Remote-access Guide

configure cisco asa 5505 remote access vpn

by Ludie Gerlach Sr. Published 2 years ago Updated 1 year ago
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Using the Cisco ASA 5505 as a VPN server with the Cisco VPN Client software

  • Click the “Wizards” drop down, select “VPN Wizard.”
  • Select “Remote Access,” click Next.
  • Select “Cisco VPN Client,” click Next
  • Select “Pre-shared key,” then fill in what I’m going to call your “VPN Connection Password.” This will be saved in the client and should be as long and secure as ...
  • Tunnel Group Name: Enter what I’m going to call your “VPN Connection Username,” and Click Next.
  • Select “Authenticate using the local user database,” click Next.
  • Create a username and password for each VPN user, click Next.
  • Click “New…” to create a new VPN IP pool. You can do whatever you want here, but here is my suggestion: Name: VPNUsers Starting IP Address: 192.168.15.194 Ending IP Address: ...
  • Click Next.
  • Fill in DNS and WINS for your outside network and Click Next.
  • IKE Policy defaults are fine, click Next.
  • IPSec defaults are fine, click Next.
  • Leave NAT Settings blank, but check “Enable Split tunneling” at the bottom and click Next.
  • Click Finish.

To configure the ASA5505, first log into it using the Cisco ASDM. Click the “Wizards” drop down, select “VPN Wizard.”
...
Using the Cisco ASA 5505 as a VPN server with the Cisco VPN Client software
  1. Name: VPNUsers.
  2. Starting IP Address: 192.168. 15.194.
  3. Ending IP Address: 192.168. 15.220.
  4. Subnet Mask: 255.255. ...
  5. Click “OK.”
Jul 23, 2010

How does the ASA assign IP addresses to remote users?

The ASA will assign IP addresses to all remote users that connect with the anyconnect VPN client. We’ll configure a pool with IP addresses for this: Remote users will get an IP address from the pool above, we’ll use IP address range 192.168.10.100 – 200.

How to use AnyConnect VPN with Asa?

The remote user will open a web browser, enters the IP address of the ASA and then it will automatically download the anyconnect VPN client and establishes the connection. Here’s the topology that we will use:

Why Cisco ASA 5505 is used as border firewall?

A very popular scenario for small networks is to have a Cisco ASA 5505 as border firewall connecting the LAN to the Internet. Administrators in such networks are usually encountered with requests from their users that are not very security conscious.

How to use clientless WebVPN with Asa?

The clientless WebVPN method does not require a VPN client to be installed on the user’s computer. You just open your web browser, enter the IP address of the ASA and you will get access through a web portal. You only have limited access to a number of applications, for example: There is no full network access when you use clientless WebVPN.

What is Cisco ASA 5505?

Does Easy VPN use UDP?

Can Cisco ASA 5505 be used as a VPN?

Can Cisco devices be used for authentication?

See 1 more

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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 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...

What is remote access VPN Cisco?

Remote access VPNs allow users to connect to a central site through a secure connection over a TCP/IP network such as the Internet. Remote access VPNs for IPsec IKEv2. 8.4(1) Added IPsec IKEv2 support for the AnyConnect Secure Mobility Client.

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.

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.

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 IPSec on ASA firewall?

To configure the IPSec VPN tunnel on Cisco ASA 55xx:Configure IKE. Establish a policy for the supported ISAKMP encryption, authentication Diffie-Hellman, lifetime, and key parameters. ... Create the Access Control List (ACL) ... Configure IPSec. ... Configure the Port Filter. ... Configure Network Address Translation (NAT)

How do I set up AnyConnect on ASA?

Configure AnyConnect ConnectionsConfigure the ASA to Web-Deploy the Client.Enable Permanent Client Installation.Configure DTLS.Prompt Remote Users.Enable AnyConnect Client Profile Downloads.Enable AnyConnect Client Deferred Upgrade.Enable DSCP Preservation.Enable Additional AnyConnect Client Features.More items...•

Where is Cisco VPN client 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

Is Cisco AnyConnect a VPN?

cisco connect Anyconnect is a secure mobility client solution for secure VPN access for remote works, highly secure access to the enterprise's network from any device from anywhere at any time.

How do I setup a VPN server?

Android:Tap the Settings icon.Tap Network & internet.Tap Advanced.Tap VPN.Tap Add.Enter the information including Name, Type, Server Address, Username, and Password.Tap Save.Again, tap the Settings icon.More items...•

How do I add AnyConnect images to Asa?

You need to upload the anyconnect client to the flash of the ASA. You can use the file management in the top menu of the ASA. Transfer the file from your local disc to the flash. Then select the image in Remote Access VPN - Network Client Access - Anyconnect Client Profile.

How do I enable local LAN access on Cisco VPN?

Right click the Cisco AnyConnect client. Left click on Open AnyConnect. Select Advanced Windows. From the Preferences tab, ensure the Allow local (LAN) access when using VPN (if configured), is check.

Where is Cisco ASDM?

You can download ASDM from cisco.com or from your ASA itself. You can then run it inside a browser or download the ASDM launcher so it runs as its own application on your PC. I highly recommend ASDM launcher as the way to go.

What is the default preconfigured security level for the outside network interface on a Cisco ASA 5505?

Security level 0:Security level 0: This is the lowest security level there is on the ASA and by default it is assigned to the “outside” interface.

Using the Cisco ASA 5505 as a VPN server with the Cisco VPN Client ...

Anthony Curreri November 17, 2010 at 3:02 pm. Peter, I don’t have anything set in the VPN policy section. That sounds fine to me, you just need to make sure that the subnets you use behind the firewall and for the VPN pool are both different from each other, and are also different from the networks that the VPN device and the client are located on.

What is ASA 5505?

A very popular scenario for small networks is to have a Cisco ASA 5505 as border firewall connecting the LAN to the Internet. Administrators in such networks are usually encountered with requests from their users that are not very security conscious.

Can a remote desktop be attacked by a password?

Remote Desktop machines are very prone to attacks, especially brute- force password attacks. In windows, the administrator account does not get locked-out by default. So a brute force administrator password attack on the RDP server from remote attackers can be successful especially if the administrator password is weak.

Is the IP address of an ASA fixed?

Assume that the ASA receives IP address dynamically from the ISP (via DHCP protocol). So the outside IP of the ASA is not fixed.

Can you create 3 DMZ vlans?

However, companies with limited budget might have purchased a Cisco ASA 5505 with basic license which restricts the creation of a DMZ Vlan (although you can create 3 Vlans, the third Vlan can only communicate with one of the other two Vlans but not both).

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, ...

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 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.

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:

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 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.

Does Outlook have full network access?

Microsoft Outlook Web Access. There is no full network access when you use clientless WebVPN. 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. In this lesson we will use clientless WebVPN only for ...

1. Check Cisco firewall ASA version

Make sure you have ASA 8.2.2 and up. You cannot connect your Windows clients if you have ASA 8.2.1 because of the Cisco software bug.

2. Start Cisco firewall IPsec VPN Wizard

Login to your Cisco firewall ASA5500 ASDM and go to Wizard > IPsec VPN Wizard ... and follow up the screens.

3. Add Transform Set

Go to Configuration > Remote Access VPN > Network (Client) Access > Advanced > IPSec > Crypto Maps. Edit the IPSec rules and add "TRANS_ESP_3DES_SHA" and click "Ok" button.

What is Cisco ASA 5505?

The Cisco ASA 5505, operating as an Easy VPN hardware client, supports management access using SSH or HTTPS, with or without a second layer of additional encryption. You can configure the Cisco ASA 5505 to require IPsec encryption within the SSH or HTTPS encryption.

Does Easy VPN use UDP?

By default, the Easy VPN hardware client and server encapsulate IPsec in User Datagram Protocol (UDP) packets. Some environments, such as those with certain firewall rules, or NAT and PAT devices, prohibit UDP. To use standard Encapsulating Security Protocol (ESP, Protocol 50) or Internet Key Exchange (IKE, UDP 500) in such environments, you must configure the client and the server to encapsulate IPsec within TCP packets to enable secure tunneling. If your environment allows UDP, however, configuring IPsec over TCP adds unnecessary overhead.

Can Cisco ASA 5505 be used as a VPN?

When configuring the Cisco ASA 5505 as an Easy VPN hardware client, you can specify a tunnel group or trustpoint configured on the Easy VPN server, depending on the Easy VPN server configuration. See the section that names the option you want to use:

Can Cisco devices be used for authentication?

Devices such as Cisco IP phones, wireless access points, and printers are incapable of performing authentication . Enter the following command in global configuration mode to exempt such devices from authentication, thereby providing network access to them, if individual user authentication is enabled:

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