AR121
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AR121

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AR121 Overview

The Huawei AR121 router, part of the AR120 Series, is designed for small office or branch environments, providing efficient connectivity with a compact form factor. It offers 2 Fast Ethernet (FE) WAN ports and 4 FE LAN ports, supporting essential network needs for basic business operations, such as secure data transfer and simple routing functionalities. The AR121 supports a range of IP routing protocols and has embedded firewall capabilities, which makes it suitable for small-scale deployments requiring a balance of functionality and cost-efficiency.

Quick Specs

Product Code Huawei Router – AR121
Memory 256 MB
Flash 256 MB
Service interfaces (standard configuration) WAN interfaces: 1 10/100M auto-sensing Ethernet electrical interface

LAN interfaces: 4 10/100M auto-sensing Ethernet electrical interfaces
Extended slots Not supported
Interface number LAN interfaces: FE0-FE3
Power module type External power adapter
Weight 2.8 kg
Dimensions (W x D x H) 300.0 mm x 216.4 mm x 44.0 mm
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AR121 Specification
WAN speed with services* (IMIX) 50 Mbit/s
Number of recommended users 20
Fixed WAN Ports 1 x FE (the interface LAN 0 of which can be used as one WAN interface)
Fixed Ethernet Switching Ports 4 x FE (can be configured as WAN interfaces)
Fixed Voice Ports —
Integrated 3G —
Wi-Fi —
USB 2.0 Ports 1
Console Ports 1
Memory Size 256 MB
Flash Memory 256 MB
PoE Power —
Maximum Power 24W
Power Supply (AC) 100V to 240V
Frequency 50 Hz/60 Hz
Dimensions (H x W x D) 44.5 mm x 300 mm x 220 mm (1.7 in. x 11.8 in. x 8.66 in.)
Operating Temperature 0°C to 45°C
Relative Humidity 5% to 95% (non-condensing)
Basic Features ARP, PBR, DNS, DHCP, and NAT
WLAN (AC) AP management (AC discovery/AP access/AP management), CAPWAP, WLAN user management, WLAN radio management (802.11a/b/g/n), WLAN QoS (WMM), and WLAN security (WEP/WPA/WPA2/key management)
LAN IEEE 802.1P, IEEE 802.1Q, IEEE 802.3, VLAN management, MAC address management, MSTP, etc.
IPv4 Routing Static route, RIP, and BGP
IPv6 Routing Static route, RIPng, and BGP4+
Multicast IGMP v1/v2/v3, MLD
VPN IPSec VPN, GRE VPN, DSVPN, L2TP VPN, Smart VPN
QoS MQC, priority mapping, traffic policing (CAR), traffic shaping, congestion avoidance (based on IP precedence/DSCP WRED), congestion management (LAN interface: SP/WRR/SP + WRR WAN interface: PQ/CBWFQ), and MQC (traffic classification, traffic behavior, and traffic policy)
Security ACL, firewall, 802.1x authentication, AAA authentication, RADIUS authentication, broadcast storm suppression, ARP security, ICMP attack defense, URPF, blacklist, IP source tracing, PKI, and HTTPS
Management and Maintenance Upgrade management, device management, web-based GUI, SNMP v1/v2c/v3 (AR129CGVW-L only), RMON, NTP, CWMP, Auto-Config, site deployment using USB disk, CLI

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