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The Unified Manager utility is well designed and provides easy access to all functions. We opted for the transparent bridge mode for testing in the lab and found installation easy enough and aided further by a useful CD-ROM based wizard. HTTPS scanning is also conspicuous by its absence. It can only tag the subject line of suspect messages so you'll need rules for handling these either on your mail server or at each mail client.
There are pros and cons here as no client configuration is necessary but for mail it can't perform quarantining. For the mail and web content filtering services, NetASQ uses transparent proxies. Web browser access isn't available as management is carried out by NetASQ's own Unified Manager, Realtime Monitor and Event Reporter utilities. As the appliance represents a single point of failure, HA is an essential feature and the U6000 supports active/passive configurations.įor deployment the U6000 can route traffic between selected network interfaces, function as a transparent bridge or use a combination of the two. The appliance can support up to 24 network interfaces and the wide range of spare expansion slots allows you to mix copper and fibre. Network connectivity options are extensive as along with two embedded Gigabit ports, the price also includes a quad-port Gigabit card. ASQ is designed to reduce scanning overheads as it handles all firewall, NAT and VPN functions itself before passing it over to the mail and web proxies so reducing the number of processes required. Central to the appliance is the ASQ (advanced security qualification) engine which runs on a hardened FreeBSD kernel and uses three traffic inspection modes where it watches out for malicious content, employs behavioural and statistical analysis and uses twenty signature databases. The U6000 brings together NetASQ's firewall and IPS capabilities and serves them up with anti-virus, anti-spam and web content filtering services. Another bonus is NetASQ's licensing model as it provides support for unlimited users as standard. NetASQ aims to solve this with its latest U6000 which it claims as the first carrier grade UTM appliance with a maximum throughput of 5Gbps. However, the high costs for support, management and maintenance are driving many towards UTM appliances as these can offer a complete range of security features in a more cost-effective an easily managed solution.Ī major concern for larger businesses is performance as a single appliance handling all security functions has the potential to become a bottleneck.
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