Remote-access Guide

cisco asa remote access vpn dns server

by Emmie Waters Jr. Published 2 years ago Updated 1 year ago
image

In order to configure an internal or external Domain Name System (DNS) server for Cisco VPN Clients on the PIX/ASA, complete these steps:

  1. Access the device using the CLI and go to configuration mode.
  2. Enter the config-group-policy mode for the VPN Client using the group-policy attributes command.
  3. Configure the DNS server using the dns-server command.
  4. Exit out of the configuration.

Full Answer

How to configure Cisco AnyConnect VPN on ASA?

Click Apply. Choose Configuration > Remote Access VPN > Network (Client) Access > Anyconnect Client Software > Add in order to add the Cisco AnyConnect VPN client image from the flash memory of ASA as shown. Configure Group Policy.

Where is the DNS server on my Asa?

Not sure which ASA you have but on ours under Remote access VPN you will see dns in the menu. That is where we have it point to a server This person is a verified professional.

How do I connect to the ASA from another computer?

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.

What are remote access VPNs?

Remote access VPNs address the requirement of the mobile workforce to securely connect to the organization's network. Mobile users are able to set up a secure connection using the Cisco Anyconnect Secure Mobility Client software.

image

Can ASA be DNS server?

As Colin mentioned ASA cannot work as dns server, The ASA is not designed to be a DNS server and that was never its intent.

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...•

Does Cisco AnyConnect use 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 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.

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.

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.

What VPN protocol does Cisco AnyConnect use?

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.

Which method is better for VPN IPsec or SSL based?

IPsec VPNs configure a tunnel between client and server using a piece of software on the client, which may require a relatively lengthy setup process; SSL VPNs that operate through web browsers will usually be capable of setting up connections much faster.

Can AnyConnect use IPsec?

If you want the user to connect using IPSECv2 from the Anyconnect client then it will consume the SSL license and not the IPsec license however if you use IPSECv2 for connections like site to site vpn then it will consume normal IPSec VPN license.

Is AnyConnect a VPN?

Cisco AnyConnect Client helps us to make secure , safe and reliable VPN connection to our organization's private network with multiple security services to safe and protect company's data. It gives freedom to employees to get connected from anywhere anytime, thus making life easier for remote workers.

Where is Cisco VPN profile stored?

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 does Cisco AnyConnect 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.

How do I connect to Cisco ASA?

Complete the below steps.Configure the management interface. conf t. int e 0/2. ip address 192.168.100.2 255.255.255.0. nameif manage. security-level 80. exit. exit.Configure the username and privilege. username Test password Test@Cisco privilege 15.Configure the Cisco ASA to allow http connections.

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...

How do I download AnyConnect from Asa?

Just load a new image to the ASA (under Configuration -> Remote-Access VPN -> Network (Client) Access -> AnyConnect Client Software) and the client will load the new software the next time when the client connects. Of course the client shouldn't have a setting applied to not download new software.

How install AnyConnect Cisco 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...•

What version of ASA is AnyConnect?

The ASA supports the AnyConnect client firewall feature with ASA version 8.3 (1) or later, and ASDM version 6.3 (1) or later. This section describes how to configure the client firewall to allow access to local printers, and how to configure the client profile to use the firewall when the VPN connection fails.

What is DPD in ASA?

Dead Peer Detection (DPD) ensures that the ASA (gateway) or the client can quickly detect a condition where the peer is not responding, and the connection has failed. To enable dead peer detection (DPD) and set the frequency with which either the AnyConnect client or the ASA gateway performs DPD, do the following:

What is ACL AnyConnect_Client_Local_Print?

The ACL AnyConnect_Client_Local_Print is provided with ASDM to make it easy to configure the client firewall. When you choose that ACL for Public Network Rule in the Client Firewall pane of a group policy, that list contains the following ACEs:

Does ASA support LDAP?

The other parameters are valid for AAA servers that support such notification; that is, RADIUS, RADIUS with an NT server, and LDAP servers. The ASA ignores this command if RADIUS or LDAP authentication has not been configured.

Does AnyConnect SSL VPN work with IPsec?

This feature applies to connectivity between the ASA gateway and the AnyConnect SSL VPN Client only. It does not work with IPsec since DPD is based on the standards implementation that does not allow padding, and CLientless SSL VPN is not supported.

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. 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.

Configuration Examples for Remote Access IPsec VPNs

The following example shows how to configure a remote access IPsec/IKEv1 VPN:

Configuration Examples for Standards-Based IPSec IKEv2 Remote Access VPN in Multiple-Context Mode

The following examples show how to configure ASA for Standards-based remote access IPsec/IKEv2 VPN in multi-context mode. The examples provide information for the System Context and User Context configurations respectively.

Configuration Examples for AnyConnect IPSec IKEv2 Remote Access VPN in Multiple-Context Mode

The following examples show how to configure ASA for AnyConnect remote access IPsec/IKEv2 VPN in multi-context mode. The examples provide information for the System Context and User Context configurations respectively.

How to change DNS server IP address in ASDM?

Try this - in ASDM, go to Configuration -> Remote Access VPN -> Network (Client) Access -> Anyconnect Connection Profiles. Click on the one you setup and edit it. You should be able to manually set the DNS server ip addresses within that profile.

Does ASA handle DHCP?

I should also note that the ASA appears to be handling DHCP for anyconnect clients vs letting our internal DHCP server handle them. It assigns them to a different Subnet than our internal LAN,

What is DHCP 3011?

RFC 3011 defines a new DHCP option, the subnet selection option, which allows the DHCP client to specify the subnet on which to allocate an address. This option takes precedence over the method that the DHCP server uses to determine the subnet on which to select an address.

Can DHCP be used with ASA?

In terms of the ASA, these RFCs will allow a user to specify a dhcp-network-scope for DHCP Address Assignment that is not local to the ASA, and the DHCP Server will still be able to reply directly to the interface of the ASA. The diagrams below should help to illustrate the new behavior. This will allow the use non-local scopes without having to create a static route for that scope in their network.

image
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9