VNS3 Release Notes

Version 4 GA – September 29, 2016

VNS3 Version 4 is a major release in the lifecycle of the VNS3 product family.  Version 4 will be the foundation for a sequence of feature dot releases in the near future.  The initial version 4.0 release focuses on updating the 3.5 product line in preparation for the upcoming feature additions. Here is a summary of those changes.

4.3.3 – 8/6/2017

  • VNS3 in AWS now defaults to the enhanced network driver for SRIOV support. (This corrects a situation where there can be packet loss on network packets smaller than 125 bytes due to an AWS/Xen bug.)
  • Alpha Release of firewall enhancements supporting customer created subchains and firewall host and port sets.
  • Improved firewall locking
  • Allow container plugins to be retrieved from site with self-signed cert
  • Improved VNS3 snapshot size and performance with the removal of unnecessary log data from the snapshot.
  • VNS3 snapshot files now include NTP data if configured via API
  • Improved handling of cloud underlay address overlaps with networks across an IPsec tunnel.
  • Support for AWS BYOL Marketplace image added
  • Support for Google Cloud Marketplace (Launcher) added
  • BUGFIX: It was possible for a valid overlay certificate to be seen as invalid, not allowing the overlay client to connect.
  • BUGFIX: Status page sometimes did not show the cloud underlay IP address of overlay clients connected to peered controllers
  • BUGFIX: Re-saving cluster peering information could cause a BGP “best path route” to be lost

4.3.2 – 5/21/2017

  • BUGFIX: Checksum mismatch in topology synchronization could occur in 4.0.x – 4.3.1
  • BUGFIX: Upgrade license synchronization could fail in 4.0.x – 4.3.1
  • Beta release of Overlay Engines

4.3.1 – 5/2/2017

  • Increased API throughput
  • Improved cluster performance for topologies with 16 or more controllers
  • Improved firewall performance
  • Improved UI for Routing and Clientpacks
  • Reduced api server default logging level
  • Significantly enhanced dynamic BGP peering capabilities
  • Reduced size of configuration snapshot files by removing unneeded log data
  • Alpha release of “overlay engines” (ability to add more encryption and tunneling cores)

4.0.10 – 3/22/2017

  • Fixed issue with import of VNS3 Snapshot from Controller using default addressing and Clientpack Upgrade License
  • Fixed issue with new IPsec selection between NAT-Traversal encapsulation and Native IPsec
  • Fixed issue with NAT-Traversal NAT firewall rules
  • Upgraded IPsec subsystem

4.0.8 – 1/13/2017

  • Fixed issue with IPsec subsystem restart
  • Fixed issue with internal service listening on port 3001
  • Fixed issue with Snapshot import backward compatibility to allow import of Snapshots created on legacy versions of VNS3
  • Cleaned up default Overlay Addressing to move to sequential default Clientpacks

4.0.1 – 12/23/2016

  • VNS3 UI stylesheet and text updates
  • Cleanup of License and Clientpack files
  • Secured some Clientpack file directories
  • Fix issue with reboot – redirect to home page to avoid possible resubmit of reboot

4.0 – 9/29/2016

  • Update of the VNS3 hardened OS to version 4.0
  • Update of all underlying components of VNS3 including the IPsec subsystem, TLS server, Routing mechanism, Monitor, and Certificate Generator
  • Redesigned UI to take advantage of paginated, sortable and searchable tables for Peered connections, Overlay Network devices, Clientpacks, and IPsec tunnels
  • Improved IPsec controls including NAT-Traversal control on a per endpoint basis, fully supported IKEV2, Exo Ping with selectable source interface, and the ability to disable a tunnel
  • Configurable HTTPS certificates for Web UI and API access
  • Additional Overlay Network authentication and encryption choices for improved security
  • Increased entropy for added certificate generation randomness

Version 3.5 Dot Releases since April 30th, 2014

Beta – April 1st, 2014 | Alpha – January 28th, 2014 VNS3:vpn and VNS3:net had a major release in April 2014, Version 3.5 A series of dot releases have been made since then to address feedback from customers on the overall release, the new L4-L7 Container system and to support VNS3:turret in private clouds and virtual infrastructures.  Here is a summary of those changes.

3.5.3 (LTS) – 7/31/2017

  • Fixed a potential non-reproducible condition where the IPsec subsystem hangs.

3.5.2 – 9/23/2016

  • This release comes ahead of the 4.0 release and will be the “Long Term Server” version for the 3.5 product line.
  • Upgraded IPsec system
  • Bug fixes for the Free and Lite Editions registration and licensing process available in major cloud catalogs.

3.5.1.14 – 3/18/2016

  • This release now allows use of an instance as an HA backup controller via the VNS3:ms system.
  • Disabled SSLv3
  • Relax firewall constraints allowing more customer control using SNAT and MASQUERADE
  • Sorts the Endpoint section of the IPsec page by name, as it is in the Status page table.
  • More robust startup code for secondary network interfaces.
  • Interface Routes now take an optional gateway specification.
  • Overlay server can use jumbo frames when available via change to client side config file.
  • Allow PREROUTING_CUST and POSTROUTING_CUST customer firewall chains to use and valid jump target for the NAT table.

3.5.1.10 – 10/18/2015

  • Increased IPsec interoperability – added support for more Diffie-Hellman groups, additional hashings (sha2_512, sha2_256). Updated IPsec subsystem for increased performance, support and foundation for future IPsec HA features and functions. Memory utilization improvements to support larger VNS3 topologies with more Peered controllers, Overlay Network clients, and IPsec tunnels. Added more error checking to IPsec endpoint configuration page extra configuration parameters box. BUG FIX: The reset_defaults defaults feature was incorrectly reverting the API password to the original default. BUG FIX: License import was incorrectly parsing

3.5.0.8 – 6/3/2015

  • Improved performance of the Status page with a large number of IPsec tunnels. Previously the full status of each tunnel was being retrieved (all of the information seen on a tunnel home page). Now only the necessary status information is retrieved.
  • Restart of SNMP agent by autonomics. Previously if the SNMP daemon crashed a reboot was required to restart it. Now the autonomics agent recognizes the failure and restarts it.
  • Updated logos, links and copyrights for Cohesive Networks
  • Reverted a behavior introduced in 3.5.0.4 where we attempted to streamline the import of VNS3 snapshot into a replacement instance where the IPsec connections were made with native IPsec protocol (ESP / Protocol 50). The new approach did not significantly streamline the process, and created other artifacts. The proper process for migrating a VNS3 instance snapshot to a new instance with native IPsec connections is as follows:
    • Download current snapshot from existing VNS3 instance.
    • Launch replacement instance in same cloud VPC/VLAN and Security Groups/Port Filtering mechanisms.
    • Re-map public IP from existing instance to the new instance.
    • Reboot the new instance and access it’s web UI via the new address to ensure mapping has completed.
    • Import the snapshot file from previous instance into the new instance.
    • It will re-boot, and the migration should be complete.
  • Internal firewall limitation on number of API calls per 5 seconds was increased from 20 to 50.
  • Fixed a bug where the Edit of a tunnel “ping host” or “ping host interval” caused the tunnel description field to be cleared.
  • Added a feature allowing edit of the local or remote subnet of a tunnel. Previously these could not be changed. WARNING: Changing these values will remove the Phase2 IPsec SA and create a new one with the new values. This operation should only be used to correct a misconfigured tunnel that is not carrying traffic.
  • Base VNS3 hardened OS updated with latest security patches.
  • Modified “grub” command line so console output would be seen on AWS HVM images via the “get console log” command. This capability was missing in 3.5.0.7.

3.5.0.7 – 2/2/2015

  • Replaced one of the command-line-based ip address lookup services used outside of clouds with meta data services to get public ip of the VNS3 instance.
  • Added console display of the ip address on the “outer” network adapter, which is usually eth0. This is quite useful in virtualization consoles, or virtual environments without full console support.
  • Routes can now be made which are “advertisements” only, not requiring that there be an attached network to the VNS3 Controller itself, but rather a network the Controller knows how to route to.
  • Fixed a bug where in some cases the Controller would not properly display the “up/down” events on an IPsec tunnel’s home page.

3.5.0.6 – 1/21/2015

  • Fixed bug in multicast retransmitter startup/shutdown.
  • Added better IP address display logic for private-cloud or datacenter-based VNS3 systems.
  • Container UI now lets you upload containers or docker files from local filesystem, eliminating private cloud users from needing URL-accessbile object storage like S3.
  • Improved API support for VNS3:ms and automatic snapshot retention.
  • Updated the working set size of the multicast transmitter to a more “modern” size.
  • Fixed a bug where imported snapshots contained the information for managers added via upgrades – but did not import properly.
  • Fixed a bug where snapshots with pre-3.5 licenses could not receive upgrades which enabled containers, added containers or added container images

3.5.0.5 – 11/23/2014

  • Fixed a bug where using clientpack tags would cause extraneous mesh synchronization events.
  • Remove remote support keys from snapshots, so that they are not included in the snapshot and not imported if they are included in an older snapshot.
  • Fixed a bug where tunnels made without descriptions could cause Web UI display errors or API call errors.
  • Fixed a bug where NAT-ing issues could occur in environments where ETH1 is the “outer” network adapter instead of eth0.
  • Improved support for network overlaps between subnets behind VNS3 and across and IPsec tunnel.
  • Eliminated possible file handle exhaustion problem which was theoretically possibly with large number of tunnels (hundreds).
  • Fixed bug where a BGP route could be lost when doing transitive routing for an Amazon VPC mesh.
  • Improved autonomics of BGP system.
  • Fixed a bug where the autonomics system agent could fail, causing other processes to not be healed/restarted.

3.5.0.4 – 9/2/2014

  • Allow use of signed HTTPS URLs in the docker/lxc container import capability.
  • Improved error handling in create_ipsec_tunnel API call.
  • Re-moved container/image meta-data from snapshots.  Snapshots currently do not include Container information.

3.5.0.2 – 7/16/2014

Fixed omission where Status page stopped displaying “Connected”/”Disconnected” status in green or red as appropriate.

Version 3.5 GA – April 30th, 2014

Beta – April 1st, 2014 | Alpha – January 28th, 2014 Version 3.5 that contains additional features and user-requested updates.  Version 3.5 is currently available in AWS Marketplace and on request.

Fixed Issues

  • Import Snapshot improvements for better compatibility with upgrade/stackable licensing.
  • Runtime Status page load slowness when a large number of IPsec tunnels are connected (introduced in 3.0.4).

New Features

TrendMicro Integration Use both VNS3 and Trend Micro Deep Security central management platform to simplify and streamline security operations. Integrate your security functions across all of your physical, virtual and cloud environments. “Routing Robot” The new “routing robot” keeps your topology connected. The client-side routing agents automatically manages any cloud network modifications by checking the network addresses with  the VNS3 Manager routing agent. Automatic routing saves network operators time and resources while increasing network uptime. Docker Integration VNS3 3.5 now provides the ability to co-create customizable, flexible networks with Docker containers built in, and tailor virtual networking functionality to specific use cases when extending corporate and data center networks to public, private and hybrid clouds. VNS3 3.5 delivers a new way for partners and customers to collaborate on the creation of custom network functions – including proxy, reverse proxy, WAN optimization, load balancing, and more – giving IT teams more control over network security and connectivity. VNS3 OS Update The VNS3 Network OS (specially tuned network specific OS based on Ubuntu) has been updated. Component Updates The components of the underlying VNS3 network stack have been updated to the latest versions and ensuring backward compatibility with all previous supported versions of VNS3. Support for GRE Tunneling VNS3 Manager can now provide Layer 2 Bridging over GRE as well as GRE tunneling over IPsec.  This increases the connectivity options when building hybrid clouds between parties that have connection agreements like AWS direct Connect and Equinix Data Centers worldwide Clientpack Road Warrior Support Features Clientpacks now include a per-pack detail popup that shows connection information, specific log messages for that clientpack and a regenerate clientpack feature.  Quickly and easily regenerate and redistribute any lost or compromised clientpacks to get  remote users up and running. Scriptable Networks Additional Support The Clientpack API call fetch_next_clientpack now allows the user to specify a range of IPs to fetch the next clientpack.  This feature released backed by popular demand as more and more users are building their cloud-based Overlay Networks automatically and on-demand. System Health UI Addition Added displays for basic VNS3 Manager system health information like memory utilization, swap and disk space. Additional Key Randomness Added entropy for added randomness when generating larger key sizes for the Overlay clientpacks. Support Access Improvements Simplified the Multi-party/factor support access allowing customers to easily regenerate new or revoke outstanding ssh credentials.

Version 3.0.4 – November 26th, 2013

Version 3.0.4 will be the last release in the 3.0 line before the upcoming 3.5 release.  This release is an update rollup of the VNS3 across all cloud deployment targets that contains fixes and feature updates.

Fixed Issues

  • Version 3.0.1 clientpack pre-configured addresses inside the .conf and .ovpn clientpack files were not updated in the event of a new public IP address.
  • License upgrades increasing the number of clientpacks where not being imported correctly into newly created snapshot files.

New Features

VNS3 Firewall Upgrade Outbound NAT capabilities have been added to allow VNS3 to replace the AWS VPC NAT AMI. When running Private VPCs you can use your VNS3 Manager in the place of the NAT AMI reducing your deployment complexity and saving the NAT AMI runtime fees. IPsec Tunnel Management Improved IPsec tunnel state to allow for easier management and troubleshooting.  Tunnel home pages now show Phase 1 (IKE) and Phase 2 (IPsec) remaining lifetime.  It also shows the IPsec SA inbound and outbound “SPIs” (Security Parameter Index).  These designations are shared with the connecting endpoint and are useful debugging connection issues. Cloud Consistency Consistency improvements for clouds other than Amazon EC2.  All VNS3-supported clouds are now based off of a common source tree which differentiates cloud environment by configuration settings.  This creates a much more uniform customer experience when federating cloud networks. Larger Web UI Keysize The SSL Certificate for the VNS3 Manager Web UI Server has been upgraded to 2048 bits. Increased Overlay Network Security The overlay network has been enhanced to use a high level negotiation handshake which improves VNS3 Manager resilience against some DDOS attack attacks. Check IN/Check OUT Clientpacks can now be marked as “checked in” or “checked out” via the Web UI.  This functionality was previously only controllable via the API. Shutdown Removal The “Shutdown” link has been removed from the Web UI.  Please use the cloud or virtual infrastructure console to shutdown an instance of VNS3. Browser Topology Naming VNS3 Topology Name now shows up in Web browser title bar.  This makes it easier to work with multiple VNS3 Managers and topologies via the UI. Native IPsec Improved native IPsec interoperability with older (approaching EOL) Cisco routers.

Version 3.0.1 – April 17th, 2013

This is a minor release that contains a bug fix and feature updates.

Fixed Issues

Fixed potential race condition in version 3.0 There is a set of conditions that can cause newly created IPsec Endpoints and Remote Subnet additions to not be appropriately added to the VNS3 IPsec Subsystem. The UI will display the connections, but the tunnels will not be negotiated and will not return any log messages. Version 3.0 users will be contacted separately with patch and upgrade information but are also free to contact support.

New Features

“NAT’ing” Outbound NAT capabilities have been added to allow VNS3 to replace the AWS VPC NAT AMI. When running Private VPCs you can use your VNS3 Manager in the place of the NAT AMI reducing your deployment complexity and saving the NAT AMI runtime fees. Port Forwarding Use your VNS3 Manager as the “front door” to your VNS3 virtual network and your VPC by specifying both port and src/dst IP to allow you to forward traffic to specific hosts protected in your VPC. Enhanced VLAN Support Dual honed network support for clouds that use eth1 for VLAN capabilities (IBM SCE, GoGrid, ElasticHosts, etc.). In these clouds just a click on the “Private VLAN” menu item and enter the VLAN network and gateway information. SNMP Support for the most popular MIBs! VNS3 now provides SNMP support for most major commercial and open source monitoring systems. Network monitoring systems like Zenoss and Cacti. Easier Client Configuration Clientpacks are now available via a single configuration file for Linux/Mac, Windows, iOS and Android target environments. Additionally each clientpack configuration file comes pre-configured with remote entries for the VNS3 Manager already included. Simply load the clientpack to the configuration directory on your cloud servers to join the VNS3 virtual network. No additional configuration necessary. Enhanced Snapshot Management The VNS3 snapshot feature is a powerful means for recovering and re-creating VNS3 Managers in the cloud. Now it has gotten easier allowing you to use the username/password set embedded in the snapshot – or to set new UI and API credentials for you rnew VNS3 installation.

Version 3.0 – September 12, 2012

This is a major release that contains feature updates. VPN-Cubed was rebranded to VNS-Cubed (VNS3) as part of this release.

New Features

Expanded Network Sniffer Functionality VNS3 Network Sniffer (Network Interface Monitor) can monitor either the tun0 (Overlay Network) or eth0 (IPsec Connections) interfaces. IPsec troubleshooting no longer requires intervention from the Cohesive Networks support team. Simply monitor the interface for detailed packet/traffic analysis.

Improved IPsec Tunnel Management Increased visibility of IPsec tunnel status on both the UI and API. Tunnel pages display all negotiated tunnel parameters, encryption domains, tunnel history and log messages for the specific tunnel. The tunnel pages also allow restart and delete of individual tunnels.

License Upgrade Upgrading between Editions or adding capacity to SME/Enterprise now requires no operational window. Upgrades are applied to running Managers via the License Upgrade feature and additions are immediately available.

Updated API Deploy scriptable cloud networks using an expanded REST API. Not only have the number of calls increase to provide greater programatic control over a VNS3 topology, individual calls are now more powerful.

CloudWAN Use your VNS3 topology as your low cost, rapidly deployable global WAN leveraging the globally distributed public cloud data center network. The CloudWAN feature allows users to establish connectivity between multiple endpoints to launch a “telco-ready” network.