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Hillstone E-Series vs OpenVPN Access Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 15, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Hillstone E-Series
Ranking in Enterprise Infrastructure VPN
22nd
Average Rating
9.0
Reviews Sentiment
7.7
Number of Reviews
10
Ranking in other categories
Firewalls (39th), SSL VPN (9th)
OpenVPN Access Server
Ranking in Enterprise Infrastructure VPN
1st
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
57
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2026, in the Enterprise Infrastructure VPN category, the mindshare of Hillstone E-Series is 1.6%, up from 0.5% compared to the previous year. The mindshare of OpenVPN Access Server is 12.6%, down from 14.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Infrastructure VPN Mindshare Distribution
ProductMindshare (%)
OpenVPN Access Server12.6%
Hillstone E-Series1.6%
Other85.8%
Enterprise Infrastructure VPN
 

Featured Reviews

TahirMahmood - PeerSpot reviewer
IT Manager at Zubair Feeds
Offers good features like URL filtering, IPS, and IDS to users
We received an update for the tool in July. The update was provided for the tool as there was a problem with the firewall, where too much memory was consumed, and the firewall was hanging a lot. When we updated the tool's features, everything became okay. The tool only had some memory-related problems. It took the tool a month to fix the issues.
Fedir Plotnikov - PeerSpot reviewer
Senior Cloud Infrastructure Engineer at Globant
User management has simplified internal VPN access and now provides clear visibility and control
I do not use any role defining features because it is a really small organization, so it wasn't required, but it is there if needed. I have seen OpenVPN Access Server integrations such as LDAP, RADIUS, PAM, and SAML, but again, due to the size of the company, it wasn't necessary and we didn't have it inside the company. However, it was nice that it is already embedded inside. We haven't used much in terms of integrations with OpenVPN Access Server, so it's hard to say. We only used basic features there. My advice for others looking to implement OpenVPN Access Server is that it is at least worth trying if you need a fast and easy implementation solution without technical overhead and you just need VPN access, which is supported by all operating systems and mobile operating system vendors. It is definitely worth a try. OpenVPN Access Server was purchased directly from the website, not on the AWS marketplace or through a partner purchase. I would rate this product an overall eight out of ten.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"With Hillstone, TCO and ROI are very good, it's an easy sale."
"Working with the Hillstone E-Series has, from a remote perspective, allowed me to give my clients a secure connectivity."
"The most valuable features of the Hillstone E-Series are its hardware capacity, innovation, and the throughput that the hardware can take."
"Very reliable solution with good scalability and straightforward implementation."
"Five out of five ROI."
"Stability-wise, I rate the solution a ten out of ten."
"The most valuable feature of the solution is the ransomware protection that the tool offers."
"The most valuable feature of the Hillstone E-Series is its user-friendliness."
"The compatibility with almost any Linux operating system, and how easy it is to write scripts and generate keys for people to use and log in. I found it easy to deploy quickly."
"What I appreciate the most about OpenVPN Access Server is that it's very easy to set up."
"It is easy to use."
"In my opinion, the most useful function in OpenVPN Access Server is the user management feature, which I regularly use to manage the users and the concurrent sessions."
"The most valuable thing about OpenVPN Access Server is its ease of use."
"The product provides secure internet connections and helps with faster downloads."
"The most valuable feature of OpenVPN is that it is open source. I can do anything with the solution, such as change, build, and collect. Additionally, it is safe to use the solution and there are frequent updates."
"I would recommend this solution to other people."
 

Cons

"The tool needs to improve its price."
"The current usage reporting is very basic."
"Support from Hillstone E-Series has a shortcoming that needs improvement."
"SSL VPN license cost is not cheap."
"The tool provides just a general report. It does not provide a granular report. Hence, the tool should work on its reporting feature."
"I am not sure if this solution offers active directory integration. Adding that feature will definitely be an advantage."
"The solution doesn't have a web proxy built into the system like Sophos. This is something they should work to change."
"The licensing model is very complex with many subcategories of licenses you can purchase. They could make it more simplified for customers to understand."
"It requires some experience of Linux server configuration to set it up."
"When there are too many concurrent users trying to connect at the same time, there may be a bit of a bottleneck."
"It could include a configuration wizard so that users who do not follow instructions well can configure a connection."
"If we had to create something for someone who was not necessarily tech savvy, I had to set that up on their computer, I had to write "read me's" and other things so that they could install their client and then connect to the VPN by themselves. So it was hard to set up for people who are not tech savvy."
"The upgrade path from older versions was more difficult than we wanted to tackle, so we ran an older version of the software for longer than I wanted. Patching, updating, and migrating to newer versions was a problem for us. That said, we were on a rather old version that I inherited yet it worked rock solid."
"If there was a Graphical User Interface to help streamline the configuration, I believe OpenVPN would probably venture more into the non-geek realm as it were."
"Working on a faster connection might be a good idea for the product's next release."
"The connections could be faster and more stable."
 

Pricing and Cost Advice

"Hillstone's pricing is economical and neither very high nor very low."
"The licensing model is very complex with many subcategories of licenses you can purchase. They could make it more simplified for customers to understand."
"The cost per year for licensing, and hardware, is approximately $850 for the basic plan."
"The tool's pricing is reasonable. It depends on the model. The product's pricing is around 600 USD. You need to buy a software license to activate the features. You need to pay around 150 USD for that."
"One of the valuable features of OpenVPN is that it is free for a single user."
"It is free, you buy support."
"The product offers yearly as well as monthly subscription plans. It has moderate pricing."
"The product's pricing is good value, definitely. It is one of the best features, I would say. Evaluate the product before seeing which type of licensing is good for you. I think there is a good evaluation method available for OpenVPN, so you can just evaluate if it meets your needs. Then go forward with the right licensing policy."
"The solution was free of charge."
"With regard to setup cost, pricing and/or licensing, the simple answer is that you'll need to set aside some time to learn it and experiment with it."
"It is an open-source solution, so we don't pay for anything."
"The price point is fantastic since it is free."
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Top Industries

By visitors reading reviews
Comms Service Provider
13%
Construction Company
12%
Financial Services Firm
10%
Manufacturing Company
8%
Computer Software Company
12%
Comms Service Provider
11%
Financial Services Firm
8%
University
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise1
By reviewers
Company SizeCount
Small Business36
Midsize Enterprise8
Large Enterprise16
 

Questions from the Community

What needs improvement with Hillstone E-Series?
We received an update for the tool in July. The update was provided for the tool as there was a problem with the firewall, where too much memory was consumed, and the firewall was hanging a lot. Wh...
What is your primary use case for Hillstone E-Series?
I use the solution in my company for site-to-site VPN, SSL VPNs, URL filtering, IPS, IDS and all the other features which are available in the firewall.
What advice do you have for others considering Hillstone E-Series?
Our company did not use the tool's micro-segmentation features. There were no issues while integrating the tool. I have not used any AI in the tool. I recommend the tool to others. I rate the tool ...
How does Fortinet FortiClient compare with Open VPN Access Server?
Fortinet FortiClient is a feature-rich solution that is easy to use and deploy without sacrificing safety and security. It has a very fast connection rate and has a built-in VPN. With this solution...
What do you like most about OpenVPN Access Server?
OpenVPN Access Server is a simple and easy-to-use solution that I can use myself without anybody's help.
What is your experience regarding pricing and costs for OpenVPN Access Server?
Regarding pricing for OpenVPN Access Server, I don't remember all the details exactly, but I believe it is really flexible and even provides something like free trials, so anyone can try it. It was...
 

Also Known As

No data available
OpenVPN
 

Overview

 

Sample Customers

Bank of China Macao, Instituto Tecnológico Bolivariano, Ministry of Labor in San Salvador, FEDCO
Verizon, Amazon, Disney, HP, Microsoft, IBM, Samsung
Find out what your peers are saying about Hillstone E-Series vs. OpenVPN Access Server and other solutions. Updated: April 2026.
889,955 professionals have used our research since 2012.