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Public proxies are usually used to anonymize web traffic. When Windows is configured to use a public proxy, AnyConnect uses that connection. Public proxy is supported on macOS and Linux for both native and override. Private proxy servers are used on a corporate network to prevent corporate users from accessing certain Web sites based on corporate usage policies, for example, pornography, gambling, or gaming sites.

You configure a group policy to download private proxy settings to the browser after the tunnel is established. The settings return to their original state after the VPN session ends. See Configure a Private Proxy Connection. AnyConnect SBL connections through a proxy server are dependent on the Windows operating system version and system machine configuration or other third-party proxy software capabilities; therefore, refer to system wide proxy settings as provided by Microsoft or whatever third-party proxy application you use.

The VPN Client profile can block or redirect the client system's proxy connection. For Windows and Linux, you can configure, or you can allow the user to configure, the address of a public proxy server. Some versions of the ASA require AnyConnect configuration to support clientless portal access through a proxy server after establishing an AnyConnect session.

AnyConnect uses a proxy auto-configuration PAC file to modify the client-side proxy settings to let this occur. AnyConnect generates this file only if the ASA does not specify private-side proxy settings. OS support of proxy connections varies as shown:. IPv6 proxies are not supported for any type of proxy connection.

Connecting through a proxy is not supported with the Always-On feature enabled. Select default or unselect Allow Local Proxy Connections. Local proxy is disabled by default. Configure the private proxy information in the ASA group policy. In a macOS environment, the proxy information that is pushed down from the ASA upon a VPN connection is not viewed in the browser until you open up a terminal and issue a scutil --proxy.

This prevents the user from establishing a tunnel from outside the corporate network, and prevents AnyConnect from connecting through an undesirable or illegitimate proxy server. In the Proxy Settings drop-down list, choose IgnoreProxy. Ignore Proxy causes the client to ignore all proxy settings.

No action is taken against proxies that are downloaded from the ASA. When exposed, this tab lets the user set proxy information. Hiding this tab prevents the user from intentionally or unintentionally circumventing the tunnel. The tab lockdown is reversed on disconnect, and it is superseded by any administrator-defined policies applied to that tab. The conditions under which this lock down occurs are the following:.

The ASA configuration specifies Connections tab lockdown. The ASA configuration specifies a private-side proxy. A Windows group policy previously locked down the Connections tab overriding the no lockdown ASA group policy setting.

You can configure the ASA to allow or not allow proxy lockdown, in the group policy. To do this using ASDM, follow this procedure:. The Proxy Server Policy pane displays. Click Proxy Lockdown to display more proxy settings. Uncheck Inherit and select Yes to enable proxy lockdown and hide the Internet Explorer Connections tab for the duration of the AnyConnect session or; select No to disable proxy lockdown and expose the Internet Explorer Connections tab for the duration of the AnyConnect session.

Click Apply to save the Group Policy changes. For Windows: Find the proxy settings in the registry under:. If Client Bypass Protocol is enabled for an IP protocol and an address pool is not configured for that protocol in other words, no IP address for that protocol was assigned to client by the ASA , any IP traffic using that protocol will not be sent through the VPN tunnel.

It will be sent outside the tunnel. If Client Bypass Protocol is disabled, and an address pool is not configured for that protocol, the client drops all traffic for that IP protocol once the VPN tunnel is established. Next to Client Bypass Protocol , uncheck Inherit if this is a group policy other than the default group policy. Click Enable to send that IP traffic in the clear. Click Apply. PTR queries matching any of the tunneled networks are allowed through the tunnel.

To configure split DNS for split include tunneling in the group policy, do the following:. If they do, name resolution may not function properly. For example, you can use a ping or web browser to test the split DNS solution. To use the client to check which domains are used for split DNS, follow these steps:. Those extra domains added after establishing the tunnel are the domains used for split DNS. This process assumes that the domains pushed from the ASA do not overlap with the ones already configured on the client host.

The AnyConnect client does not support certificate verification using certificate revocation lists CRL. Many sites position the Certificate Authority they use to validate server certificates inside the corporate network. That means that a client cannot verify CRL when it is trying to connect to a headend, since the CRL is not accessible on the public network. When enabled in the profile editor, AnyConnect retrieves the updated CRL for all certificates in the chain. It then verifies whether the certificate in question is among those revoked certificates which should no longer be trusted; and if found to be a certificate revoked by the Certificate Authority, it does not connect.

Refer to Local Policy Preferences for further information. When a user connects to an ASA that is configured with a server certificate, the checkbox to trust and import that certificate will still display, even if there is a problem with the trust chain Root, Intermediate, etc. If there are any other certificate problems, that checkbox will not display. IPsec and SSL connections perform name verification on server certificates. If a Subject Alternative Name extension is present with relevant attributes, name verification is performed solely against the Subject Alternative Name.

Relevant attributes include DNS Name attributes for all certificates, and additionally include IP address attributes if the connection is being performed to an IP address.

If a Subject Alternative Name extension is not present, or is present but contains no relevant attributes, name verification is performed against any Common Name attributes found in the Subject of the certificate. If a certificate uses a wildcard for the purposes of name verification, the wildcard must be in the first left-most subdomain only, and additionally must be the last right-most character in the subdomain. Any wildcard entry not in compliance is ignored for the purposes of name verification.

In response to the increase of targeted attacks against mobile users on untrusted networks, we have improved the security protections in the client to help prevent serious security breaches. The default client behavior has been changed to provide an extra layer of defense against Man-in-the-middle attacks.

When the user tries to connect to a secure gateway, and there is a certificate error due to expired, invalid date, wrong key usage, or CN mismatch , the user sees a red-colored dialog with Change Settings and Keep Me Safe buttons. The dialogs for Linux may look different from the ones shown in this document.

Clicking Keep Me Safe cancels the connection. The current connection attempt is canceled. If the user un-checks Block connections to untrusted servers , and the only issue with the certificate is that the CA is untrusted, then the next time the user attempts to connect to this secure gateway, the user will not see the Certificate Blocked Error Dialog dialog; they only see the following dialog:.

If the user checks Always trust this VPN server and import the certificate , then future connections to this secure gateway will not prompt the user to continue. When the client accepts an invalid server certificate, that certificate is saved in the client's certificate store. Previously, only the thumbprint of the certificate was saved. Note that invalid certificates are saved only when the user has elected to always trust and import invalid server certificates. There is no administrative override to make the end user less secure automatically.

When Strict Certificate Trust is enabled, the user sees an error message, and the connection fails; there is no user prompt. AnyConnect is configured to start before logon. A client certificate from the machine certificate store is used for authentication. You can specify whether you want users to authenticate using AAA with a username and password or using a digital certificate or both.

When you configure certificate-only authentication, users can connect with a digital certificate and are not required to provide a user ID and password.

To support certificate-only authentication in an environment where multiple groups are used, you may provision more than one group-url. Each group-url would contain a different client profile with some piece of customized data that would allow for a group-specific certificate map to be created.

The certificate used to authenticate the client to the secure gateway must be valid and trusted signed by a CA. A self-signed client certificate will not be accepted.

Select a connection profile and click Edit. If it is not already, click the Basic node of the navigation tree on the left pane of the window. In the right pane of the window, in the Authentication area, enable the method Certificate.

Click OK and apply your changes. Enrollment is always initiated automatically by the client. No user involvement is necessary. Enrollment is initiated automatically by the client and may be initiated manually by the user if configured. The user connects to the ASA headend using a connection profile configured for both certificate and AAA authentication.

This situation triggers the client to send an automatic SCEP enrollment request after the tunnel has been established using the entered AAA credentials. If SCEP enrollment is successful, the client presents a configurable message to the user and disconnects the current session.

The user can now connect using certificate authentication to an ASA tunnel group. If SCEP enrollment fails, the client displays a configurable message to the user and disconnects the current session. If configured to do so, the client automatically renews the certificate before it expires, without user intervention. The following steps describe how a certificate is obtained and a certificate-based connection is made when AnyConnect is configured for Legacy SCEP.

When the user initiates a connection to the ASA headend using a tunnel group configured for certificate authentication, the ASA requests a certificate for authentication from the client. A valid certificate is not available on the client. The connection cannot be established. This certificate failure indicates that SCEP enrollment needs to occur. The client presents a dialog box for the user to enter AAA credentials.

If access to the CA relies on the VPN tunnel being established, manual enrollment cannot be done at this time because there is currently no VPN tunnel established AAA credentials have not been entered. If the client is configured for manual enrollment and the Certificate Expiration Threshold value is met, a Get Certificate button displays on a presented tunnel group selection dialog box. Users can manually renew their certificate by clicking this button. If the certificate expires and the client no longer has a valid certificate, the client repeats the Legacy SCEP enrollment process.

The CA must be in auto-grant mode; polling for certificates is not supported. You can configure some CAs to email users an enrollment password for an additional layer of security. The CA password is the challenge password or token that is sent to the certificate authority to identify the user. The password can then be configured in the AnyConnect client profile, which becomes part of SCEP request that the CA verifies before granting the certificate.

The ASA does not indicate why an enrollment failed, although it does log the requests received from the client. Connection problems must be debugged on the CA or the client.

Identifying Enrollment Connections to Apply Policies:. On the ASA, the aaa. When Windows clients first attempt to retrieve a certificate from a certificate authority they may see a warning. When prompted, users must click Yes. This allows them to import the root certificate. It does not affect their ability to connect with the client certificate. Select Certificate Enrollment. Configure the Certificate Contents to be requested in the enrollment certificate.

For mobile clients, at least one certificate field must be specified. Set the following fields:. For example, if asa. When the user initiates the connection, the address chosen or specified must match this value exactly for Legacy SCEP enrollment to succeed. Configure the Certificate Authority attributes:. Optional Enter a thumbprint for the CA certificate. Configure which Certificate Contents to request in the enrollment certificate.

Optional Check Display Get Certificate Button to permit users to manually request provisioning or renewal of authentication certificates. The button is visible to users if the certificate authentication fails. Choose Server List from the navigation pane. Add or Edit a server list entry. For Legacy SCEP on the ASA, you must create a connection profile and group policy for certificate enrollment and a second connection profile and group policy for the certificate authorized VPN connection.

Do not enable the connection profile on the ASA. It is not necessary to expose the group to users in order for them to have access to it. Set the following fields. On the Basic pane, set the Authentication Method to Certificate. Do not enable this connection profile on the ASA. It is not necessary to expose the group to users in order for them to access it. If your Certificate Authority software is running on a Windows server, you may need to make one of the following configuration changes to the server to support SCEP with AnyConnect.

The following steps describe how to disable the SCEP challenge password, so that clients will not need to provide an out-of-band password before SCEP enrollment. On the Certificate Authority server, launch the Registry Editor. If the EnforcePassword key does not exist, create it as a new Key. Edit EnforcePassword, and set it to '0'. Exit regedit, and reboot the certificate authority server. The following steps describe how to create a certificate template, and assign it as the default SCEP template.

Launch the Server Manager. Choose Windows Server version for new template, and click OK. Adjust the Validity Period for your site. Most sites choose three or more years to avoid expired certificates. On the Cryptography tab, set the minimum key size for your deployment. On the Subject Name tab, select Supply in Request.

On the Extensions tab, set the Application Policies to include at least:. Click Apply , then OK to save new template. Edit the registry. Click Save , and reboot the certificate authority server. Configure AnyConnect to warn users that their authentication certificate is about to expire.

AnyConnect warns the user upon each connect until the certificate has actually expired or a new certificate has been acquired. Specify a Certificate Expiration Threshold. This is the number of days before the certificate expiration date, that AnyConnect warns users that their certificate is going to expire.

The default is 0 no warning displayed. The range is 0 to days. The following steps show all the places in the AnyConnect profiles where you configure how certificates are searched for and how they are selected on the client system. None of the steps are required, and if you do not specify any criteria, AnyConnect uses default key matching. AnyConnect reads the browser certificate stores on Windows.

Configure AnyConnect to present a list of valid certificates to users and let them choose the certificate to authenticate the session. Configure keys that AnyConnect tries to match, when searching for a certificate in the store. You can specify keys, extended keys, and add custom extended keys. You can also specify a pattern for the value of an operator in a distinguished name for AnyConnect to match.

Windows provides separate certificate stores for the local machine and for the current user. By default, it searches both, but you can configure AnyConnect to use only one. Users with administrative privileges on the computer have access to both certificate stores. Users without administrative privileges only have access to the user certificate store. Usually, Windows users do not have administrative privileges.

Selecting Certificate Store Override allows AnyConnect to access the machine store, even when the user does not have administrative privileges. The following table describes how AnyConnect searches for certificates on a client based on what Certificate Store is searched, and whether Certificate Store Override is checked. AnyConnect searches all certificate stores. AnyConnect is not allowed to access the machine store when the user does not have administrative privileges. This setting is the default.

This setting is appropriate for most cases. Do not change this setting unless you have a specific reason or scenario requirement to do so. AnyConnect is allowed to access the machine store when the user does not have administrative privileges.

AnyConnect searches the machine certificate store. AnyConnect is allowed to search the machine store when the user does not have administrative privileges. AnyConnect is not allowed to search the machine store when the user does not have administrative privileges. AnyConnect searches in the user certificate store only.

The certificate store override is not applicable because users without administrative rights can have access to this certificate store. AnyConnect uses client certificate stores only from the system PEM file store. Set Certificate Store. All— Default Directs the AnyConnect client to use all certificate stores for locating certificates. Machine—Directs the AnyConnect client to restrict certificate lookup to the Windows local machine certificate store.

User—Directs the AnyConnect client to restrict certificate lookup to the local user certificate stores. Choose Certificate Store Override if you want to allow AnyConnect to search the machine certificate store when users do not have administrative privileges. You can configure the AnyConnect to present a list of valid certificates to users and let them choose the certificate to authenticate the session.

An expired certificate is not necessarily considered invalid. For example, if you are using SCEP, the server might issue a new certificate to the client. Eliminating expired certificates might keep a client from connecting at all; thus requiring manual intervention and out-of-band certificate distribution.

AnyConnect only restricts the client certificate based on security-related properties, such as key usage, key type and strength, and so on, based on configured certificate matching rules.

This configuration is available only for Windows. By default, user certificate selection is disabled. To enable certificate selection, uncheck Disable Certificate Selection. AnyConnect reads PEM-formatted certificate files from the file system on the remote computer, verifies, and signs them.

In order for the client to acquire the appropriate certificates under all circumstances, ensure that your files meet the following requirements:. All certificate files must end with the extension.

All private key files must end with the extension. A client certificate and its corresponding private key must have the same filename.

For example: client. To create the PEM file certificate store, create the paths and folders listed below. Place the appropriate certificates in these folders:. Machine certificates are the same as PEM file certificates, except for the root directory. We do not recommend sharing the down link with users as the link expires after every five minutes of loading the AnyConnect settings page.

We recommend downloading the AnyConnect client directly from Cisco. Refer to the doc for the AnyConnect client release notes. AnyConnect requires a VPN client to be installed on a client device.

Please note, the download links on the Meraki dashboard expire after five minutes. The AnyConnect client for mobile devices can be downloaded via the respective mobile stores. You can also download other versions must be version 4. AnyConnect web deploy is not supported on the MX at this time.

An AnyConnect profile is a crucial piece for ensuring easy configuration of the AnyConnect client software, once installed. The MX does not support the use of custom hostnames for certificates e. Profiles can be used to create hostname aliases, thereby masking the Meraki DDNS with a friendly name for the end user. Cisco AnyConnect client features are enabled in AnyConnect profiles. Pre-login banner. Post-login banner. DSCP Preservation. Connecting and Disconnecting:. VPN load balancing. Backup server list.

Optimal Gateway Selection. SAML 2. Client Certificate Authentication. Manual user certificate management. Yes, using Chrome device capabilities. Manual server certificate management. SCEP legacy enrollment Please confirm for your platform. SCEP proxy enrollment Please confirm for your platform.

Automatic certificate selection. Manual certificate selection. Smart card support. Username and password. Double authentication. Group URL specified in server address. Group selection drop-down selection. Credential prefill from user certificate.

Save password. User interface:. Standalone GUI. Yes, limited functions. UI customization. UI localization. User preferences. Home screen widgets for one-click VPN access. AnyConnect specific status icon. Serial number or unique ID check. OS and AnyConnect version shared with headend. URI Handling:. Add connection entry. Connect to a VPN. Credential pre-fill on connect. Disconnect VPN. Import certificate. Import localization data. Import XML client profile.