is a carrier grade equipment for resolving IPv4 addresses lack problem along with maintaining an existing IPv4 infrastructure and smooth migration to IPv6 in the future.


Main functionality

The EcoNAT device supports several types of address translation simultaneously: CGNAT/PAT, Basic NAT, static translation 1:1.

Carrier Grade NAT (CGNAT)

The CGNAT (IETF RFC 6888) which allows to use public IPv4 separately for several users is the main and most modern net-address translation type.

The Full Cone NAT approach is the feature which makes differ between CGNAT and traditional NAT/PAT. This approach provides the maximum transparency for many applications including mobile, P2P, games and others and combines the Endpoint Independent Mapping (EIM) and Endpoint Independent Filtering (EIF) technology usage which allows for any external system to establish user connection via an external TCP/UDP ports what user-initiated source traffic ports are transformed into.

Port Block Allocation (PBA)
The Port Block Allocation (PBA) technology is implemented on EcoNAT devices to decrease an amount of statistic data to be transferred into external system (first of all when integrating with Law Enforcement Support System (LESS)). When using this approach the translation ports are allocated not by one but by continuous blocks. The maximum number of blocks for one user can be configured. In this case only two entries are added to the log for this whole address block — when allocating and when releasing it.

IP pairing
All the user’s connections belonging to the same external pool are translated into the same IP-address for best CGNAT’s transparency.

Basic NAT (BNAT)

In addition to CGNAT the EcoNAT devices support Basic NAT (BNAT)- NAT mode. In this mode a temporary public IPv4 address allocates to user and only addresses are translated (ports remain unchanged). This mode address translating has two variants: transparent one which allows incoming external connections to this address via any ports and closed when external connections can be established only to the ports which user-initiated connection from inside is set on.

Static NAT (1:1)

In addition to CGNAT and BGNAT the EcoNAT devices support static address translation when to each user IP address administratively assigned a constant public IP address. Thus a provider can deliver the «static public IP» service.

Features and benefits

Made in Russia
EcoBras is a Russian product which is approved by Interdepartamental Expert Council’s decision (22.09.2016).

High performance
The performance reaches up to 160 Gb/sec per one rack unit what surpasses foreign analogues.

The new connection establishment speed — 8 million per second with a block logging and 2.5 million per second with an every session logging. Total amount of connections processed is up to 150 million. This is the best result in the industry.

Smart Wire™
The EcoNAT device is transparent for all service type traffic including routing protocols BGP, OSPF, ISIS, STP, LACP, BFD.

Multiple translation type support
The EcoNAT devices support simultaneous operation of various type address translation. It is possible to configure up to 32 simultaneously running NAT-pools of different translation type, public IPv4 address ranges, limits of user connections number and UDP and TCP ports range allocated during translation.

An Access Control Lists (ACL) associated to each pool are criteria for pool selection. ACL are analized in order pool priority. They can incorporate both Source address and Destination address of the IP-packet. This solution can be used in P2P networks with IP-addresses crossing ranges.

The hairpinning mechanism allows users connected via EcoNAT to interact with its the public addresses without sending packets outside.

Application Layer Gateway (ALG)
Modern protocols are designed to work via NAT-systems but some of them (such as FTP, PPTP, RTSP, SIP) require special handling when address translating. In the EcoNAT devices the Application Layer Gateway (ALG) functionality is implemented to support such a handling.

After long inactivity (the duration depends on pool’s configuration and connection status) idle connections will be closed to release ports. Thus an extra address space economy is achieved due to inactive users.

User quotas
The EcoNAT devices allow to configure separately for each pool the ports number and user connections number limits. Combination of this feature, hot reconfiguration and multiple pool support allows the provider to allocate IPv4 resources between corporate and private clients flexibly.

Translation logging
The EcoNAT devices allow to export an information of all translations and user connections at speeds up to 5 million connections per second.

The EcoNAT devices provide an opportunity of network connections and user translations logging (Local_IP, Local_Port, Global_IP, Global_Port, Destination_IP, Destination_Port, Protocol) by Syslog and Netflow v9 standard interfaces. Using Port Block Allocation Mechanism (PBA) the volume of the exported data is reduced tenfold.

The EcoNAT devices are equipped with a convenient command-line interface (CLI) which allows to configure device’s parameters, work with a structured configuration file and monitor the running system parameters. The allocated network control interface (access via SSH to the device) or console port (RS-232 °C) is used to device access. User identification performs locally or by using TACACS+.

An equipment status information transfers via SNMP protocol (v1/v2c). The Syslog и SNMP Trap protocols are used to export the system and event messages.


 EcoNAT 2020 / 2040EcoNAT 4080EcoNAT 4120EcoNAT 4160EcoNAT 5400
Throughput (In+Out) 24 / 34 Gbps* 60 Gbps* 120 Gbps* 160 Gbps* 400 Gbps*
Connection Setups Per Second 2.3M 2.5M 5M 5M 10M
Concurrent Sessions 32 million 40 million 150 million 150 million 375 million
Network Interface          
   10 GE Fiber (SFP+) 2 / 4 8 12 16 -
   1GE Copper 6 - - - -
   100 GE Fiber (QSFP28) - - - - 4
Logging Interface 1 x 10/100/1000BaseT 1 x 10/100/1000BaseT 1 x 10/100/1000BaseT 1 x 10/100/1000BaseT 1 x 10GE SFP+
Management Interface 1 x 10/100/1000BaseT 1 x 10/100/1000BaseT 1 x 10/100/1000BaseT 1 x 10/100/1000BaseT 1 x 10/100/1000BaseT
Console Port RJ45 (RS232C) RJ45 (RS232C) RJ45 (RS232C) RJ45 (RS232C) RJ45 (RS232C)
System Storage CF Industrial SLC CF Industrial SLC CF Industrial SLC CF Industrial SLC CF Industrial SLC
Power Consumption Typical/Max 140W/170W 250W/285W 340W/400W 340W/400W 550W/600W
Power Supply Dual 200W RPS Dual 500W RPS Dual 500W RPS Dual 500W RPS Dual 800W RPS
  100-240 VAC (-36-72 DC) 100-240 VAC (-40-72 DC) 100-240 VAC (-40-72 DC) 100-240 VAC (-40-72 DC) 100-240 VAC (-40-72 DC)
Cooling Fan Standard Fans Hot Swap Smart Fans Hot Swap Smart Fans Hot Swap Smart Fans Hot Swap Smart Fans
Dimensions 430mm x 400mm x 44mm 440mm x 576mm x 44mm 440mm x 576mm x 44mm 440mm x 576mm x 44mm 440mm x 576mm x 88mm
Rack Unit (Mountable) 1U 1U 1U 1U 2U