Remote-access Guide

ipsec vs. ssl vpns for secure remote access

by Royce Parisian Published 2 years ago Updated 1 year ago
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The main difference between IPsec

IPsec

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning …

and SSL

Transport Layer Security

Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), both of which are frequently referred to as 'SSL', are cryptographic protocols designed to provide communications security over a computer network. Several versions of the protocols are in widespread use in applications such as web browsing, email, Internet faxing, instant messaging, and voice-over-IP (VoIP).

VPNs is the endpoints for each protocol. While an IPsec VPN allows users to connect remotely to an entire network and all its applications, SSL VPNs give users remote tunneling access to a specific system or application on the network.

Whereas an IPsec VPN enables connections between an authorized remote host and any system inside the enterprise perimeter, an SSL VPN can be configured to enable connections only between authorized remote hosts and specific services offered inside the enterprise perimeter.

Full Answer

What does SSL and VPN mean?

SSL VPN (Secure Sockets Layer virtual private network): An SSL VPN (Secure Sockets Layer virtual private network) is a form of VPN that can be used with a standard ...

Which VPN authentication protocol uses SSL?

These are :

  • Internet Protocol Security (IPSec)
  • Layer 2 Tunneling Protocol (L2TP)
  • Point to Pint Tunneling Protocol (PPTP)
  • SSTP (Secure Socket Tunneling Protocol)
  • Internet Key Exchange version 2 (IKEv2)
  • Secure Socces Layer (SSL) and Transport Layer Security (TLS)
  • OpenVPN
  • Secure Shell (SSH)
  • MPLS VPN
  • Hybrid VPN

How to configure the SSL VPN service?

Configure SSL VPN web portal (optional):

  • Go to VPN > SSL-VPN Portals to create a tunnel mode only portal my-split-tunnel-portal.
  • Enable Split Tunneling.
  • Select Routing Address to define the destination network that will be routed through the tunnel. Leave undefined to use the destination in the respective firewall policies.

Does IPSec VPN require a license?

VPN both SSL and IPSEC do not require any additional license. In general, all features I can think of that do not require constant updating by fortinet are included without the need for active support our service licenses. No you do not need any license for SSLVPN or IPSEC VPN. FortiSandbox is now marking www.google.com as to be blocked.

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What is more secure IPsec or SSL VPN?

When it comes to corporate VPNs that provide access to a company network rather than the internet, the general consensus is that IPSec is preferable for site-to-site VPNs, and SSL is better for remote access.

What are some differences when using SSL as compared to IPsec for remote access tunnel encryption?

The main difference between IPsec and SSL VPNs is the endpoints for each protocol. While an IPsec VPN allows users to connect remotely to an entire network and all its applications, SSL VPNs give users remote tunneling access to a specific system or application on the network.

Does remote access VPN use IPsec?

While Remote access VPN supports SSL and IPsec technology.

Is SSL used for remote access?

The SSL remote access feature in Astaro Security Gateway provides security by a double authentication using X. 509 certifi- cates and username/password. Astaro's SSL VPN feature reuses the TCP port 443 to establish an encrypted tunnel to your company, allowing you to access internal resources.

What are the primary advantage of SSL over IPsec?

The key difference is that, as a higher layer protocol, TLS used in SSL VPN can easily go through NAT, whereas IPsec VPN requires NAT traversal techniques, and they aren't always working on all networks.

What is the difference between site to site VPN and SSL VPN?

Site to Site VPN connects geographical dispersed LANs over the internet infrastructure, whereas IPSec VPN and SSL VPN connect client devices to a LAN over the internet infrastructure.

Is Cisco Anyconnect SSL or IPsec?

Anyconnect is the replacement for the old Cisco VPN client and supports SSL and IKEv2 IPsec. When it comes to SSL, the ASA offers two SSL VPN modes: Clientless WebVPN.

Which is better IPsec or OpenVPN?

IPSec is generally regarded as faster than OpenVPN. The main reason for this is actually a pro for OpenVPN in another area, and that is how it is implemented. IPSec is implemented in the IP stack of the kernel, whereas OpenVPN is implemented in the userspace.

Can IPsec be hacked?

Hackers Could Decrypt IPsec Information Ordinarily, IPsec ensures cryptographically secured communications when people use insecure and publicly accessible portals, such as when browsing the internet.

What is SSL VPN remote access?

A secure sockets layer VPN (SSL VPN) enables individual users to access an organization's network, client-server applications, and internal network utilities and directories without the need for specialized software.

What is remote SSL VPN?

An SSL VPN generally provides two things: secure remote access via a web portal, and network-level access via an SSL-secured tunnel between the client and the corporate network. The primary benefit of an SSL VPN is data security and privacy.

Do I need SSL certificate for VPN?

Unless your users are accessing your applications using a strong 2048-bit encryption SSL certificate, your company's information could be available to hackers all over the Web. Ensure that your internal servers, Intranets, and Virtual Private Networks (VPN) are secured.

What are three differences between SSL and IPsec VPN?

SSL operates between the OSI model's Transport and Application layers. IPSec is complex to configure. SSL is simple to configure. IPSec is used to secure Virtual Private Networks (VPN).

When selecting a VPN should you choose Ike IPsec or SSL TLS for optimal security Why?

In its recommendations on nomadic work practices published in October 2018, the ANSSI advocates “using the IPsec protocol rather than TLS to implement a VPN tunnel between access devices and a VPN termination device”. The reasons it puts forward are as follows: IPsec has a smaller attack surface*.

Is VPN better than SSL?

If it would be easy for attackers to lure folks to them as a MITM, SSL is probably better since it authenticates each server to the client. A typical VPN, once set up, doesn't help the user avoid an attacker who has gotten into other hosts on the VPN.

What is the type of VPN encryption that establishes a secure and encrypted link between two sites without encrypting the headers of the data packets?

A VPN is unable to hide a system's location. What is the type of VPN encryption that establishes a secure and encrypted link between two sites without encrypting the headers of the data packets? A site-to-site VPN is commonly used to connect geographically-separated operations of a company.

What is SSL VPN?

SSL VPN. The new hotness in terms of VPN is secure socket layer (SSL). You can use an SSL VPN to securely connect via a remote access tunnel, a layer 7 connection to a specific application. SSL is typically much more versatile than IPsec, but with that versatility comes additional risk.

How many phases does IPsec VPN go through?

Every IPsec VPN connection goes through two phases. During phase one of the connection, the VPN peer devices negotiate how the are going to encrypt and pass traffic. If you must use the Internet Key Exchange (IKEv1) protocol here, there are a couple of important things to remember.

What are the two major protocols that are used in VPN?

In today’s world there are two heavyweights in the realm of maximum security, support and functionality: IPsec and SSL.

How has VPN revolutionized the world?

The VPN has revolutionized the way we work. For over 20 years it’s allowed everyone from executives on down a company’s organizational chart to work anywhere, from home to the airport to the resort. (The debate of work/life balance versus always available connectivity will not be solved by me and not here.) This ability to connect almost anywhere in the world has not only revolutionized how we work, but it has saved many on-call engineers late-night trips to the datacenter.

Can an attacker crack a pre-shared key?

This presents a huge security risk that can allow an attacker to crack the pre-shared key. Here’s a really good write up of that information.

Can you use Active Directory for VPN?

Most environments will leverage Active Directory as the authentication source for the VPN using either RADIUS or LDAP. Both protocol options are relatively easy to set up and it’s easy to forget to use the secure options for both. Once connected, a VPN client has access to the business network.

What is IPsec used for?

More specifically, IPsec is a group of protocols that are used together to set up secure connections between devices at layer 3 of the OSI model (the network layer ). IPsec accomplishes this by scrambling all messages so that only authorized parties can understand them — a process known as encryption. IPsec is often used to set up virtual private ...

Where does IPsec work?

The IPsec protocol suite operates at the network layer of the OSI model. It runs directly on top of IP (the Internet Protocol), which is responsible for routing data packets.

What is Cloudflare's alternative to VPNs for access control?

Cloudflare Access enables organizations to control and secure access to internal applications without a VPN. Cloudflare Access puts applications behind Cloudflare's global network, helping both on-premise and cloud applications remain secure.

What is SSL/TLS?

Secure Sockets Layer (SSL) is a protocol for encrypting HTTP traffic, such as connections between user devices and web servers. Websites that use SSL encryption have https:// in their URLs instead of http://. SSL was replaced several years ago by Transport Layer Security (TLS), but the term "SSL" is still in common use for referring to the protocol.

Why do organizations use VPNs?

VPNs are commonly used for access control, because no one outside the VPN can see data within the VPN. Many large organizations need to set up different levels of access control — for instance, so that individual contributors do not have the same levels of access as executives.

Why do people use VPN?

VPNs are often used to allow remote employees to securely access corporate data. Meanwhile, individual users may choose to use VPNs in order to protect their privacy.

Is SSL still used?

SSL was replaced several years ago by Transport Layer Security (TLS), but the term "SSL" is still in common use for referring to the protocol. In addition to encrypting client-server communications in web browsing, SSL can also be used in VPNs.

Why is SSL better than IPsec?

SSL gives users more specific access than IPsec. Rather than becoming a full member of the network, remote team members are granted access to particular applications. This makes it simple to provide different levels of access to different users. Security is maintained by restricting access to only what’s needed.

How secure is VPN?

VPN access is protected by a password. It’s essential for users to select strong passwords with combinations of letters and numbers, upper- and lowercase, special characters, and no dictionary words. The most locked-down systems won’t let users choose a weak password. Two-factor authentication (2FA) makes VPNs even more secure. This method requires a one-time code—sent via text message or generated by a mobile app—in addition to the password to log in. Even if a hacker discovers the password, he or she won’t be able to access the VPN without the second code.

Why do VPNs use encryption?

Security is a key factor to consider when implementing remote access. The more outside connections there are to a network, the more opportunities arise for nefarious parties to intercept data being transmitted. That’s why IPsec protocols use encryption. IPsec encryption works by scrambling data in transit so it cannot be deciphered if intercepted. Data can only be read if the user has the correct key to mathematically unscramble it. VPNs also mask a user’s Internet Protocol (IP) address for further security. The VPN assigns a new IP address, hiding the user’s original address and making it harder for an internet service provider to track them.

What is SSL tunnel mode?

This mode can only be used for web-based programs. It’s ideal for email, chat, file sharing, and other browser-based applications. In tunnel mode, by contrast, users can access any applications on the network , ...

How does IPsec work?

IPsec encryption works by scrambling data in transit so it cannot be deciphered if intercepted. Data can only be read if the user has the correct key to mathematically unscramble it. VPNs also mask a user’s Internet Protocol (IP) address for further security.

What is IPsec in a network?

The purpose of IPsec is to give the remote computer direct access to the central network, making it a full member. Remote users have access to any file storage locations, programs, printers, and backups, exactly as if they were in the office. IPsec is therefore a robust system that gives users whatever resources they need, wherever they are located.

When did SSL replace TLS?

The SSL protocol was replaced by a successor technology, Transport Layer Security (TLS), in 2015, but the terms are interchangeable in common parlance and “SSL” is still widely used. SSL VPNs are implemented through the remote user’s web browser and do not require the installation of special software.

What is the difference between SSL and IPsec?

Basically, IPsec doesn’t use TLS for encryption. Another difference between SSL vs IPsec is that the latter does not specify encryption of connections by default, while the former defaults to traffic encryption.

Why use SSL VPN?

One of the benefits of using a VPN with SSL is data privacy and security. Since an SSL VPN uses standard technologies and web browsers, it offers users more secure access to enterprise applications remotely. VPN Unlimited uses SSL/TLS in the KeepSolid Wise that allows users to establish VPN connections even in networks that band VPNs.

What is IPsec used for?

It is a standard suite of protocols used by IETF (Internet Engineering Task Force). It is used to create a tunnel between two communication points. IPsec takes part in web packet encryption, decryption, and authentication, protecting communications by applying cryptographic security services.

What is SSL tunneling?

Tunneling via SSL uses a client to connect to a backend server.

Is SSL better than IPSEC?

Some experts consider SSL to be better for remote access and IPSec to be preferable for site-to-site VPNs. However, corporate VPNs, such as VPN Unlimited for Teams, have to provide access to a company network as well as secure the connection to the internet. To this end, VPN Unlimited uses both SSL/TSL (in KeepSolid Wise to bypass VPN blocking) and IPsec (as part of the IKEv2 protocol). So just use the one that suits your needs at any given moment.

Can you use VPN for remote work?

Still, remote work has certain requirements to be effective. For one, it implies employees accessing their company’s network wherever they work from. To this end, many organizations and individuals use VPNs (Virtual Private Networks) like VPN Unlimited. How do VPNs do it? Using technologies, such as SSL and IPsec. Wait, what was that we just said? Yeah, these can be somewhat puzzling. Take a look at our SSL vs IPsec comparison and figure it out!

Is VPN Unlimited part of MonoDefense?

Note: VPN Unlimited is also available as a part of the MonoDefense® security bundle.

What is the difference between SSL and IPsec VPN?

The main difference between IPsec and SSL VPNs is the endpoints for each protocol. While an IPsec VPN allows users to connect remotely to an entire network and all its applications, SSL VPNs give users remote tunneling access to a specific system ...

What is SSL VPN?

SSL VPN. An SSL VPN (secure sockets layer) runs over the Internet like an IPsec VPN. However, it is usually running through the web browser (among other application layer protocols) instead of having to install an actual application on the client computer. This makes it much easier to manage.

Why is SSL VPN so popular?

SSL VPNs are becoming more and more popular because entire networks are moving to the cloud where the servers are virtually simulated in software instead of being a dedicated piece of hardware that sits in a specific location. In cloud networks, all the software is web-enabled, so the SSL VPN works just as the IPsec VPN does for physical networks.

What is VPN for?

VPNs (Virtual Private Networks) have been used for years for remote access to a network for users to their corporate or education networks. The end goal of a VPN is to provide remote users access to network resources. There are two main types of VPN software in existence today, IPsec and SSL. IPsec has been around for a long time, but SSL VPNs are gaining popularity thanks to software platforms shifting to the cloud as well as the popularity of web-based applications. Let’s take a more in-depth look at both types.

Why is VPN software so hard to manage?

VPN client software can be hard to manage because they need to be kept up to date and running on the appropriate version that the VPN appliance requires. IT staff is usually tasked with installing and maintaining the software, so some measure of control must be exerted over the software installed on the users’ machines.

Why is IPsec used?

it uses encryption algorithms and in some cases two-factor authentication (2FA) to provide maximum security.

What is the benefit of VPN?

The main benefit of an IPsec VPN is that you can access almost anything on the network that you could if you were locally connected such as servers, printers, and attached storage. IPSec operates at the Network Layer of the OSI model, meaning users have full access to their corporate network regardless of application. A good VPN setup should provide remote users with the opportunity to achieve the same level of productivity as if they are sitting at their desks connected to the LAN.

Authentication and access control

Accepted security best practice is to only allow access that is expressly permitted, denying everything else. This encompasses both authentication, making sure the entity communicating -- be it person, application or device -- is what it claims to be, and access control, mapping an identity to allowable actions and enforcing those limitations.

Defense against attacks

Both SSL/TLS and IPsec support block encryption algorithms, such as Triple DES, which are commonly used in VPNs. SSL/TLS VPNs also support stream encryption algorithms that are often used for web browsing. Given comparable key lengths, block encryption is less vulnerable to traffic analysis than stream encryption.

Client security

Your VPN -- IPsec or SSL/TLS -- is only as secure as the laptops, PCs or mobile devices connected to it. Without precautions, any client device can be used to attack your network.

Client vs. clientless

The primary allure of SSL/TLS VPNs is their use of standard browsers as clients for access to secure systems rather than having to install client software, but there are a number of factors to consider.

Integrating VPN gateways

Server-side issues tend to get lost amid the buzz about clientless savings, but understanding what's involved is essential in VPN product selection, secure system design and cost-effective deployment.

The test of time

Will it always be SSL/TLS VPN vs. IPsec VPN? It's quite likely that IPsec will remain attractive for groups needing the highest degree of security, requiring broader access to IT systems or to rich sets of legacy applications, and, of course, for site-to-site connectivity -- now often under the control of an software-defined WAN rather than a VPN.

Is VPN good for remote access?

An SSL (Secure Sockets Layer) VPN should solve those problems while still providing robust and secure remote access. However, an SSL setup comes with its own difficulties, such as problems with browser support, required increased privileges on the client computer for anything other than pure HTTP applications and the inherent security problem of cached data on the browser. For more information, see " ABCs of Remote Access ".

Is IPsec a VPN?

IPsec is a Layer 3 VPN: For both network-to-network and remote-access deployments, an encrypted Layer 3 tunnel is established between the peers. An SSL VPN, in contrast, is typically a remote-access technology that provides Layer 6 encryption services for Layer 7 applications and, through local redirection on the client, tunnels other TCP protocols. From a purely technical standpoint, you may be able to run both IPsec and SSL VPNs simultaneously, unless both the IPsec and SSL VPN products use installed client software on the user's computer. In that case, you may have stack conflicts.

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Osi Model Layer

Implementation

  • IPsec VPNs typically require installing VPN software on the computers of all users who will use the VPN. Users must log into and run this software in order to connect to the network and access their applications and data. In contrast, all web browsers already support SSL (whereas most devices are not automatically configured to support IPsec VPNs)....
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Access Control

  • Access controlis a security term for policies that restrict user access to information, tools, and software. Properly implemented access control ensures that only the right people can access sensitive internal data and the software applications for viewing and editing that data. VPNs are commonly used for access control, because no one outside the VPN can see data within the VP…
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On-Premise vs. Cloud Applications

  • Traditional on-premise applications run in an organization's internal infrastructure, such as an on-site data center. IPsec VPNs typically work best with these applications, as users access them via internal networks instead of over the public Internet, and IPsec functions at the network layer. Cloud-based applications, also called SaaS (Software-as-a-Service) applications, are accessed o…
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