Dell SonicWALL NSA 250M Wireless-N review

The SonicWALL NSA 250M Wireless-N appliance offers SMBs and remote offices an extensive range of tough gateway security measures, but the cost can add up quickly.

Wireless features

For wireless operations, the appliance's AP can provide 2.4GHz b/g/n or 5GHz a/n services but not both together. However, it's still quite versatile as it can present multiple virtual APs (VAPs) each with their own encryption profiles.

You need to create a new wireless zone and interface where the later is a VLAN on the parent wireless interface. Next, you create an SSID and assign the new wireless VLAN interface to it.

The VAP needs to be made a member of the appliance's internal AP group and you also give it a VAP profile which defines the authentication mode you want to use. It's all a bit fiddly but it does mean you can use separate SSIDs for guest access or other wireless services and from the zone menu, decide which security profiles you want to apply to each one.


There's no denying the NSA 250M Wireless-N is offering tough gateway security and the deep packet inspection option provides extensive application controls. It can be easily customised to suit but this all comes at a comparatively high price.


The NSA 250M Wireless-N delivers an impressive range of security measures which can be toughened up further with SonicWALL’s deep packet inspection option. It’s a good choice as an all-in-one wired and wireless security appliance for SMBs. Although we found it can be challenging to configure and each option will increase costs significantly.

Chassis: Desktop

Memory: 256MB RAM, 32MB Flash

Network: 5 x Gigabit

Wireless: 2.4GHz n/b/g or 5GHz a/n

Ports: USB, RJ-45 console

Management: Web browser

Options: Appliance and 1 year TotalSecure bundle, £1,458 ex VAT

Modules: 4-port Gigabit, £265; ADSL Annex B, £205; T1/E1, £414 (all ex VAT)

Featured Resources

Choosing a collaboration platform

Eight questions every IT leader should ask

Download now

Performance benchmark: PostgreSQL/ MongoDB

Helping developers choose a database

Download now

Customer service vs. customer experience

Three-step guide to modern customer experience

Download now

Taking a proactive approach to cyber security

A complete guide to penetration testing

Download now

Most Popular

Microsoft is submerging servers in boiling liquid to prevent Teams outages
data centres

Microsoft is submerging servers in boiling liquid to prevent Teams outages

7 Apr 2021
How to find RAM speed, size and type

How to find RAM speed, size and type

8 Apr 2021
Roadmap 2021: What’s coming from 3CX
Advertisement Feature

Roadmap 2021: What’s coming from 3CX

30 Mar 2021