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Web VPN on ASA5500 and .NET Compact Framework

I am developing an application using the Microsoft .NET Compact Framework that runs on a Symbol PPT8800 industrial PDA.

I would like the application to be able to connect to an ASA5500 using the webvpn feature so that it can securely access a web service on an internal web server to transfer data. The benefit of using the WebVPN feature is it uses standard SSL and does not require a VPN to be initiated first.

Also Movian no longer sell their VPN software to ‘end users’ for establishing an IPSEC VPN from a pocketpc to a cisco firewall.

Using the WebVPN using a browser such as Internet Explorer or Firefox is straight forward.

I am after the sequence of requests that my application would need to make to the ASA5500 to allow the application to authenticate and gain access to the webservice.

I understand the first request would be; for a firewall with ip address 10.20.0.254:

https://10.20.0.254/index.html

This is the standard login page.

This page has a ‘form’ that uses the POST method for sending the username and password back to the ASA5500.

However when I have tried to POST the username and password using the form input elements (username,password,Login,next) it just returns the previous login page.

Any help would be greatly appreciated.

2 REPLIES
Anonymous
N/A

Re: Web VPN on ASA5500 and .NET Compact Framework

WebVPN uses Secure Sockets Layer Protocol and its successor, Transport Layer Security to provide a secure connection between remote users and specific, supported internal resources that you configure at a central site. The security appliance recognizes connections that need to be proxied, and the HTTP server interacts with the authentication subsystem to authenticate users.

http://www.cisco.com/univercd/cc/td/doc/product/multisec/asa_sw/v_70/config/webvpn.htm

New Member

Re: Web VPN on ASA5500 and .NET Compact Framework

Thanks for the reply Pengke11

I think I have worked out how to do it (On the full .NET Framework, just need to try the .NET Compact Fraemwork).

It revolves around passing back a session cookie that the ASA5510 generates when you login, with each subsequent request.

Regards

Peter

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