Eltex ESR series Routers

2026: Presenting ESR-3150

Eltex has updated the ESR line of service routers, replacing previous generations of devices with more powerful and functional solutions. The ESR-3150 router has been launched into mass production - a continuation of the previously released ESR-3250 and ESR-3350 models. The developer announced this on February 5, 2026.

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Фото: Eltex

The equipment is focused on corporate and state networks, as well as industrial sites with increased requirements for reliability and safety.

The increasing load on the networks of enterprises and operators primarily increases the requirements for routing performance and stability of the network infrastructure. ESR-3150 is a planned update of the Eltex line of service routers and a successor to ESR-3100. The model is designed for different industries and application scenarios - from corporate networks to distributed infrastructures with a margin for further load growth, "said Alexander Sidorov, head of the ESR Eltex router service center.

The key advantage of the ESR-3150 is support for DMVPN technology, which is in demand when building secure distributed networks and connecting branches. The router is used in the Hub role.

Active/Standby clustering is implemented to improve failover. Built-in NAT mechanisms provide access to external networks, and RemoteAccess functionality with WireGuard and IPsec support provides secure remote user connection. ESR-3150 is used when building MPLS networks with L2VPN and L3VPN support.

The router also performs firewall functions with support, Firewall Application Control, IPS and Web-filtering based on signatures "." Kaspersky Lab As of version ON 1.40, the ESR-3150 implements the functions of a certification authority for generating and issuing certificates to IPsec network nodes.

The ESR-3150 hardware platform includes 8 combined 1G ports and 4 SFP + 10G ports. Firewall performance reaches 21.69 Gbps, IPsec VPN - 3.35 Gbps (IMIX). AC/DC power is supported with the ability to install two removable power supplies.

2025: ESR-3250 и ESR-3350

The service line routers firewalls Eltex was replenished with two models - ESR-3250 and ESR-3350. The devices are focused on application in large branched infrastructures. They combine the functionality of the border router and. firewall Eltex announced this on October 24, 2025.

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Фото: Eltex

Both models are built on a single hardware platform and differ in performance. With active operation, Firewall ESR-3250 processes traffic at speeds up to 52.6 Gbps (for typical packets of 1518 bytes), ESR-3350 - up to 106.5 Gbps. High speed is achieved due to the optimal distribution of functions between software and hardware: hardware acceleration of traffic processing and dedicated CPU services (up to 23 threads for ESR-3350) make it possible to use resource-intensive security and routing functions without losing performance.

The key advantage of Eltex service routers is support for DMVPN technology, which allows you to flexibly build secure connections between the head office and many branches. Due to the high performance when encrypting traffic (up to 5.3 Gbps for ESR-3250 and up to 14.5 Gbps for IPsec ESR-3350 in IMIX mode), devices can act as DMVPN-HUB.

To organize secure connections for mobile employees and remote sites, support for VPN solutions is implemented: IPsec, WireGuard, OpenVPN.

ESR-3250 and ESR-3350 can be used as edge routers networks with the ability to build private virtual networks and packet processing. This is achieved through support for label data transfer (MPLS). The devices support technologies such as: L2VPN and L3VPN, as well as traffic classification, which is relevant when using dedicated communication channels. provider

ESR series routers are also used as full-fledged firewalls. The equipment uses a set of information security mechanisms without compromising throughput.

The solutions support clustering in Active/Standby (1 + N) and Active/Active (1 + 1) modes, which allows you to build a failover architecture. Reliability is achieved through continuous redundancy and scaling of service states and functions, including synchronization of configuration and software versions.

ESR-3250 and ESR-3350 routers support flexible administration scenarios for both local and remote management. Management can be performed via CLI or using Track Manager. Monitoring is carried out via SNMP, as well as using Track Manager and built-in IP-SLA mechanisms. The equipment can also be controlled through the ECCM system. It is a software solution that automates the processes of configuring, updating the software version and monitoring devices.

2020

Integration with Kaspersky SafeStream II

On November 5, 2020, Eltex presented a joint solution with Kaspersky Lab: IPS on ESR routers using Kaspersky SafeStream II technology. The technology is used to stream traffic scanning at the network gateway level in order to detect the most dangerous and common threats. Read more here.

Installing Dr.Web

Dr.Web for UNIX Internet gateways will be preinstalled on ESR routers. This was announced on September 17, 2020 by Eltex.

Protection of Dr.Web will equip routers with processors on a basis as architecture of MIPS (models from ELTEX of ESR-100, ESR-200, ESR-1000, ESR-1200, ESR-1500, ESR-1511, ESR-1700), and on the basis of ARM64 (ESR-20, ESR-21 and preparing for release of ESR-3100 and ESR-3200).

Designed mainly for working in networks of large corporations and educational institutions, routers from ELTEX with Dr.Web installed will provide reliable filtering of network traffic even before it reaches users' computers.

At the same time, ELTEX equips its devices with the Dr.Web MailD mail processing component, which is a group of modules for receiving and transmitting mail messages and their antivirus and antispam scanning. This component, in turn, can be integrated with the mail server.

Integration within the framework of the Dr.Web and ELTEX cooperation will significantly increase the safe operation of computer networks, excluding routers from the number of devices through which malware can spread over the network and cause significant damage to users.