Browsing All Posts filed under »VPN«

Isakmp keepalive and IPad and your ISP

December 7, 2010


Have you already experienced that the VPN session times out without after some minutes on your IPad. No matter if the keepalive setting is reached or not, it will disconnect after some minutes. There is a document for IPads what the support regarding the IPSEC. Here ist the link: (Page 68 – Certificate section.) […]

Configuring SSL VPN for Anyconnect

November 28, 2010


The AnyConnect client provides remote end users running Microsoft Vista, Windows XP or Windows 2000, Linux, or Macintosh OS X, with the benefits of a Cisco SSL VPN client, and supports applications and functions unavailable to a clientless, browser-based SSL VPN connection. In addition, the AnyConnect client supports IPv6 over an IPv4 network. The AnyConnect […]

Certificate based RA VPN with openssl

November 22, 2010


The basic certificate based VPN is as easy as the VPN with pre-shared key. There is only some additional steps required from the ASA site. The problems arise if the clients starts to use certificates without knowing what and how they should do. As a Firewall administrator you can not have responsibility for all clients, […]

Basic Site to Site VPN with pre-shared key

November 19, 2010


In the following example I configured a basic L2L VPN between 2 PIX firewall with pre-shared key. The Firewalls has different software versions, the sp2 is an old 6.3.4 version firewall (no more support..). sp1 (Cisco PIX Security Appliance Software Version 7.1(2), PIX-515E) E0 – ssw fa0/20 E1 – ssw fa0/12 sp2 (Cisco PIX Firewall […]