: Features Introduced in SD-WAN Plugin 3.2
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Features Introduced in SD-WAN Plugin 3.2

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Features Introduced in SD-WAN Plugin 3.2

New features for SD-WAN 3.2.
The SD-WAN Administrator’s Guide 3.2 provides information about how to use the SD-WAN plugin features in this release.

What’s New in SD-WAN Plugin 3.2.0

Key features introduced with the SD-WAN plugin 3.2.0 release:
New SD-WAN Feature
Description
IKEv2 Certificate Authentication Support for Stronger Authentication
The SD-WAN plugin now supports the certificate authentication type in addition to the default preshared key type for user environments that have strong security requirements. We support the IKEv2 certificate authentication type on all SD-WAN supported hardware and software devices.
Public Cloud SD-WAN High Availability (HA)
You can now reduce complexity and increase resiliency by adding HA to your SDWAN for next-generation firewall public cloud deployments. Configure up to four IP addresses per SD-WAN interface, allowing you to deploy SD-WAN on public clouds to achieve failover in HA active/passive configurations. Minimize the downtime and ensure session survivability using the active/passive HA failover in public cloud SD-WAN environments.
SD-WAN IPv6 Support
SD-WAN supports IPv6 interfaces, beginning with SD-WAN plugin 3.2.0. You have the flexibility to onboard branch locations in a hybrid IPv4/IPv6 environment or a full IPv6 environment. SD-WAN IPv6 support uses intelligent application path steering technology to provide application reliability and SLAs for IPv6 environments. SD-WAN IPv6 support includes the following changes:
  • You can configure a physical Ethernet interface to have a static IPv6 address.
  • You can configure a static IPv6 route.
  • The Advanced Routing Engine allows you to configure IPv6 BGP routing.
  • SD-WAN provides health monitoring for the next hop from SD-WAN-enabled IPv6 interfaces and health monitoring for a VPN tunnel endpoint.
  • Path monitoring now allows you to use addresses from an IPv4 VPN address pool or an IPv6 VPN address pool.
  • When an SD-WAN interface is enabled for IPv6, Auto VPN configuration creates a DIA interface named sdwan.9016, which has IPv6 physical interfaces as member interfaces. The default IPv6 route points to the sdwan.9016 interface. The user interface allows you to specify whether the virtual interface is a DIA IPv4 interface, DIA IPv6 interface, or tunnel interface (which can have a mix of IPv4 tunnel interfaces and IPv6 tunnel interfaces). An Ethernet interface can belong to both the sdwan.901 virtual interface and the sdwan.9016 virtual interface.
SD-WAN supports dual stack in the event that one ISP provides you with only an IPv4 address and another ISP provides you with only an IPv6 address. You will create separate virtual SD-WAN interfaces. An IPv4 DIA virtual interface will have Ethernet with an IPv4 address, while an IPv6 DIA virtual interface will have Ethernet with an IPv6 address.
If a DIA link between a branch and a hub has only IPv6 addresses on the interfaces at each end, the tunnel is created using IPv6 addresses. If the branch and hub have IPv4 addresses on the interfaces, the tunnel is created using IPv4 addresses. If the branch and hub use both IPv4 and IPv6 addresses on the interfaces, the tunnel is created using IPv4 addresses only (IPv4 addresses are preferred). If there is a mismatch of address family identifiers (AFI) between the hub and branch, no tunnel configuration is generated for that pair of interfaces.
Similarly, a VPN address pool can have both IPv4 and IPv6 addresses configured, in which case IPv4 addresses are preferred for the tunnel interface and tunnel monitoring. If the IPv4 addresses in the VPN address pool are exhausted, then IPv6 addresses are used for the tunnel interface and tunnel monitoring.
You can also have independent IPv4 VPN address pools that contain IPv4 addresses and IPv6 VPN address pools that contain IPv6 addresses.

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