Select the physical link type from the predefined list (ADSL/DSL, Cable Modem, Ethernet, Fiber, LTE/3G/4G/5G, MPLS, Microwave/Radio, Satellite, WiFi, Private Link1, Private Link2, Private Link3, Private Link4, or Other). With PAN-OS 11.1.3, SD-WAN plugin 3.2.1 and later releases support the additional point-to-point private link types, Private Link1, Private Link2, Private Link3, and Private Link4.1. The SD-WAN interface is configured as a point-to-point private link type (MPLS, Satellite, Private Link1, Private Link2, Private Link3, Private Link4, or Microwave) in its Interface Profile.2. The VPN Data Tunnel Support checkbox is disabled (unchecked) on the SD-WAN Interface Profile. This instructs PAN-OS to forward traffic in clear text outside of the SD-WAN VPN tunnel. Because Private Link1, Private Link2, Private Link3, and Private Link4 link types don't support plain text traffic from SD-WAN branch firewall to SD-WAN hub firewall, you must leave the VPN Data Tunnel Support option enabled when you configure these private link types.On the Hub firewall, the zone name is configured as “zone-to-branch” when condition #1 is met. On the Branch firewall, the zone name is configured as “zone-to-hub” when both condition #1 and condition #2 are met. Panorama automates this step to simplify configuration to ensure proper communication between the hub and branch firewalls. If you have preexisting firewall policies that referenced the old zone name, you must update the policies to reflect the new predefined SD-WAN zone name. Select this setting to make interfaces (where you apply this profile) eligible for the encoding firewall to select them for Forward Error Correction (FEC) or packet duplication. You can deselect this setting so that expensive FEC or packet duplication is never used on an expensive link (interface) where you apply the profile. The Link Type specified for the profile determines whether the default setting of Eligible for Error Correction Profile interface selection is selected or not.
• Leave VPN Data Tunnel Support enabled for public link types that have direct internet connections or internet breakout capability, such as cable modem, ADSL, and other internet connections.
• You can disable VPN Data Tunnel Support for private link types such as MPLS, satellite, or microwave that do not have internet breakout capability except Private Link1, Private Link2, Private Link3, and Private Link4 link types. However, you must first ensure the traffic cannot be intercepted because it will be sent outside of the VPN tunnel.
• (SD-WAN Plugin 3.2.1 and later releases) Because Private Link1, Private Link2, Private Link3, and Private Link4 link types don't support plain text traffic from SD-WAN branch firewall to SD-WAN hub firewall, you must leave VPN Data Tunnel Support enabled when you configure these private link types.
• The branch many have DIA traffic that needs to fail over to the private MPLS link connecting to the hub, and reach the internet from the hub. The VPN Data Tunnel Support setting determines whether the private data flows through the VPN tunnel or flows outside the tunnel, and the failed over traffic uses the other connection (that the private data flow doesn’t use). The firewall uses zones to segment DIA failover traffic from private MPLS traffic. (PAN-OS 10.0.3 and later releases) When you configure DIA AnyPath, you need a way to specify the failover order of individual VPN tunnels bundled in a hub virtual interface or branch virtual interface to which DIA fails over. Specify the VPN Failover Metric for the VPN tunnel (link); range is 1 to 65,535; default is 10. The lower the metric value, the higher the priority of the tunnel (link where you apply this profile) to be chosen during failover.
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If you have only one link at the hub, that link supports all of the virtual interfaces and DIA traffic. If you want to use the link types in a specific order, you must apply a Traffic Distribution profile to the hub that specifies Top Down Priority, and then order the Link Tags to specify the preferred order. (If you apply a Traffic Distribution profile that instead specifies Best Available Path, the firewall will use the link, regardless of cost, to choose the best performing path to the branch.) In summary, Link Tags in a Traffic Distribution Profile, the Link Tag applied to a hub virtual interface, and a VPN Failover Metric work only when the Traffic Distribution profile specifies Top Down Priority.
• Aggressive—(default for all link types except LTE and Satellite) Firewall sends probe packets to the opposite end of the SD-WAN link at a constant frequency.
• Relaxed—(default for LTE and Satellite link types) Firewall waits for a number of seconds (the Probe Idle Time) between sending sets of probe packets, making path monitoring less frequent. When the Probe Idle Time expires, the firewall sends probes for seven seconds at the Probe Frequency configured. If you select Relaxed path monitoring, you can set the probe idle time (in seconds) that the firewall waits between sets of probe packets (range is 1 to 60; default is 60).