asa remote access vpn configuration

Eight easy steps to Cisco ASA remote access setup

• Step 1. Configure an Identity Certificate. Here I am creating a general purpose, self-signed, identity certificate named...
• Step 2. Upload the SSL VPN Client Image to the ASA. You can obtain the client image at Cisco.com. As you choose which...
• Step 3. Enable AnyConnect VPN Access.
• Step 4. Create a Group Policy. Group Po...

Full Answer

How to connect to Cisco ASA?

To power on the Cisco ASA 5505, perform the following steps:

1. Connect the power supply with the power cable.
2. Connect the small, rectangular connector of the power supply cable to the power connector on the rear.
3. Connect the AC power connector of the power supply input cable to an electrical outlet. ...
4. Check the power LED; if it is solid green, then the device is powered on.

How to setup a remote access VPN?

• Create a virtual network gateway (if one does not exist).
• Configure point-to-site VPN on the gateway (see Scenario 1 ).
• Configure a site-to-site tunnel on the Azure virtual network gateway with BGP enabled.
• Configure the on-premises device to connect to Azure virtual network gateway.

More items...

Can the Cisco ASA be used as a router?

The ASA is NOT a router, though and while you can do things on the ASA that can make it act something like a router it is important to understand the differences between true routing and what the ASA actually does.

How to check VPN tunnel status Cisco ASA?

• show vpn-sessiondb l2l
• show vpn-sessiondb ra-ikev1-ipsec
• show vpn-sessiondb summary
• show vpn-sessiondb license-summary
• and try other forms of the connection with "show vpn-sessiondb ?"

How do I set up VPN server for remote access?

Configure Remote Access as a VPN ServerOn the VPN server, in Server Manager, select the Notifications flag.In the Tasks menu, select Open the Getting Started Wizard. ... Select Deploy VPN only. ... Right-click the VPN server, then select Configure and Enable Routing and Remote Access.More items...•

What VPN types are supported by ASA?

For VPN Services, the ASA 5500 Series provides a complete remote-access VPN solution that supports numerous connectivity options, including Cisco VPN Client for IP Security (IPSec), Cisco Clientless SSL VPN, network-aware site-to-site VPN connectivity, and Cisco AnyConnect VPN client.

How does remote access VPN Work?

A remote access VPN works by creating a virtual tunnel between an employee's device and the company's network. This tunnel goes through the public internet but the data sent back and forth through it is protected by encryption and security protocols to help keep it private and secure.

How do I configure AnyConnect?

5 Steps to Configure Cisco AnyConnect VPNConfigure AAA authentication. The first thing to configure is AAA authentication. ... Define VPN protocols. When users connect their VPN, they'll need an IP address for the VPN session. ... Configure tunnel groups. ... Set group policies. ... Apply the configuration. ... Authenticating logic flow.

What are the four types of VPN?

Virtual Private Network (VPN) services fall into four main types: personal VPNs, remote access VPNs, mobile VPNs, and site-to-site VPNs....How Personal VPNs WorkInstall software from your VPN service provider onto your device. ... Connect to a server in your VPN provider's network.More items...•

What are the two types of VPN connections?

Types of VPNsSite-to-Site VPN: A site-to-site VPN is designed to securely connect two geographically-distributed sites. ... Remote Access VPN: A remote access VPN is designed to link remote users securely to a corporate network.More items...

What is the difference between VPN and remote access?

A VPN is a smaller private network that runs on top of a larger public network, while Remote Desktop is a type of software that allows users to remotely control a computer. 2. Remote Desktop allows access and control to a specific computer, while VPN only allows access to shared network resources.

What is the difference between remote access VPN and site to site VPN?

A remote access VPN connects remote users from any location to a corporate network. A site-to-site VPN, meanwhile, connects individual networks to each other.

Which VPN is best for remote access?

Perimeter 81 – Best all-round business VPN. Jul 2022. ... GoodAccess – Security Strategy Options. Apps Available: ... ExpressVPN – Lightning Fast VPN. ... Windscribe – VPN with Enterprise-Friendly Features. ... VyprVPN – Secure VPN with Business Packages. ... NordVPN – Security-first VPN. ... Surfshark – VPN with Unlimited User Connections.

Where is the Cisco AnyConnect Configuration file?

Resolution:Operating SystemLocationWindows 8%ProgramData%\Cisco\Cisco AnyConnect Secure Mobility Client\ProfileWindows 10%ProgramData%\Cisco\Cisco AnyConnect Secure Mobility Client\ProfileMac OS X/opt/cisco/anyconnect/profileLinux/opt/cisco/anyconnect/profile3 more rows•Apr 27, 2022

How do I add VPN details to Cisco AnyConnect?

InstallUninstall any previous versions of Cisco AnyConnect.Install Cisco AnyConnect app from the Apple App Store or Google Play Store.Open the Cisco AnyConnect app.Select Add VPN Connection.Enter a Description, for example, CMU VPN and the Server Address vpn.cmu.edu.If prompted, allow the changes.Click Save.

Is Cisco AnyConnect IPsec or SSL?

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.

What is an ASA VPN?

This allows remote users to connect to the ASA and access the remote network through an IPsec encrypted tunnel. The remote user requires the Cisco VPN client software on his/her computer, once the connection is established the user will receive a private IP address from the ASA and has access to the network.

Is Cisco AnyConnect VPN free?

Cisco AnyConnect is a free, easy to use, and worthwhile VPN client for Microsoft Windows computers. It's secure and doesn't require a lot of maintenance.

What is the latest ASA version?

Last supported software releases on ASA hardwareModelASAFTDASA 55059.2N/AASA 5506-X9.166.2.3ASA 5508-X9.167.0ASA 5512-X9.9.26.2.36 more rows•Apr 9, 2021

What version of Cisco AnyConnect is compatible with Windows 10?

The minimum supported version is Windows 10 RS4 (1803).

How many interfaces does an ASA have?

The ASA has two interfaces: inside and outside. Imagine the outside interface is connected to the Internet where a remote user wants to connect to the ASA. On the inside we find R1, I will only use this router so the remote user has something to connect to on the inside network. Let’s look at the configuration!

What is VPN_POLICY?

The group policy is called VPN_POLICY and it’s an internal group policy which means it is created locally on the ASA. You can also specify an external group policy on a RADIUS server. I added some attributes, for example a DNS server and an idle timeout (15 minutes). Split tunneling is optional but I added it to show you how to use it, it refers to the access-list we created earlier.

Does Cisco VPN require ASA?

The remote user requires the Cisco VP N client software on his/her computer, once the connection is established the user will receive a private IP address from the ASA and has access to the network .

Can remote VPN users access certain networks?

If you want to configure an access-list so the remote VPN users can only reach certain networks , IP addresses or ports then you can apply this under the group policy.

Can you use VPN on remote network?

If you don’t want this then you can enable split tunneling. With split tunneling enabled, we will use the VPN only for access to the remote network. Here’s how to enable it:

How many interfaces does an ASA have?

An ASA has at least two interfaces, referred to here as outside and inside. Typically, the outside interface is connected to the public Internet, while the inside interface is connected to a private network and is protected from public access.

Which crypto protocol allows the IPsec client and the ASA to establish a shared secret key?

Specify the Diffie-Hellman group for the IKE policy—the crypto protocol that allows the IPsec client and the ASA to establish a shared secret key.

What is the default LAN to LAN tunnel group?

There are two default tunnel groups in the ASA system: DefaultRAGroup, which is the default remote-access tunnel group, and DefaultL2Lgroup, which is the default LAN-to-LAN tunnel group. You can change these groups, but do not delete them. The ASA uses these groups to configure default tunnel parameters for remote access and LAN-to-LAN tunnel groups when there is no specific tunnel group identified during tunnel negotiation.

What files can Cisco AnyConnect have?

Virtual File System creation for each context can have Cisco Anyconnect files like Image and profile.

What happens if a Cisco VPN client has a different preshared key size?

If a Cisco VPN Client with a different preshared key size tries to connect, the client logs an error message indicating it failed to authenticate the peer.

What is the first phase of ISAKMP?

Phase 1 creates the first tunnel to protect later ISAKMP negotiation messages. Phase 2 creates the tunnel that protects data travelling across the secure connection.

Do you need a mask for a VPN?

The address mask is optional. However, You must supply the mask value when the IP addresses assigned to VPN clients belong to a non-standard network and the data could be routed incorrectly if you use the default mask. A typical example is when the IP local pool contains 10.10.10.0/255.255.255.0 addresses, since this is a Class A network by default. This could cause routing issues when the VPN client needs to access different subnets within the 10 network over different interfaces.

What is AnyConnect VPN?

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. AnyConnect VPN. The clientless WebVPN method does not require a VPN client to be installed on the user’s computer. You just open your web browser, ...

When remote users connect to our WebVPN, do they have to use HTTPS?

The following option is not required but useful, whenever someone accesses the ASA through HTTP then they will be redirected to HTTPS:

What happens when a VPN user terminates a session?

Normally when the remote VPN user terminates the session, the anyconnect installer will be uninstalled. The anyconnect keep-installer installed command leaves it installed on the user’s computer.

What happens when you have an inbound access list?

When you have an inbound access-list on the outside interface then all your decrypted traffic from the SSL WebVPN has to match the inbound access-list. You can either create some permit statements for the decrypted traffic or you can just tell the ASA to let this traffic bypass the access-list:

Why does my client tries to download AnyConnect?

The client tries to download the Anyconnect automatically, this is because of the anyconnect ask none default anyconnect command that we used. Since we are using a self-signed certificate you will get the following error message:

What is the IP address of AnyConnect?

You can see that we received IP address 192.168.10.100 (the first IP address from the VPN pool). Anyconnect creates an additional interface, just like the legacy Cisco VPN client does.

What is an ayconnECT_policy?

The group policy is called “ANYCONNECT_POLICY” and it’s an internal group policy which means that we configure it locally on the ASA. An external group policy could be on a RADIUS server.

Why is it necessary to replace an ASA?

If the existing ASA does not have sufficient performance or processing capacity due to an increase in throughput or the number of simultaneous connections even if it is optimized, it will be necessary to replace it with a higher-level device or add an ASA. The following is an example of how to respond by changing the configuration.

What type of network adapter is used for ASAv?

If ASAv is deployed on VMware environment, good performance can be expected when network adapter type is VMXNET3 or IXGBE-VF. You can check the network adapter you are using by editing the virtual machine settings. In the case of the following example, you can see that you are using VMXNET3.

Why is VPN throughput limited?

VPN throughput is the sum of transmission (tx) and reception (Rx).

Why isn't my VPN working?

The reason why VPN performance does not appear is that the maximum speed and quality of the devices and lines on the communication path between the AnyConect terminal and the ASA termination device are bottlenecks. For example, even if you use an ASA with a VPN processing performance of 1 Gbps, if the maximum speed of the communication path line is about 500 Mbps, the ASA can also process only up to about 500 Mbps. In addition, delays and drops due to processing congestion on lines and routing devices can also cause packet retransmissions and communication failures, which can also cause major performance degradation.

Why is it important to check the number of VPN sessions?

There are several reasons why it is important to check the number of VPN sessions and maintain an appropriate number of sessions, but most importantly, as the number of VPN sessions increases, VPN throughput is shared among connected users. The available throughput per user is reduced. It is desirable to be able to provide business-free throughput, but if VPN access is concentrated and the number of users increases, the available throughput per user will decrease accordingly. However, it is usually necessary to provide each connected user with the minimum required throughput for performing business, even under the condition that access is extremely concentrated, even if there is delay or stress.

What is ASAv in ESXi?

ASAv is a virtual appliance and can be installed and used on a virtual infrastructure such as ESXi, KVM, AWS, and Hyper-v. Below are some best practices and verification examples for ASAv performance optimization.

How does CPU affect VPN?

The CPU usage rate increases as the number of encryption and decryption processes increases, so when the VPN throughput is close to the limit, you can almost always see a high CPU usage rate. Even if the same VPN throughput is generated, the CPU usage rate will be affected by various factors such as the products and functions used, the setting amount, the number of simultaneous connections, the traffic pattern, the usage version, and the environment.

How to test AAA server?

You can use the test command on the command line in order to test your AAA setup. A test request is sent to the AAA server, and the result appears on the command line.

What command to use to verify DN string?

If unsure of the current DN string to use, you can issue the dsquery command on a Windows Active Driectory server from a command prompt in order to verify the appropriate DN String of a user object.

What is LDAP 255?

The debug ldap 255 command can help to troubleshoot authentication problems in this scenario. This command enables LDAP debugging and allows you to watch the process that the ASA uses to connect to the LDAP server.