Firewalls & VPNs

Whether it's Cisco's Adaptive Security Appliance (ASA) technology or Juniper's Netscreen security appliances, L3n can configure your firewall from scratch. We can configure a custom access policy, site to site or dynamic VPN connectivity and any necessary NAT or port-forwarding to allow external access to on-site servers based in a DMZ.

Site-to-site VPNS can give secure connectivity between buildings to allow direct connectivity for company data, VoIP and Video conferencing.

In fact, whatever you need regarding the configuration of your firewall and ultimately your network security, L3n can help.

Here's a bit more information on one of the most important features of your firewall, the capability to give you a secure connection using the public Internet:

VPNs - Virtual Private Networks

A Virtual Private Network transports confidential information across the open Internet in a secure manner. The connection is encrypted, to prevent eavesdropping, and authenticated, so that you can be sure the person you are sending to data to is who they say they are.

There are two basic designs of VPN:

• Site to site VPN - this type will securely inter-connect whole buildings/floors/departments to others in your company across your general Internet link. This generally uses an item of hardware at each end of the connection.
• Dynamic VPN - this is normally used by teleworkers/sales staff etc who are mobile to give them a secure connection back into the office. Normally, they will be running a 'VPN client' which is software installed on a laptop or desktop which will then connect back into an item of hardware back in the office.

Each of these types can use several different protocols:

• IPSEC - this is a suite of protocols which provide encryption, authentication and other security features - very sophisticated but utilsation as a dynamic VPN requires a software client. Can be used for both Site to site and dynamic VPNs.
• PPTP - Used by Microsoft Windows for their dynamic VPNs into their servers - also can use L2TP or IPSEC
• SSL or to be more technically correct, TLS - this is normally used for web-browsers to get secure access to banks etc but can be used for full dynamic VPNs, or in the case of our new VPNX service, Site to site VPNs

Given all these options and their configuration, it's not surprising to note that setting up VPNs can be complex. L3n uses best in class hardware to provide this valuable encrypted data transport. For example, we could install a Juniper SA2500 SSL-VPN concentrator to allow your staff secure access back to the main network from a simple browser.

L3n is a Cisco and Juniper partner and can supply equipment to secure your remote network access and/or your inter-office conectivity, ranging from the small Cisco ASA5505 Firewall, through the Juniper SA2500 SSL concentrator to large Cisco ASA5580 and Juniper ISG firewalls.

Your business needs VPNs to allow your staff to transfer data securely and safely when they are away from the office, whether they are tele-working or are sales staff requiring secure access while mobile or simply to connect seperate building securely over the Internet. We are more than happy to discuss your requirements, supply and configure the equipment, train you and your staff on how to use the VPN and even put a support contract in place to 'provide you with network peace of mind'.

Call 0845 450 4944 for a no-obligation quote