addition, be sure that your network does not have another default route being advertised by BGP, or you could introduce routing issues in your network.
- To prevent the BGP peer on thePrisma Accessfirewall from forwarding routes into your organization’s network, selectDon’t Advertise.Prisma AccessRoutesBy default,Prisma Accessadvertises all BGP routing information, including local routes and all prefixes it receives from other service connections, remote networks, and mobile user subnets. Select this check box to preventPrisma Accessfrom sending any BGP advertisements, but still use the BGP information it receives to learn routes from other BGP neighbors.SincePrisma Accessdoes not send BGP advertisements if you select this option, you must configure static routes on the on-premises equipment to establish routes back to Prisma Access.
- Enter thePeer AS, which is the autonomous system (AS) to which the firewall, virtual router, or BGP router at your remote network belongs.
- Enter the IP address assigned as the Router ID of the eBGP router on the remote network for which you are configuring this connection as thePeer Address.
- (Optional) Enter an address thatPrisma Accessuses as its Local IP address for BGP.Specifying aLocal Addressis useful where the device on the other side of the connection (such as an Amazon Web Service (AWS) Virtual Private Gateway) requires a specific local IP address for BGP peering to be successful. Make sure that the address you specify does not conflict or overlap with IP addresses in the Infrastructure Subnet or subnets in the remote network.You must configure a static route on your CPE to the BGPLocal Address.
- (Optional) Enter and confirm a passphrase to authenticate BGP peer communications.
- (Optional) If you configured aSecondary WANand you need to change thePeer AddressorLocal Addressfor the secondary (backup) BGP peer, deselectSame as Primary WANand enter a unique Peer and, optionally, Local IP address for the secondary WAN.If you use IPv6 networking in your remote network deployment, you can configureIPv6addresses as well asIPv4addresses. You also need to enable IPv6 networking globally in yourPrisma Accessinfrastructure before you can use IPv6 addressing.In some deployments (for example, when using BGP to peer with an AWS VPN gateway), the BGP peer for the primary and secondary WAN might be different. In those scenarios, you can choose to set a different BGP peer for the secondary WAN.For BGP deployments with secondary WANs,Prisma Accesssets both the primary and secondary tunnels in anUPstate, but follows normal BGP active-backup behavior for network traffic. Prisma Access sets the primary tunnel as active and sends and receives traffic through that tunnel only; if the primary tunnel fails,Prisma Accessdetects the failure using BGP rules, sets the secondary tunnel as active, and uses only the secondary tunnel to send and receive traffic.
- (Optional) EnableQoSfor the location and specify aQoS Profile.You specify QoS options and overall settings on a per-compute location basis in theSettings; however, you can enable or disable QoS or change the QoS profile on a per-location basis here.
- Commit the configuration changes to Panorama and push the configuration out toPrisma Accessfor networks.
- Click.CommitCommit to Panorama
- Click. ClickCommitCommit and Push, and select bothEdit SelectionsPrisma AccessPrisma Accessfor networks and Prisma Access for service setup to push the configuration out to the service.
- ClickOKandPush.
- Configure the IPSec-capable device at the remote network location to set up an IPSec connection withPrisma Accessfor networks.
- Find theService IP Addressfor this remote network connection by selecting, clicking thePanoramaCloud ServicesStatusNetwork DetailsRemote Networksradio button, and viewing theService IP Addressfield.Prisma Accessfor networks infrastructure has assigned this IP address for thePrisma Accessremote network connection, and you must configure this as the peer IP address to set up the IPSec tunnel between the remote network location andPrisma Accessfor networks.
- Check theLocal IP addressfor the device at the remote network location on thepage. If you are performing NAT at the remote network location, thePanoramaCloud ServicesStatusNetwork DetailsRemote NetworksLocal IP addressdisplays the IP address of the device after NAT.
- To secure traffic at the remote network location you must create security policy rules.
- SelectPolicies.
- Select theDevice Groupin which to add policy rules. You can select the Remote_Network_Device_Group or the parent device group that you selected for defining policies to secure the remote network location.
- Create security policy rules. Make sure that you do not define security policy rules to allow traffic from any zone to any zone. In the security policy rules, use the zones that you defined in your template.If a user on your network is denied access to a website, report website access issues before you open a ticket with Palo Alto Networks.
- Enable logging to Cortex Data Lake. You must create and attach a log forwarding profile to each policy rule for which you want to forward logs.
- SelectObjects > Log Forwarding.
- Select theDevice Groupin which you added the policy rules, for example, Remote_Network_Device_Group.
- Adda Log Forwarding profile. In the log forwarding profile match list,AddeachLog Typethat you want to forward.
- SelectPanorama/Cortex Data Lakeas the Forward Method to enablePrisma Accessto forward the logs to Cortex Data Lake. You will be able to monitor the logs and generate reports from Panorama. Cortex Data Lake provides a seamless integration to store logs without backhauling them to your Panorama at the corporate headquarters, and Panorama can query Cortex Data Lake as needed.The following example enables forwarding of Traffic, Threat Prevention, WildFire Submission, URL Filtering, Data Filtering, and Authentication logs to Cortex Data Lake.
- SelectPolicies > Securityand edit the policy rule. InActions, select the Log Forwarding profile you created.
- Commit all your changes to Panorama and push the configuration changes toPrisma Access.
- Click.CommitCommit and Push
- Edit Selectionsand, in thePrisma Accesstab, make sureis selected in thePrisma Accessfor networksPush Scope, then clickOK.
- Commit and Pushyour changes.
- Check the remote network status.See Verify If Remote Network Is Connected to Prisma Access for details.