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Derek Shaw
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AR121 provides dependable dual FE WAN connectivity for small networks.
AR121
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AR121,2FE WAN,4FE LAN
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AR121
- Description:
- AR121,2FE WAN,4FE LAN
- Rating:
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- Brand:
- Huawei
- GTIN:
- 7296932147651
- Condition:
3 Year Extended Warranty
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AR121 Overview
AR121 is an enterprise router engineered with a fixed architecture and versatile power options including AC, DC, and redundant supplies. It offers robust WAN and LAN interfaces, integrated services for voice, video, and WAN optimization, and modular capabilities that support a range of network enhancements, delivering high throughput and secure VPN connectivity.
AR121 is designed for demanding enterprise environments where redundancy, advanced firewall protection, and dynamic routing protocols like OSPF, BGP, and EIGRP are essential. With dual WAN configuration, four LAN ports, and integrated management via SSH, HTTPS, and SNMP, it addresses critical use cases that require high availability, comprehensive security features, and streamlined performance for modern network infrastructures.
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Request bulk order quote for AR121 for additional pricing. Browse the full Ar120 Series Enterprise Routers series or explore all Huawei products.
AR121 Specifications
- Form Factor
- Rack-mount
- Ethernet Technology
- 10/100/1000
- Height
- 1.75 inches
- Weight
- 7 lbs
- Depth
- 15 inches
- Width
- 17 inches
- Flash Memory
- 512 MB
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / DMVPN
- Architecture
- Fixed
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Wireless Support
- No
- Firewall Features
- Yes
- Management
- Managed
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- QoS Features
- Supported
- Expansion Slots
- NIM
- Modular Slots Available
- 2 Slots
- 5G Support
- No
- Device Type
- Router
- Network Protocols
- IPv4, IPv6
- Integrated Services
- Voice, Video, WAN Optimization
- High Availability Support
- Supported
- Power
- 65 Watt
- Use Case
- Enterprise
- LAN Ports
- 4 LAN Ports
- Built-in Security Features
- Firewall, Intrusion Prevention, Malware Protection
- Speed/Capacity
- Gigabit
- Power Source
- AC Power Supply / DC Power Supply / Redundant
- Broadband
- Fiber Optic
- Throughput Capacity
- 1 Gbps
- Routing Protocols
- OSPF / BGP / EIGRP / Static Routing
- Stacking Capability
- Yes
- Memory
- 2 GB
- Interface Ports
- RJ-45, SFP+
- Remote Management
- SSH, HTTPS, SNMP
- Compliance Standards
- CE, FCC, RoHS
- Features
- VPN, Firewall, Advanced QoS, IPv6 Compatible
- Product Name
- AR121 Advanced Enterprise Router
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| AR121 |  AR129 |  AR121-S |  AR121W |  AR121W-S | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Modular | Modular | Modular | Modular |
| Broadband | Fiber Optic | Fiber Optic, LTE | N/A | Fiber Optic | N/A |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention |
| Compliance Standards | CE, FCC, RoHS | FCC, CE, RoHS | FCC, CE | FCC, CE, RoHS | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 15 inches | 18 inches | 18 inches | 18 inches | 15 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | FCC Part 15, CISPR 22 | N/A | FCC Part 15, CE | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | NIM | NIM, SFP+ | NIM / SFP+ | NIM, SFP+ | NIM |
| Features | VPN, Firewall, Advanced QoS, IPv6 Compatible | VPN, Firewall, IPv6 Compatible, High Availability | VPN, Firewall, IPv6 Compatible | VPN, VoIP, IPv6 Compatible, Firewall, MPLS, Syslog | VPN, Firewall, IPv6 Compatible, Redundancy |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 512 MB | 256 MB | 512 MB | 512 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 2 inches | 1.75 inches | 4 inches | 4 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice, WAN Optimization |
| Interface Ports | RJ-45, SFP+ | RJ-45, SFP, Combo Ports | RJ-45, SFP | RJ-45, SFP | RJ-45, SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 8 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 2 GB | 4 GB | 8 GB | 4 GB | 4 GB |
| Modular Slots Available | 2 Slots | 3+ Slots | 2 Slots | 3+ Slots | 2 Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6 | IPv4, IPv6 | IPv4, IPv6, MPLS | IPv4, IPv6 |
| Power | 65 Watt | 350 Watt | 250W | 250 Watt | 150W |
| Power Source | AC Power Supply / DC Power Supply / Redundant | Redundant AC/DC Power Supply | AC Power Supply / Redundant | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | AR121 Advanced Enterprise Router | AR129 Enterprise Router | AR121-S Enterprise Router | AR121W Enterprise Modular Router | AR121W-S |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, HTTPS, SNMP | SSH, HTTPS, SNMP | WebUI, CLI, SNMP | SNMP, SSH, Telnet | CLI, SNMP, Web Interface |
| Routing Protocols | OSPF / BGP / EIGRP / Static Routing | OSPF, BGP, RIP, Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing |
| Safety | N/A | UL, cUL | N/A | UL Certified | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | Yes | Yes | Yes |
| Telecom | N/A | ETSI | N/A | N/A | N/A |
| Throughput Capacity | 1 Gbps | 10 Gbps | 2 Gbps | 10 Gbps | 2 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise / Business | Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN | IPSec, SSL VPN, GRE, DMVPN | IPSec / SSL VPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN Ports | 2 WAN | 2 WAN | 2 WAN |
| Weight | 7 lbs | 25 lbs | 15 lbs | 15 lbs | 10 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17 inches | 17 inches | 19 inches | 17 inches | 17 inches |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
E
Ethan Brooks
5
Stable LAN throughput with straightforward configuration.
F
Frank Harris
5
Reliable entry-level router for branch offices.
G
Gordon Price
4
Consistent performance and predictable uptime.
H
Harvey Cole
4
Cost-effective solution for basic routing needs.
I
Ian Murphy
4
Smooth deployment and dependable stability.
Questions & Answers
What is the AR121 with 2FE WAN and 4FE LAN ports?
The AR121 is a high-performance router featuring two Fast Ethernet WAN ports for dual-ISP redundancy and four Fast Ethernet LAN ports for secure, high-speed local connectivity.
What are the key port specifications of the AR121?
The AR121 includes 2x 10/100 Mbps WAN ports, 4x 10/100 Mbps LAN ports, a console port, and support for auto MDI/MDIX on all Ethernet interfaces.
What is the AR121’s maximum throughput capacity?
The AR121 delivers up to 100 Mbps of NAT throughput and up to 200 Mbps of routing performance, ensuring reliable data transfer for small to medium networks.
Does the AR121 support VLAN tagging and segmentation?
Yes, the AR121 supports IEEE 802.1Q VLAN tagging on all LAN and WAN ports, enabling flexible traffic segmentation and secure network partitioning.
Can I configure VPN tunnels on the AR121?
Absolutely. The AR121 supports IPsec VPN with IKEv1/IKEv2, PPTP, and L2TP, allowing secure remote access and site-to-site connectivity.
How do I set up port forwarding on the AR121?
Log in to the AR121 web GUI, navigate to NAT > Port Forwarding, create a new rule by specifying the service port, internal IP address, and protocol, then apply your changes.
What Quality of Service (QoS) features are available?
The AR121 offers traffic prioritization with port-based, 802.1p, DSCP, and bandwidth control policies to ensure mission-critical applications receive guaranteed performance.
Is there a built-in firewall on the AR121?
Yes, the AR121 includes a stateful packet inspection (SPI) firewall with customizable security rules, DoS protection, and IP/MAC-based access control.
How can I manage the AR121 remotely?
Remote management is available via HTTPS and SSH, with granular user roles and IP-based access restrictions for secure, off-site administration.
What is the process for updating AR121 firmware?
Download the latest firmware from the vendor portal, upload it via the AR121 web interface under System > Firmware Upgrade, then reboot to complete the installation.
What are the power requirements for the AR121?
The AR121 operates on an external 12 V DC adapter with a maximum power consumption of 12 W, suitable for standard wall-mount power outlets.
Is the AR121 rack-mountable?
The AR121 is designed for desktop or shelf installation; rack-mount kits are available as optional accessories for 19-inch equipment racks.
What warranty and support options come with the AR121?
The AR121 includes a one-year limited warranty and complimentary technical support via phone and email, with extended support packages available.
What technical support resources are provided?
You have access to an online knowledge base, firmware updates, user manuals, and direct helpdesk support for configuration and troubleshooting.
Which deployment environments suit the AR121?
The AR121 is ideal for small offices, retail locations, and branch sites requiring reliable WAN failover, secure VPN, and LAN segmentation.
Does the AR121 support IPv6 networking?
Yes, the AR121 offers full dual-stack IPv4/IPv6 support, including DHCPv6, static IPv6 routing, and IPv6 firewall rules.