flexiWAN Release 5.3.1

Release 5.3.1 includes:

  • flexiManage release 5.3.10-14

  • flexiEdge release 5.3.17-20

Release Notes:

flexiWAN is the world’s first open source SD-WAN & SASE with a modular and open architecture offered as a cloud service in a SaaS business model.

Version 5.3.1 was released on July, 2022. This version introduces new features such as BGP support, Quality Based Routing for Local Breakout links, GCP flexiEdge support, Munitoring Link Status, and more.

There are three options for hosting flexiManage, each relevant for companies with a different set of requirements. All of these options come with support services.

  • SaaS model in a shared environment - flexiManage hosted by flexiWAN

  • Dedicated environment - a dedicated, white-label deployment just for you

  • Self-hosting - self-hosting of flexiManage is typically best for large service providers

To learn more information about our offer and understand which of these hosting options are best for your company, please read our blog post. flexiWAN pricing information can be found here.

Contact us.

New in this release:

  • Support for BGP

  • Support for Quality Based Routing (QBR) on DIA links

  • Support flexiEdge on Google Cloud

  • Report Interfaces’ Link Status in flexiManage

  • Allow starting router on DHCP or LTE failure

  • Tunnel scale enhancements

  • Allow for PPPoE update for unassigned interfaces after registration

  • Allow disabling remote worker firewall system rules

  • Bug fixes

  • 5.3.17 - fix LTE stuck when no signal, FRR issues with BGP, GCP agent workaround

  • 5.3.20 - fix crypto engine bug for AVX-512 instructions, fix route installation with dev, fix static route recovery with onlink, fix upgrade on repository blockage

Supported and Planned Features

The list of supported and planned features description can be found in the Feature Overview page

Please send us your feature needs and prioritization.

REST API changes in this release

List of REST API Changes



Backward Compatible?

ALL /devices

Interface routing can inluce one of: “OSPF”, “BGP”, “OSPF,BGP”, “NONE”


ALL /devices

OspfConfigs contains a new boolean field - redistributeBgp.


ALL /devices

DeviceRequest contains new “bgp” and “routingFilters” sections


ALL /devices

Interfaces extended with a linkStatus property


ALL /organizations, /organizations/{id}, /organizations/select

Include new description field


ALL /firewallpolicies, /firewallpolicies/{id}

Firewall inbound rules with more than 1000 ports will be rejected


ALL /mlpolicies, /mlpolicies/{id}

Link-Quality path selection policy with DIA label is not rejected


Potential Backward Incompatible Changes

List of Potential Backward Incompatible Changes



Prevet provisioning of more than 1000 ports in firewall policy at a time

Firewall inbound rules with more than 1000 ports will be rejected

Known Issues

List of Known Issues



During login, the username email is case sensitive

The email used in account creation and login is case sensitive

Slow websocket connection during heavy load

During heavy traffic load, device connection to flexiManage may be impacted

Tunnel loss and RTT during heavy load

During heavy traffic load, loss and RTT calculation might represent biased values

On unstable/slow connections some jobs may be presented as failed on timed out although succeeded

In most of the cases, the jobs have succeeded and the system recovers itself by re-syncing the configuration

Switching WiFi from 2.4Ghz to 5Ghz doesn’t restart DHCP server

To restart the DHCP server for the WiFi interface, stop and start the flexiEdge router

Inbound WAN ICMP with small identifier is dropped

Inbound WAN ICMP with Identifier smaller or equal to 1024 may be dropped

Overlapping subnets may cause an error in flexiEdge UI

Configuring overlapping subnets on multiple interfaces in flexiEdge UI may cause an error. Once error detected, resetting the configuration will solve the Issues