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NSA 250M Network Security Appliance Series

NSA 250M Network Security Appliance Series
End-to-End Network Security Protection and Control

Dell™ SonicWALL™ NSA 250M and 250M Wireless-N high-performance, modular Next-Generation Firewalls offer branch offices and distributed enterprises in-depth frontline security, application and user control, network productivity and optional 802.11 dual-band wireless. The NSA 250M acts as the first line of network defense against viruses, Trojans, key-loggers and other application layer attacks, without compromising network performance. The NSA 250M Series can be extended with a variety of modules to provide deployment flexibility and reduce acquisition and maintenance costs.

NSA 250M features

The NSA 250M Series offers an extensive array of advanced networking and configuration flexibility features in an accessible, affordable platform that is easy to deploy and manage in a wide variety of environments.

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  • Specifications
  • Key Features
  • Brochure
  • Resources


Operating system SonicOS 5.9
Security Processor 2x 700 MHz
Memory (RAM) 512 MB
10 GbE SFP+ interfaces n/a
1 GbE SFP interfaces n/a
1 GbE Copper interfaces 5
1 GbE Copper Management interfaces n/a
Expansion Expansion Slot (Rear), SD Card, USB
Firewall inspection throughput 750 Mbps
Full DPI throughput 130 Mbps
Application inspection throughput 250 Mbps
IPS throughput 250 Mbps
Anti-malware inspection throughput 140 Mbps
IMIX throughput 210 Mbps
SSL Inspection and Decryption (DPI SSL) Available
VPN throughput 200 Mbps
Connections per second 3,200/sec
Maximum connections (SPI) 110,000
Maximum connections (DPI) 64,000
Single Sign On (SSO) Users 250
VLAN interfaces 35
SonicPoints supported (Maximum) 16
Site-to-Site VPN Tunnels 50
IPSec VPN clients (Maximum) 2(25)
SSL VPN licenses (Maximum) 2(15)
Encryption/Authentication DES, 3DES, AES (128, 192, 256-bit)/MD5, SHA-1
Key exchange Diffie Hellman Groups 1, 2, 5, 14
Route-based VPN RIP, OSPF
NSA 250M Regulatory
Regulatory Model Regulatory Model APL25-090
Compliance / Regulatory FCC Class A, ICES Class A, CE (EMC, LVD, RoHS), C-Tick, VCCI Class A, MSIP/KCC Class A, UL, cUL, TUV/GS, CB, Mexico CoC by UL, WEEE , REACH, ANATEL, BSMI, CU
NSA 250M/W Regulatory
Regulatory Model Regulatory Model APL25-091
Compliance / Regulatory FCC Class A, FCC Cert, ICES Class A, IC Cert, CE (EMC, LVD, RoHS, R&TTE), C-Tick, UL, cUL, TUV/GS, CB, Mexico CoC by UL, WEEE , REACH, ANATEL, BSMI, NCC Taiwan
IP address assignment Static, (DHCP PPPoE, L2TP and PPTP client), Internal DHCP server, DHCP Relay
NAT modes 1:1, many:1, 1:many, flexible NAT (overlapping IPS), PAT, transparent mode
Routing protocols BGP, OSPF, RIPv1/v2, static routes, policy-based routing, multicast
QoS Bandwidth priority, max bandwidth, guaranteed bandwidth, DSCP marking, 802.1p
Authentication XAUTH/RADIUS, Active Directory, SSO, LDAP, Novell, internal user database, Terminal Services, Citrix
VoIP Full H323-v1-5, SIP
Certifications VPNC, ICSA Firwall, ICSA Anti-Virus
Certifications pending FIPS 140-2, Common Criteria EAL1+
Common Access Card (CAC) SonicOS 5.9
High Availability Stateful HA (License Required)
Form factor Desktop (1U Rack Mountable Kit Available)
Fans 2 Internal fans
Power Supply (W) 36
Maximum power consumption (W) 12 / 16
Input power 100-240 VAC, 60-50 Hz
Dimensions 1.4 x 7.1 x 10.7 (3.5 x 18 x 27cm)
Weight 3.05 lbs/1.38 kg/3.15 lbs/1.43 kg
WEEE weight 4.4 lbs/2.0kg/4.65 lbs/2.11 kg
Shipping weight 5.6 lbs / 5.9 lbs
MTBF (Years) 23.4 / 14.1
Environment 40-105 F, 0 - 40 C
Humidity 5 - 95% non- condensing

Key Features

Distributed network security

The NSA 250M Series provides anti-malware, intrusion prevention and web content filtering at branch offices without compromising performance at those locations. learn more

Application control and visualization

IT administrators can granularly view and control bandwidth-consuming and potentially dangerous application traffic over the network, even between widely distributed locations. learn more

WAN acceleration

Network productivity can increase because IT administrators can identify and throttle or block unauthorized, unproductive and non-work-related appliances and websites such as Facebook® or YouTube® and optimize WAN traffic when integrated with Dell SonicWALL WAN Acceleration Appliance (WXA) solutions. learn more

Gateway anti-malware

Gateway anti-virus and anti-spyware provide high-performance protection against millions of unique pieces of malware with near zero latency and no file size limitations. This provides a first layer of defense and stops malware before it can reach systems on your network. learn more

Integrated modules support

The NSA 250M Series can be extended with a variety of modules, such as T1/E1, DSL and SFP Modules, to provide deployment flexibility and additional failover capabilities. By consolidating equipment, the modular solution reduces acquisition and maintenance costs. learn more

Mobile Connect

Mobile Connect™, available as a mobile app for Apple® iOS , Mac OSX, Kindle Fire and Google® Android™ mobile devices and embedded with Windows 8.1 devices, provides users with simple, policy-enforced access to corporate and academic resources over encrypted SSL VPN connections. learn more

Virtual Private Networking

High-performance Virtual Private Networks (VPNs) easily scale to thousands of endpoints and branch offices. And Dell SonicWALL Clean VPN™ technology protects the integrity of both your IPSec and SSL VPN traffic, securing your remote access tunnels and decontaminating the traffic running across it. learn more

High performance

Dell SonicWALL’s patented Reassembly-Free Deep Packet Inspection® engine1 combined with the NSA 250M dual-core security platform is capable of inspecting hundreds of thousands of connections simultaneously across all ports. With nearly zero latency and without file size limitations, the system provides 130 Mbps of Deep Packet Inspection across 5 GbE copper interfaces.

Platform Features

SonicOS provides key features designed to ensure the security of your network with an intuitive graphical user interface for increased functionality and ease of use.
Deep Packet Inspection firewall

Dell SonicWALL Reassembly-Free Deep Packet Inspection™ technology scans against multiple application types and protocols to protect against internal and external threats at both the application layer and the network layer. learn more

Deep Packet Inspection for SSL Encrypted Traffic (DPI-SSL)

DPI-SSL transparently decrypts, inspects and re-encrypts SSL encrypted traffic to allow security services to be applied to all traffic that traverses Dell SonicWALL Next-Generation Firewalls.

SSL VPN remote access

Integrated SSL VPN technology enables clientless, remote access to email, files, intranets, and applications from a variety of platforms. An SSLVPN client can also be automatically pushed out to the client and auto-configured to provide secure layer 3 connectivity. learn more

Clean Wireless

Dell SonicWALL firewalls can be extended with secure wireless access points, SonicPoints, to provide seamless and secure 802.11 a/b/g/n wireless networks protected with the Dell SonicWALL Clean Wireless technology. learn more

Powerful reporting

Historical reporting on user activity is available through Dell SonicWALL Analyzer software and real-time application analysis through powerful visualization tools. learn more

Secure Network Optimization

Stay ahead of today’s constantly evolving landscape of threats and application-related issues with an advanced security platform that consolidates Dell SonicWALL Next-Generation Firewall features for enterprises along with WAN acceleration for distributed offices to maximize security and control with minimum network latency. learn more

Business continuity

Your network will continue to operate without interruption even if there is a hardware or software failure with Active/Passive failover. Stateful synchronization across the appliances enables failover without interruption to existing network traffic and VPN tunnels. learn more

Centralized Policy Management

The Dell SonicWALL Global Management System (GMS®) provides flexible, powerful and intuitive tools to manage configurations, view real-time monitoring metrics and integrate policy and compliance reporting, all from a central location. learn more

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