Cisco 921 Gigabit Ethernet security router C921-4P

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Cisco 921 Gigabit Ethernet security router C921-4P descriptions

Cisco 921 Gigabit Ethernet security router C921-4P is a high-performance, small-form-factor router designed for small businesses, branch offices, and retail environments. It is part of the Cisco 900 Series ISR (Integrated Services Routers) family, which provides secure, reliable, and manageable connectivity with a range of features to support various deployment scenarios.

Key features of the Cisco C921-4P router include:

Performance: It offers high-performance Gigabit Ethernet connectivity, ensuring fast data transfer and efficient network operation.
Ports: The C921-4P comes with four Gigabit Ethernet LAN ports (10/100/1000 Mbps), one Gigabit Ethernet WAN port, and one USB 3.0 port for storage or additional connectivity options.
Security: The router includes advanced security features like Cisco IOS Firewall, VPN support (including site-to-site and remote access), intrusion prevention, and content filtering. These features help protect your network from unauthorized access and keep your data secure.
Quality of Service (QoS): The C921-4P supports QoS features like traffic shaping, prioritization, and congestion management, ensuring optimal performance for critical applications and services.
Manageability: It supports various management options, including command-line interface (CLI), web-based GUI (Cisco Configuration Professional), and SNMP, making it easy for network administrators to monitor, configure, and troubleshoot the router.
Software: The C921-4P runs Cisco IOS XE Software, a modern, scalable, and flexible operating system designed for enterprise-class routing, switching, and security.
Cloud-based management: The router supports Cisco FindIT Network Manager, a cloud-based network management platform that simplifies the deployment and monitoring of Cisco 900 Series ISR routers.
Small form factor: The C921-4P has a compact design, making it an ideal choice for space-constrained environments.

Cisco C921-4P Gigabit Ethernet Security Router provides robust performance, advanced security, and ease of management in a compact form factor, making it an excellent choice for small businesses and branch offices.

C921-4P Specification

C921-4P Specification
WAN interfaces	2 ports Gigabit Ethernet (GE)
LAN interfaces	4-port GE managed switch
Integrated USB 2.0	Yes
Maximum crypto throughput (bit-rate policed)	150 Mbps
Cisco IOS Software
IP and IP services	● Routing Information Protocol Versions 1 and 2 (RIPv1 and RIPv2)● Generic Routing Encapsulation (GRE) and Multipoint GRE (MGRE) ● Cisco Express Forwarding ● Standard 802.1d Spanning Tree Protocol ● Layer 2 Tunneling Protocol (L2TP) ● L2TP Version 3 (L2TPv3) ● Network Address Translation (NAT) ● Dynamic Host Configuration Protocol (DHCP) server, relay, and client ● Dynamic DNS ● DNS Proxy ● DNS Spoofing ● Access Control Lists (ACLs) ● IPv4 and IPv6 multicast ● Open Shortest Path First (OSPF) ● Border Gateway Protocol (BGP) ● Performance Routing (PfR) ● Enhanced Interior Gateway Routing Protocol (EIGRP) ● Virtual Route Forwarding (VRF) Lite ● Next Hop Resolution Protocol (NHRP) ● Bidirectional Forwarding Detection (BFD) ● Web Cache Communication Protocol (WCCP)
xDSL	● True Multimode VDSL2 and ADSL2+ over Annex A, B, J, and M, including traditional G.DMT and T1.413● World-class interoperability with industry-standard DSL Access Multiplexer (DSLAM) chipsets ● Highest field reliability with Impulse Noise Protection (INP) over Repetitive Electrical Impulse Noise (REIN) and single isolated impulse noise (SHINE), extended INP delay, G.INP, physical layer retransmission, Seamless Rate Adaptation (SRA), and Bitswap ● VDSL2 Persistent Storage Device (PSD) profiles up to 17a/b with support for spectral shaping ● VDSL2 vectoring to offer blazing fiber speeds over copper ● Remote management with TR069 and CWMP ● Investment protection with Gigabit Ethernet
Switch features	● Auto Media Device In/Media Device Cross Over (MDI-MDX)● 25 802.1Q VLANs ● MAC filtering ● Switched Port Analyzer (SPAN) ● Storm control ● Smart ports ● Secure MAC address ● Internet Group Management Protocol Version 3 (IGMPv3) snooping ● 802.1X
Security features	Secure connectivity:● Secure Sockets Layer (SSL) VPN for secure remote access ● Hardware-accelerated DES, 3DES, AES 128, AES 192, and AES 256 ● Public-Key-Infrastructure (PKI) support ● 50 IPsec tunnels ● Cisco Easy VPN client and server ● NAT transparency ● Dynamic Multipoint VPN (DMVPN) ● Tunnel-less Group Encrypted Transport VPN (GET VPN) ● VRF-aware IPsec ● IPsec over IPv6 ● Adaptive control technology ● Session Initiation Protocol (SIP) application-layer gateway ● Cisco IOS Firewall: ◦ Zone-based policy firewall ◦ VRF-aware stateful inspection routing firewall ◦ Stateful inspection transparent firewall ● Advanced application inspection and control ● HTTPS, FTP, and Telnet Authentication Proxy ● Dynamic and static port security ● Firewall stateful failover ● VRF-aware firewall ● Cisco IOS Software black and white lists ● Integrated threat control: ◦ Intrusion Prevention System (IPS) ● Control plane policing ● Flexible packet matching ● Network foundation protection
Quality of Service (QoS)	● Low-Latency Queuing (LLQ)● Weighted Fair Queuing (WFQ) ● Class-Based WFQ (CBWFQ) ● Class-Based Traffic Shaping (CBTS) ● Class-Based Traffic Policing (CBTP) ● Policy-Based Routing (PBR) ● Class-Based QoS MIB ● Class of Service (CoS)-to-Differentiated Services Code Point (DSCP) mapping ● Class-Based Weighted Random Early Detection (CBWRED) ● Network-Based Application Recognition (NBAR) ● Link Fragmentation and Interleaving (LFI) ● Resource Reservation Protocol (RSVP) ● Real-Time Transport Protocol (RTP) header compression (cRTP) ● Differentiated Services (DiffServ) ● QoS preclassify and prefragmentation ● Hierarchical QoS (HQoS)
Management	● Cisco Configuration Professional● Cisco Configuration Express ● Cisco Configuration Engine support ● Cisco AutoInstall ● Cisco IP Service-Level Agreement (IP SLA) ● Cisco IOS Embedded Event Manager (EEM) ● CiscoWorks ● Cisco Security Manager ● Telnet, Simple Network Management Protocol Version 3 (SNMPv3), Secure Shell (SSH) Protocol, Command-Line Interface (CLI), and HTTP management ● RADIUS and TACACS+ ● Cisco Next Generation Plug-and-Play (NG PnP) Protocol
High availability	● Virtual Router Redundancy Protocol (VRRP) (RFC 2338)● HSRP ● MHSRP
Metro Ethernet	● Ethernet OA&M● Ethernet Local Management Interface (E-LMI) ● IP SLA for Ethernet
IPv6	● IPv6 addressing architecture● IPv6 name resolution ● IPv6 statistics ● IPv6 translation: Transport packets between IPv6-only and IPv4-only endpoints (NAT-Protocol Translation) ● Internet Control Message Protocol Version 6 (ICMPv6) ● IPv6 DHCP ● OSPFv3 ● BGP4+ ● IPv6 Path Maximum Transmission Unit (PMTU) ● IPv6 neighbor discovery ● IPv6 stateless address autoconfiguration (SLAAC) ● IPv6 multicast routing
Application visibility and control	● NBAR2● Flexible NetFlow (FNF) ● Performance Agent
Number of recommended users	● 50
Default and maximum DRAM	● Default 1 GB
Default and maximum flash memory	● 2 GB on all Cisco 900 Series ISR models; not upgradable
WAN	● Refer to Table 2 for details
LAN switch	● Refer to Table 2 for details
Separate console ports	● RJ-45
USB 2.0	● One USB 2.0 Type A port
Physical dimensions	H x W x D = 1.70 x 9.0 x 9.5 in. (4.32 x 22.86 x 24.13 cm) (includes rubber feet)
Power supply	Power specifications:● AC input voltage: Universal 100 to 240 VAC ● Frequency: 50 to 60 Hz ● Internal power supply (C921-4P and C931-4P only)
Approvals and compliance	Safety:● IEC 60950-1 ● UL 60950-1 ● CAN/CSA C22.2 No. 60950-1 ● EN 60950-1 ● AS/NZS 60950.1 ● Class I Equipment (C921-4P and C931-4P only) ● Class III Equipment (C927-4P, C927-4PM, and C926-4P only) Emissions: ● 47 CFR Part 15: 2006 ◦ CISPR22: Edition 6.0: 2008 ◦ CNS13438: 2006 ◦ EN 300 386 V1.6.1 ◦ EN 55032 ◦ EN61000-3-2: 2006 [+ amd 1 & 2] ◦ EN61000-3-3: 2008 ◦ ICES-003 Issue 5: 2012 ◦ KN 22: 2009 ● TCVN 7189: 2009 ● VCCI: V-3/2012.04 Immunity: ● CISPR24: 2010 [+ amd 1 & 2] ◦ EN300386: V1.6.1 ◦ EN55024: 2010 ◦ EN61000-6-1: 2007 ◦ KN24: 2011 ◦ TCVN 7317:2003
Environmental operating range	● Nonoperating temperature: -40° to 158°F (-40° to 70°C)● Nonoperating humidity: 5% to 95% relative humidity (noncondensing) ● Nonoperating altitude: 0 to 15,000 ft (0 to 4570 m) ● Operating temperature: 0° to 50°C (de-rate 1°C per 1000-ft increase in altitude) ● Operating humidity: 5% to 95% relative humidity (noncondensing) ● Operating altitude: 0 to 10,000 ft (0 to 3000 m)