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Topics - Wanos

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Installation / Dell 1950 / Dell 2950 / HP ML350 G5 NIC
« on: March 31, 2014, 02:02:07 AM »
Broadcom BNX Network Interfaces not coming online on Dell 1950/ 2950 / HP ML350 G5 / HP ML360 G5 Similar.
An error during boot up is briefly displayed similar to "Can't load firmware file bnx2/bnx2-mps"

Current workaround:
Please uncomment the following line in /opt/
#rmmod bnx2 && modprobe bnx2

Reset just to be sure everything works after boot up:

After reboot verify:
'ifconfig' should display tun0

FAQ / Will it work with only one device?
« on: March 27, 2014, 09:23:01 AM »
Can I use this with only one device?

Unfortunately due to deduplication and compression, both devices are required.

Installation / ESX vSwitch Topologies without physical NIC's
« on: March 25, 2014, 02:16:21 PM »
First see for configuration without physical interfaces

Although it is best to run with physical interfaces, Wanos can run in-path without the physical network interfaces. Here are two more scenarios to achieve this:

1) When the routing function is handled by a virtual router or firewall that are not establishing encrypted tunnels, the Wanos device can be placed in front of the vRouter/vFW or on the Wan side in other words. Wanos is therefore placed between the router and the ISP.

2) When the routing function is handled by a vRouter/vFW and it also builds encrypted tunnels e.g. IPsec, Wanos can be placed between two vRouters/vFW's.

In both scenarios the lan0 and wan0 still needs to be in separate vswitches/port groups vlans with promiscuous enabled to bridge the traffic flow.

Installation / Firewalls
« on: March 17, 2014, 10:06:48 AM »
When a firewall is used in the WAN in-between two Wanos appliances, it needs to permit IPComp (IP Proto 108) traffic and TCP option 76.
GRE Encapsulation is also available.

UDP Encapsulation is often the simplest method to work around firewalls, but introduce additional overhead.

Configuration / Traffic Policies
« on: March 16, 2014, 02:13:34 PM »
Traffic policies are optional in a standard point to point network, but recommended to ensure only the intended traffic gets optimized.

In a point to multipoint network, when some remote sites don't have Wanos devices, a Traffic Policy is required to by-pass these sites. For example in the following network, only one remote device is placed in the network at one site. Since there are multiple remote sites rule #98 and #99 are created:

FAQ / UDP Optimization
« on: March 15, 2014, 07:18:27 PM »
What about UDP Optimization?

Yes, both deduplication and compression for UDP is available from version 1.2.1.

FAQ / Change IP address from the Command Line
« on: March 13, 2014, 12:01:05 PM »
How do I change the IP address from the command line? (e.g. No access to the Web GUI)

Run the command: wanos-cfg

FAQ / Supported Network Interface Cards
« on: March 12, 2014, 07:16:47 PM »
Which Network Interface Cards are supported?

Generally most common generic cards are supported by default.

FAQ / Bi-directional optimization
« on: March 08, 2014, 08:33:34 PM »
Is it possible to optimize the upstream direction?

Yes, fully bi-directional.

FAQ / Wanos Open Source Wan Optimization
« on: March 08, 2014, 04:18:14 PM »
Is Wanos open source?
Can I have the source code?
Can I modify the source code?

Wanos Express versions released free will always be free, but not open source wan optimization per se. Opensource and Wan Optimization enthusiasts that are interested in contributing and making the technology more accessible are encouraged to get in touch.

Companies looking to integrate wan optimization into their feature set, should please have a look at the OEM Wan Optimization option.

How to help?
  • The easiest way to help is to simply start using wanos. Deploy in a network and let us know what the most essential next feature is.
  • Tell a friend, colleague, anyone that can benefit from wan optimization.
  • Wanos working well in your network scenario? Great, post the results.
  • Tell us about your hardware in the hardware section
  • Found a way to deploy the solution that has not yet been documented? Fantastic, let us hear about it and someone might benefit from this contribution.

Want more?
Developers, Linux and Networking skills are very valuable. Please get in touch.

FAQ / Hardware limits (Wanos Express vs Wanos Plus)
« on: March 06, 2014, 11:21:00 AM »
Note: This info is probably outdated. Please see our Wan Optimization Products page for up to date info on Express. Recently additional features have been enabled and more bandwidth added.

Wanos Express (Free)
What is the minimum required RAM? 2GB
Max optimized remote sites? 1
What is the required disk space? 64Gb
What is the most important for peak performance? 1) CPU processing power when set to 'high'. 2) Disk IOPS (SSD)
Will adding more RAM make a difference? Yes, frequently used byte patterns will be buffered in memory

Wanos Plus
What is the minimum required RAM? 2-4 Gb
What is the maximum RAM? 64-256 Gb
Max sites? Depending on hardware & configuration 1 - 512
What is the minimum required disk space? Minimum 64 GB

FAQ / Selling Commercial Version
« on: March 04, 2014, 09:27:21 AM »
We have clients looking for an entry level Wan Optimization solution. Can we sell Wanos?

Please see:

FAQ / Guaranteed Support
« on: March 04, 2014, 09:25:18 AM »
Is a commercial version available since I need guaranteed support?

Yes, support is available:

Features / Deep Packet Inspection
« on: March 04, 2014, 09:22:04 AM »
Deep Packet Inspection.

Available from v4.0 beta

Features / Forward Error Correction
« on: March 04, 2014, 09:20:30 AM »
Forward Error Correction can be implemented but has not been requested frequently, hence this is not yet top priority. Please add commentary if this feature is required.

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