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Remote System or End User Requirements
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Specifications or Use Suggestions
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Starting Clientless SSL VPN |
Connection to the Internet |
Any Internet connection is supported, including:
- Home DSL, cable, or dial-up
- Public kiosks
- Hotel hook-ups
- Airport wireless nodes
- Internet cafes
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Clientless SSL VPN-supported browser |
We recommend the following browsers for Clientless SSL VPN. Other browsers may not fully support Clientless SSL VPN features. On Microsoft Windows:
- Internet Explorer 8
- Firefox 8
On Linux:
On Mac OS X:
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Cookies enabled on browser |
Cookies must be enabled on the browser in order to access applications via port forwarding. |
URL for Clientless SSL VPN |
An HTTPS address in the following form:
where
address is the IP address or DNS hostname of an interface of the ASA (or load balancing cluster) on which Clientless SSL VPN is enabled.
For example: https://10.89.192.163 or https://cisco.example.com.
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Clientless SSL VPN username and password |
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[Optional] Local printer |
Clientless SSL VPN does not support printing from a Web browser to a network printer. Printing to a local printer is supported. |
Using the Floating Toolbar in a Clientless SSL VPN Connection |
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A floating toolbar is available to simplify the use of Clientless SSL VPN. The toolbar lets you enter URLs, browse file locations, and choose preconfigured Web connections without interfering with the main browser window. If you configure your browser to block popups, the floating toolbar cannot display. The floating toolbar represents the current Clientless SSL VPN session. If you click the Close button, the ASA prompts you to close the Clientless SSL VPN session.
Tip To paste text into a text field, use Ctrl-V. (Right-clicking is not enabled on the Clientless SSL VPN toolbar.)
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Web Browsing |
Usernames and passwords for protected websites |
Using Clientless SSL VPN does not ensure that communication with every site is secure. See “Communicating Security Tips.” |
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The look and feel of Web browsing with Clientless SSL VPN may be different from what users are accustomed to. For example:
- The Clientless SSL VPN title bar appears above each Web page.
- You access websites by:
– Entering the URL in the Enter Web Address field on the Clientless SSL VPN Home page. – Clicking on a preconfigured website link on the Clientless SSL VPN Home page. – Clicking a link on a webpage accessed via one of the previous two methods.
Also, depending on how you configured a particular account, it may be that:
- Some websites are blocked.
- Only the websites that appear as links on the Clientless SSL VPN Home page are available.
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Network Browsing and File Management |
File permissions configured for shared remote access |
Only shared folders and files are accessible via Clientless SSL VPN. |
Server name and passwords for protected file servers |
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Domain, workgroup, and server names where folders and files reside |
Users may not be familiar with how to locate their files through your organization network. |
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Do not interrupt the Copy File to Server command or navigate to a different screen while the copying is in progress. Interrupting the operation can cause an incomplete file to be saved on the server. |
Using Applications (called Port Forwarding or Application Access) |
Note On Mac OS X, only the Safari browser supports this feature. |
Note Because this feature requires installing Oracle Java Runtime Environment (JRE) and configuring the local clients, and because doing so requires administrator permissions on the local system, it is unlikely that users will be able to use applications when they connect from public remote systems. |
Caution
Users should always close the Application Access window when they finish using applications by clicking the
Close icon. Failure to close the window properly can cause Application Access or the applications themselves to be inaccessible.
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Client applications installed |
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Cookies enabled on browser |
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Administrator privileges |
User must have administrator access on the computer if you use DNS names to specify servers because modifying the hosts file requires it.
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Oracle Java Runtime Environment (JRE) version 1.4.x and 1.5.x installed. JavaScript must be enabled on the browser. By default, it is enabled. |
If JRE is not installed, a pop-up window displays, directing users to a site where it is available.
On rare occasions, the port forwarding applet fails with Java exception errors. If this happens, do the following:
1. Clear the browser cache and close the browser. 2. Verify that no Java icons are in the computer task bar. Close all instances of Java. 3. Establish a Clientless SSL VPN session and launch the port forwarding Java applet. |
Client applications configured, if necessary.
Note The Microsoft Outlook client does not require this configuration step.
All non-Windows client applications require configuration.
To see if configuration is necessary for a Windows application, check the value of the Remote Server.
- If the Remote Server contains the server hostname, you do not need to configure the client application.
- If the Remote Server field contains an IP address, you must configure the client application.
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To configure the client application, use the server’s locally mapped IP address and port number. To find this information: 1. Start Clientless SSL VPN on the remote system and click the Application Access link on the Clientless SSL VPN Home page. The Application Access window appears. 2. In the Name column, find the name of the server to use, then identify its corresponding client IP address and port number (in the Local column). 3. Use this IP address and port number to configure the client application. Configuration steps vary for each client application. |
Note Clicking a URL (such as one in an -email message) in an application running over Clientless SSL VPN does not open the site over Clientless SSL VPN. To open a site over Clientless SSL VPN, cut and paste the URL into the Enter (URL) Address field. |
Using email via Application Acces s |
Fulfill requirements for Application Access (See Using Applications) |
To use mail, start Application Access from the Clientless SSL VPN Home page. The mail client is then available for use.
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Note If you are using an IMAP client and you lose your mail server connection or are unable to make a new connection, close the IMAP application and restart Clientless SSL VPN. |
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Other email clients |
We have tested Microsoft Outlook Express versions 5.5 and 6.0. Clientless SSL VPN should support other SMTPS, POP3S, or IMAP4S email programs via port forwarding, such as Lotus Notes, and Eudora, but we have not verified them. |
Using email via Web Access |
Web-based email product installed |
Supported products include:
For best results, use OWA on Internet Explorer 8.x or higher, or Firefox 8.x.
Other web-based email products should also work, but we have not verified them. |
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Using email via email Proxy |
SSL-enabled mail application installed Do not set the ASA SSL version to TLSv1 Only. Outlook and Outlook Express do not support TLS. |
Supported mail applications:
- Microsoft Outlook
- Microsoft Outlook Express versions 5.5 and 6.0
Other SSL-enabled mail clients should also work, but we have not verified them. |
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Mail application configured |
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