Remote-access Guide

cisco asa vpn configuration example remote access

by Katelyn Runte Published 2 years ago Updated 2 years ago
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Configure the Admin Portal to integrate with Cisco ASA VPN via RADIUS. To configure the Admin Portal.... For example, users coming in via a RADIUS client not specified will be authenticated using the authentication profile selected here.... Go to Configuration > Remote Access VPN > AAA/Local Users > AAA Server Group, then click Add.

Full Answer

How to setup a remote access VPN?

Use a VPN Router with the built-in VPN server capability

  • Launch a browser window from your PC connected to the routers’ network
  • Enter the router IP address in the search to login into your router
  • Enter the username and password of your router and login into it.
  • Go to the Settings page and select VPN Service or setup page.
  • Enable the VPN service by selecting the checkbox and apply

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 connect Cisco ASA on PC?

  • Connect the network cable from the modem to port 0 (default outside port) on the ASA.
  • Connect your computer to one of the other ports on the ASA, which should be on the inside network by default.
  • Open a browser on your computer and go to 192.168.
  • Click Run ASDM.
  • Log in.

How to setup a Cisco VPN?

How To Setup Vpn Cisco Rv340? February 18, 2022 by Cathie. Select Settings, VPN, and then add a VPN connection. Enter the public WAN IP address provided by your ISP, select a VPN type as PPTP, and enter the user name and password in the section below. The newly created PPTP VPN network adapter must now be connected.

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How do I access my Cisco ASA remotely?

There are eight basic steps in setting up remote access for users with the Cisco ASA.Configure an Identity Certificate.Upload the SSL VPN Client Image to the ASA.Enable AnyConnect VPN Access.Create a Group Policy.Configure Access List Bypass.Create a Connection Profile and Tunnel Group.Configure NAT Exemption.More items...•

How does Cisco remote access VPN Work?

Remote and mobile users use the Cisco AnyConnect Secure VPN client to establish VPN sessions with the adaptive security appliance. The adaptive security appliance sends web traffic to the Web Security appliance along with information identifying the user by IP address and user name.

Is Cisco AnyConnect a remote access VPN?

Anyconnect VPN offers full network access. The remote user will use the anyconnect client to connect to the ASA and will receive an IP address from a VPN pool, allowing full access to the network. Above we have the ASA firewall with two security zones: inside and outside.

How configure AnyConnect Cisco ASA?

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 is WebVPN on ASA?

WebVPN (or often called SSL VPN) (or sometimes called clientless VPN) is used when someone needs to access a web based application that is on the private network. A web browser is used for all the encryption and authentication.

What type of VPN is AnyConnect?

Cisco AnyConnect VPNs utilize TLS to authenticate and configure routing, then DTLS to efficiently encrypt and transport the tunneled VPN traffic, and can fall back to TLS-based transport where firewalls block UDP-based traffic.

How do I connect to Cisco AnyConnect VPN?

ConnectOpen the Cisco AnyConnect app.Select the connection you added, then turn on or enable the VPN.Select a Group drop-down and choose the VPN option that best suits your needs.Enter your Andrew userID and password.Authenticate with 2fa (DUO).Tap Connect.

Does Cisco AnyConnect work anywhere?

Cisco AnyConnect Secure Mobility Client empowers employees to work from anywhere on company laptops or personal mobile devices. It also provides the visibility and control security teams need to identify who and which devices are accessing their infrastructure.

What is Cisco AnyConnect user interface?

The Cisco AnyConnect VPN Client is a cybersecurity application designed to provide the user with anonymity while surfing the Internet. Vpnui.exe runs the user interface for the Cisco AnyConnect VPN Client. Removing this process may disable AnyConnect VPN from functioning.

How do I configure AnyConnect on ASA 5505?

Quick guide: AnyConnect Client VPN on Cisco ASA 5505Click on Configuration at the top and then select Remote Access VPN.Click on Certificate Management and then click on Identity Certificates.Click Add and then Add a new identity certificate.Click New and enter a name for your new key pair (ex: VPN)More items...•

How do I enable VPN on ASA?

Set up VPN on a Cisco ASA deviceOpen ASDM.Go to Wizards VPN Wizards. IPsec (IKEv1) Remote Access VPN Wizard.Bypass the interface access lists: ... Click Next.Choose Microsoft Windows client using L2TP over IPsec and check the box for MS-CHAP-V2.Click Next.Authenticate the machine: ... Click Next.More items...

Does Cisco AnyConnect route all traffic?

With AnyConnect, the client passes traffic to all sites specified in the split tunneling policy you configured, and to all sites that fall within the same subnet as the IP address assigned by the ASA. For example, if the IP address assigned by the ASA is 10.1.

How do I use Cisco VPN?

ConnectOpen the Cisco AnyConnect app.Select the connection you added, then turn on or enable the VPN.Select a Group drop-down and choose the VPN option that best suits your needs.Enter your Andrew userID and password.Tap Connect.

Does Cisco AnyConnect work anywhere?

Cisco AnyConnect Secure Mobility Client empowers employees to work from anywhere on company laptops or personal mobile devices. It also provides the visibility and control security teams need to identify who and which devices are accessing their infrastructure.

How does Palo Alto VPN Work?

How Does VPN Work? A VPN creates a private connection, known as a “tunnel,” to the internet. All information travelling from a device connected to a VPN will get encrypted and go through this tunnel. When connected to a VPN, a device will behave as if it's on the same local network as the VPN.

How do I connect to ASU VPN?

Open the “Cisco AnyConnect Secure Mobility Client”. Give the vpn server address as “sslvpn.asu.edu/2fa” and click on connect. 2. Then use your ASURITE User ID and Password, click on OK you will be connected to VPN.

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.

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.

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 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.

Is Mobike available on ASA?

Mobike is available by default on ASAs since version 9.8 (1), meaning Mobike is “always on.” Mobike is enabled for each SA only when the client proposes it and the ASA accepts it. This negotiation occurs as part of the IKE_AUTH exchange.

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.

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.

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 them but 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 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.

Is IPv6 supported for SSL?

Assigning an IPv6 address to the client is supported for the SSL protocol. This feature is not supported for the IKEv2/IPsec protocol.

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.

Is transparent mode supported in firewall?

Supported only in routed firewall mode. Transparent mode is not supported.

Can ASA assign IPv4 and IPv6?

You can configure the ASA to assign an IPv4 address, an IPv6 address, or both an IPv4 and an IPv6 address to an AnyConnect client by creating internal pools of addresses on the ASA or by assigning a dedicated address to a local user on the ASA.

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:

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, ...

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.

Information About Remote Access IPsec VPNs

Remote access VPNs allow users to connect to a central site through a secure connection over a TCP/IP network such as the Internet. The Internet Security Association and Key Management Protocol, also called IKE, is the negotiation protocol that lets the IPsec client on the remote PC and the ASA agree on how to build an IPsec Security Association.

Licensing Requirements for Remote Access IPsec VPNs

The following table shows the licensing requirements for this feature:

Guidelines and Limitations

This section includes the guidelines and limitations for this feature.

Configuring Remote Access IPsec VPNs

This section describes how to configure remote access VPNs and includes the following topics:

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.

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 them but 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 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.

Is transparent mode supported in firewall?

Supported only in routed firewall mode. Transparent mode is not supported.

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.

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