ipsec

Nessus/OpenVAS wrapper for ike-scan

ike-scan is a great tool to audit VPN/IPSec implementations.  This tool, which runs under Lunix, Unix, MacOS and Windows, can be found at www.nta-monitor.com/tools/ike-scan/ (Latest version at time of writing is 1.9). My Nessus ike-scan NASL wrapper may or may not work with earlier versions or newer versions, so test test test) Some of the […]

Windows XP L2TP over IPSec dialup client VPN to a Juniper ScreenOS firewall, using Certificates

Before looking at the various configuration steps, we’ll have to take the following assumptions into account : – We don’t want to use the Netscreen Remote client, but we want to use the Windows XP built-in dialup VPN technology that allows us to build PPTP or L2TP/IPSec connections.  Juniper screenOS does not support PPTP (which […]

IPSec VPN between Windows Server 2008 and Juniper ScreenOS

In this blog post, I will show you how to set up a IPSec VPN tunnel between a Windows Server and a Juniper ScreenOS based firewall and route traffic between hosts that are located behind these 2 VPN gateways. The Windows Server will acts as a gateway to build a VPN tunnel towards the Juniper […]

Building IPSec VPN with Juniper Netscreen ScreenOS (CJFV)

A few days ago, I have posted some ScreenOS basics on this blog. Today, it is time to take it one step further and to look at setting up and especially troubleshooting IPSec VPN’s with Juniper Netscreen devices. The need for VPN A VPN can be defined as the simulation of a private connection by […]

Juniper : Setting up an IPSec VPN tunnel between a Juniper Netscreen firewall/vpn device and a Cisco VPN device

Today, I will explain the (easy) steps to set up a route-based IPSec VPN tunnel between a Juniper Netscreen firewall/VPN device and a remote Cisco device (such as Cisco ASA) If you are looking for more generic information on IPSec and building VPNs with Juniper, take a look at my blog post on VPNs with […]

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