SRX2300 Firewall Datasheet

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Product Overview

The firewall's role must expand as data centers evolve from traditional architectures to distributed ones. Rather than being a perimeter technology, firewalls need to be part of a security fabric woven throughout the network. A security fabric ensures that security is maintained at every point of connection.

Juniper's Connected Security Distributed Services Architecture, managed by Juniper Security Director Cloud, offers a high-performance, scalable, and easy-to-manage firewall solution to secure today’s distributed data centers. Juniper Networks SRX2300 line of Firewalls is integral to this new architecture and it empowers organizations to operationalize security across their networks. This 1 U, power-efficient firewall features built-in Zero Trust, Ethernet VPN-Virtual Extensible LAN (EVPN-VXLAN) fabric integration, and AI-Predictive Threat Prevention to secure your network.


Product Description

Juniper Networks® SRX2300 Firewall is a high-performance, next-generation firewall (NGFW) designed to provide reliable network protection for your enterprise campus edge and data center edge. It also supports roaming, SD-WAN large branch, and SD-WAN secure hub use cases. Combining carrier-grade routing with state-of-the-art switching, this platform delivers robust security, effective threat detection, and comprehensive automation and mitigation capabilities.

Figure 1: Juniper SRX Series Firewalls have achieved the highest scores in security effectiveness by CyberRatings and NetSecOpen

Figure 1: Juniper SRX Series Firewalls have achieved the highest scores in security effectiveness by CyberRatings and NetSecOpen

SRX2300 delivers NGFW features that support the changing needs of cloud-enabled enterprise networks and data centers. Whether rolling out new services within an enterprise campus, connecting to the cloud seamlessly, complying with industry standards, or achieving operational efficiency, the SRX2300 empowers organizations to operationalize Zero Trust principles at scale while realizing their business objectives. The SRX2300 protects critical corporate assets with intrusion prevention system (IPS), follow-the-user and follow-the-application access policies, and Juniper’s AI-Predictive Threat Prevention. Furthermore, SRX2300 works with Juniper cloud security solutions to secure hybrid cloud environments with networkwide visibility and control, providing consistently secure on-premises and cloud environments.

As network architectures become more distributed and decentralized, Juniper Networks SRX Series Firewalls ensure seamless integration with other Juniper and third-party networking platforms and facilitate architectural transformation. At the same time, the NGFWs facilitate architectural transformation, taking organizations from on-premises to hybrid cloud environments seamlessly and cost-effectively. SRX Series Firewalls are the first to implement industry-standard Ethernet VPN (EVPN) Type 5 and Virtual Extensible LAN (VXLAN) protocols within data center environments, enabling the SRX2300 to act as a secure, fabric-aware leaf in the data center spine-leaf architecture.

The SRX2300 participates in the industry-first Connected Security Distributed Services Architecture, enabling organizations to scale horizontally and elastically, simplifying the operational management of large-scale firewall networks. With this architecture, several SRX2300 platforms can work together as a single large logical firewall to provide higher performance and scale security.

The SRX2300 is powered by the Junos® operating system, which underpins and helps secure the world’s largest mission-critical enterprise and service provider networks. It is managed by Juniper Security Director Cloud, Juniper’s unified management experience that connects the organization’s current deployments with future architectural rollouts. Security Director Cloud uses a single policy framework, enabling consistent security policies across any environment and expanding Zero Trust to all parts of the network, from the edge into the data center. This provides unbroken visibility, policy configuration, administration, and collective threat intelligence all in one place.


Architecture and Key Components

The SRX2300 hardware and software architecture provides cost-effective security in a compact, scalable 1U form factor. Purpose built to protect network environments, the SRX2300 incorporates multiple security services and networking functions on top of Junos OS, providing highly-customizable threat protection, automation, and integration capabilities. Best-in-class advanced security capabilities on the SRX2300 are offered in the data center, enterprise campus, and regional headquarters deployments with IMIX traffic patterns.

Built-In Zero Trust

To increase trust and streamline operations, the SRX2300 features several built-in Zero Trust device capabilities, including an embedded Trusted Platform Module (TPM) 2.0 and cryptographically signed device ID. The SRX2300 supports RFC-compliant Secure Zero-Touch Provisioning (sZTP) to efficiently, expediently, and remotely deploy products in your network. Additionally, the SRX2300 supports MACsec at wire speed, ensuring data integrity and confidentiality.


Connected Security Distributed Services Architecture

The SRX2300 is part of Juniper's Connected Security Distributed Services Architecture, revolutionizing data center security. With Juniper's Connected Security Distributed Services Architecture, firewall performance can scale horizontally by interconnecting traffic forwarding and security services across multiple locations. The Juniper solution also provides automated failover and backup nodes for forwarding and inspection components. In addition to redundancy and load balancing, Juniper's Connected Security Distributed Services Architecture simplifies how large-scale data center firewall networks are managed and operated. Regardless of how many additional firewall engines across the various form factors (physical, virtual, containerized) are added, they can all be managed as one logical unit. This centralized management eliminates the complexity that has been an unintended consequence of a traditional scale-out approach.


Features and Benefits

Business RequirementFeature/SolutionSRX2300 Advantages
High performanceHardware-accelerated encryption/decryption
  • Offloads CPU-intensive encryption/decryption tasks
  • Improves performance for SSL and IPsec
High-quality, end user experienceApplication visibility and control
  • Updates application continuously and decodes custom applications
  • Controls and prioritizes traffic based on application and user role
  • Inspects and detects applications inside SSL-encrypted traffic, including Web and SaaS
Advanced threat protectionNGFW Services: IPS, antivirus, antispam, Web filtering
Juniper Advanced Threat Prevention Cloud: sandboxing, Encrypted Traffic Insights, SecIntel threat intelligence feeds
  • Prevents exploits with 99.9% effectiveness2; signatures update in real time
  • Protects against known malware and malicious Web and DNS traffic
  • Sandboxing for unknown malware across multiple OS types, including iOS, Windows, Android, and CentOS
  • Delivers threat intelligence in an open platform to accommodate third-party and custom threat feeds
  • Detects threats hidden inside encrypted traffic without decrypting
Zero-day protectionJuniper’s AI-Predictive Threat Prevention
  • Predicts and prevents malware at line rate by using AI to identify threats from packet snippets effectively
  • Eliminates patient-zero infections
  • Auto-generates protective signatures that remain active for the full attack lifecycle, keeping the network safe from subsequent attacks
Secure data transactionsJuniper Secure Connect: IPsec VPN, remote access/SSL VPN
  • Provides high-performance IPsec VPN with dedicated crypto engine
  • Offers diverse VPN options for various network designs, including remote access and dynamic site-to-site communications
  • Simplifies large VPN deployments with auto-VPN
  • Includes hardware-based crypto acceleration
  • Secure and flexible remote access SSL VPN
Advanced networking servicesRouting, secure wire
  • Supports carrier-class advanced routing and quality of service (QoS)
Security embedded into the data center fabricEVPN-VXLAN (EVPN Type 5 route)
  • Enhances tunnel inspection for VXLAN encapsulated traffic with Layer 4-7 security services
  • Eases operations with Type 5 support through BGP
  • Does not require decapsulation for EVPN-VXLAN traffic
ReliabilityChassis cluster, MNHA, redundant power supplies
  • Provides stateful configuration and session state synchronization
  • Supports active/active and active/backup deployment scenarios
  • Offers highly available hardware with redundant power supply unit (PSU) and fans
Easy to manage and scaleJuniper Security Director Cloud, on-box GUI
  • Provides centralized management via Juniper’s unified management experience, including zero-touch provisioning (ZTP), unbroken visibility, intelligent rule placement, and simplified policy configuration and automation
  • Supports Network Address Translation (NAT) and automated IPsec VPN deployments via wizards
  • Supports on-box GUI
Built-in Zero Trust capabilitiesDevID with TPM 2.0 Module
  • Verifies the device’s trust posture easily
  • Provides cryptographically signed device ID that supports RFC-compliant sZTP for hardware and software attestation
  • Mitigates the risks of supply chain attacks
Low TCOJunos OS
  • Integrates routing and security capabilities into a single device
  • Reduces OpEx with Junos OS automation capabilities
  • Automates integration with other devices running Junos OS, such as Juniper MX, PTX, and ACX routers; EX and QFX switches; and Cloud-Native Contrail Networking (CN2)

2Exploit block rate results tested by CyberRatings’ 2023 Enterprise Firewall test report

Figure 2: Juniper Networks SRX2300 next generation firewall

Figure 2: SRX2300 Firewall

Software Specifications

Firewall Services

  • Stateful firewall services
  • Zone-based firewall
  • Screens and distributed denial of service (DDoS) protection
  • Protection from protocol and traffic anomalies
  • Unified Access Control (UAC)
  • Integration with Juniper Mist Access Assurance


Carrier-Grade Network Address Translation (CGNAT)

  • Carrier-grade Network Address Translation (Large-scale NAT)
  • IPv4 and IPv6 address translation NAT44, NAPT44, NAT66, NAPT66, NAT64, NAT46
  • Static and dynamic 1-1 translation
  • Source NAT with Port Address Translation (PAT)
  • Destination NAT with Port Address Translation (PAT)
  • Persistent NAT (EIM/EIF)
  • Port Block Allocation (PBA)
  • Deterministic NAT (DetNAT)
  • Port overload
  • Twice-NAT44
  • DS-lite and Port Control Protocol (PCP)


VPN Features

  • Tunnels: Site-to-site, hub and spoke, dynamic endpoint, AutoVPN, ADVPN, Group VPN (IPv4/ IPv6/Dual Stack)
  • Juniper Secure Connect: Remote access IPsec/SSL VPN
  • Configuration payload: Yes
  • IKE encryption algorithms: Prime, 3DES-CBC, AEC-CBC, AES-GCM, Suite B
  • Authentication: Pre-shared key and public key infrastructure (PKI) (X.509)
  • IPsec: Authentication Header (AH) / Encapsulating Security Payload (ESP) protocol
  • IPsec authentication algorithms: hmac-md5, hmac-sha-196, hmac-sha-256
  • IPsec encryption algorithms: Prime, DES-CBC, 3DES-CBC, AEC-CBC, AES-GCM, Suite B
  • Perfect forward secrecy, anti-replay
  • Internet Key Exchange: IKEv1, IKEv2
  • Monitoring: Standard-based dead peer detection (DPD) support, VPN monitoring
  • VPNs GRE, IP-in-IP, and MPLS


High Availability Features

  • Virtual Router Redundancy Protocol (VRRP)–IPv4 and IPv6
  • Stateful high availability: Dual box clustering
    • Active/passive
    • Active/active
    • Configuration synchronization
    • Firewall session synchronization
    • Device/link detection
    • In-Service Software Upgrade (ISSU)
    • IP monitoring with route and interface failover
    • BFD monitoring 
  • Chassis cluster HA and Multinode HA (MNHA)


Application Security Services (offered as advanced security subscription license)

  • Application visibility and control
  • Application QoS
  • Advanced/application policy-based routing (APBR)
  • Application Quality of Experience (AppQoE)
  • Application-based multipath routing
  • User-based firewall


Threat Defense and Intelligence Services (offered as an advanced security subscription license)

  • Intrusion prevention system
  • AI-Predictive Threat Prevention
  • Antivirus
  • Antispam
  • Category/reputation-based URL filtering
  • SSL proxy/inspection
  • Protection from botnets (command and control)
  • Adaptive enforcement based on GeoIP
  • Juniper Advanced Threat Prevention, a cloud-based SaaS offering to detect and block zero-day attacks
  • Adaptive Threat Profiling
  • Encrypted Traffic Insights
  • SecIntel threat intelligence
  • Juniper ATP virtual appliance, a distributed, on-premises advanced threat prevention solution to detect and block zero-day attacks


Routing Protocols

  • IPv4, IPv6, static routes, RIP v1/v2
  • OSPF/OSPF v3
  • BGP with route reflector
  • IS-IS
  • Multicast: Internet Group Management Protocol (IGMP) v1/v2, Protocol Independent Multicast (PIM) sparse mode (SM)/ source-specific multicast (SSM), Session Description Protocol (SDP); Distance Vector Multicast Routing Protocol (DVMRP), Multicast Source Discovery Protocol (MSDP), reverse path forwarding (RPF)
  • Encapsulation: VLAN, Point-to-Point Protocol over Ethernet (PPPoE)
  • Virtual routers
  • EVPN-VXLAN (EVPN Type 5 route)
  • Policy-based routing, source-based routing
  • Equal-cost multipath (ECMP)


QoS Features

  • Support for 802.1p, DiffServ code point (DSCP), EXP
  • Classification based on VLAN, data-link connection identifier (DLCI), interface, bundles, or multifield filters
  • Marking, policing, and shaping
  • Classification and scheduling
  • Weighted random early detection (WRED)
  • Guaranteed and maximum bandwidth
  • Ingress traffic policing
  • Virtual channels


Network Services

  • Dynamic Host Configuration Protocol (DHCP) client/server/ relay
  • Domain Name System (DNS) proxy, dynamic DNS (DDNS)
  • Juniper real-time performance monitoring (RPM) and IP monitoring
  • Juniper flow monitoring (J-Flow)


Advanced Routing Services

  • Circuit cross-connect (CCC), translational cross-connect (TCC)
  • L2/L2 MPLS VPN, pseudo-wires
  • Virtual private LAN service (VPLS), next-generation multicast
  • MPLS traffic engineering and MPLS fast re-route


Management, Automation, Logging, and Reporting

  • SSH, Telnet, SNMP-MIBs, Traps
  • Smart image download
  • Juniper CLI, Web UI, NetCONF, XML APIs, RMON
  • Juniper Networks Security Director Cloud
  • Python
  • Junos OS events, commit and OP scripts
  • Application and bandwidth usage reporting
  • Debug and troubleshooting tools


Hardware Specifications

Table 3. SRX2300 Hardware Specifications
Onboard ports8 x 1 GbE/2.5 GbE/5 GbE/10 GbE BASE-T
Onboard small form-factor pluggable plus (SFP+) transceiver ports8 x 1 GbE/10 GbE SFP+
4 x 1 GbE/10 GbE/25 GbE SFP28
2 x 40 GbE/100 GbE QSFP28
Out-of-Band (OOB) management ports1 x 1 GbE (RJ-45)
Dedicated high availability (HA) ports2 x 1 GbE SFP
Console1 (RJ-45)
USB 3.0 ports (Type A)1
Storage (SSD)1 x 120 GB (primary), 1 x 120 GB (secondary)
Dimensions and Power
Form factor1U
Size (W x H x D)17.28 x 1.74 x 18.20 in
(43.89 x 4.42 x 46.23 cm)
Weight (device and PSU)Chassis with two AC power supplies: 19 lb (8.6 kg)
Chassis with two DC power supplies: 19.3 lb (8.8 kg)
Chassis with package for shipping: 35.6 lb (16.2 kg)
Redundant PSU1+1
Power supply2 x 450 W AC PSU redundant
2 x 650 W DC PSU redundant
Average heat dissipation1 x DC PSU (40V): 653.4 BTU/h
2 x DC PSU (40V): 737 BTU/h
1 x AC PSU (110V): 682 BTU/h
1 x AC PSU (230V): 662 BTU/h
2 x AC PSU (110V): 703 BTU/h
2 x AC PSU (230V): 682 BTU/h
Environment and Regulatory Compliance
Airflow/coolingFront to back
Operating temperature32° to 104° F (0° to 40° C at 6000 ft altitude)
Operating humidity5% to 90% non-condensing
Meantime between failures (MTBF)Over 100,000 hours (12 years)
FCC classificationClass A
RoHS complianceRoHS 6
Performance and Scale
Firewall throughput3 (IMIX)28 Gbps
Firewall throughput3 (1518B)39 Gbps
IPsec VPN throughput3 (IMIX)18 Gbps
IPsec VPN throughput3 (1400B)36 Gbps
Application security performance (TPS#/CPS**)36 Gbps/23 Gbps
Next-generation firewall (TPS#/CPS**)435 Gbps/12 Gbps
Secure Web Access Firewall (CPS**)511 Gbps
Advanced Threat (CPS**)66 Gbps
Connections per second (64B)450,000
SSL connections per second8,000
Maximum concurrent sessions (IPv4 or IPv6)5 Million
Route table size (RIB/FIB) (IPv4)2 Million/1.2 Million
IPsec VPN tunnels4,000

3Throughput numbers based on UDP packets and RFC2544 test methodology
4Next-generation firewall performance is measured with firewall, application security, and IPS enabled
5Secure Web Access firewall performance is measured with firewall, application security, IPS, SecIntel, and URL filtering enabled
6Advanced Threat performance is measured with Firewall, Application Security, IPS, SecIntel, URL Filtering and Malware Protection enabled
#TPS Method: Throughput performance of average HTTP sessions
**CPS Method: Short-lived sessions


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