Cisco CISCO891-K9 Full Product Description

1. Short Overview

Suffix Breakdown

• CISCO891: Official full PID part number for dual-Ethernet wired base model of Cisco 890 Series enterprise branch ISR
• -K9: Permanent Cisco cryptographic license bundle enabling AES-128/AES-192/AES-256, 3DES, DES, SHA-1/SHA-2, IKEv1/IKEv2 full encryption suite with dedicated hardware crypto offload

Core Differentiators

1. vs wireless variant CISCO891W-AGN-A-K9: CISCO891-K9 omits integrated dual-band 802.11n MIMO WLAN radio; wireless SKUs add built-in wireless access point for on-site mobile client coverage.
2. vs SFP-equipped C891F-K9: C891F-K9 features a Gigabit SFP fiber WAN slot; CISCO891-K9 only has copper GE/FE Ethernet WAN ports without fiber SFP support.
3. vs DSL/leased-line 896/897/898 series: Those models integrate built-in VDSL2/G.SHDSL modems; CISCO891-K9 relies purely on copper Ethernet dual-WAN uplinks.
4. vs lower-tier C881-K9: C881 only has 4 FE LAN ports, smaller memory and limited routing performance; CISCO891-K9 upgrades to 8-port LAN, larger DRAM, richer enterprise routing protocols (EIGRP/BGP), robust metal chassis and stronger multi-service concurrent processing capacity.
5. vs industrial hardened C819HG series: C891-K9 is commercial indoor metal desktop chassis with standard temperature range, not certified for vehicle, railway or extreme outdoor industrial shock/vibration environments.

2. Hardware Interface & Performance Specifications

Dual Selectable Ethernet WAN Interfaces (Automatic Failover Supported)

1. 1 × 10/100/1000BASE-T Gigabit Ethernet WAN port: Primary fiber/cable/metro-Ethernet broadband uplink, auto MDI/MDI-X speed and duplex negotiation
2. 1 × 10/100BASE-T Fast Ethernet WAN port: Secondary backup Ethernet link for redundant wired connectivity

Dedicated Backup Modem Port

LAN Switch Interfaces

• Supports 802.1Q VLAN tagging, port isolation, static MAC security, dedicated DMZ port assignment, broadcast storm control, SPAN port monitoring, Smartport macros and port speed limiting

Management & Auxiliary Ports

1. 1 × Combo RJ45 Console/AUX dual-purpose port: Local CLI configuration via rollover cable; extended analog dial modem for tertiary out-of-band access
2. Dual USB 2.0 Type-A host ports: External flash storage for log archiving, offline configuration backup and EEM script automation extensions
3. Hardware reset button, Kensington security lock slot for physical anti-theft protection

Memory & Storage

• DRAM: 1 GB standard system memory for dozens of concurrent VPN tunnels, dual-stack routing, inline IPS inspection and multi-service traffic forwarding
• Flash storage: 256 MB onboard flash, factory preloaded c890-universalk9-mz Advanced Security IOS image, minimum supported release 15.4(2)T

Front Panel LED Status Indicators

Physical & Power Parameters

• Form factor: All-metal compact desktop chassis, optional wall-mount bracket available
• Dimensions (H × W × D): 44 mm × 438 mm × 305 mm (1.75 × 17.25 × 12 inches) with rubber anti-slip feet
• Weight: ~2.3 kg (5.1 lbs) without power supply
• Standard power supply: 60W external universal AC adapter, input 100–240 VAC 50/60 Hz, output 12 VDC
• Optional separate 80W PoE power supply for powering external IP cameras and access points
• Typical maximum power consumption: 26 W under full GE + FE + all LAN ports active load
• Ingress protection: IP20, only suitable for dry indoor commercial office environments

Environmental Operating Specifications

• Operating temperature: 0°C ~ +40°C (32°F ~ 104°F); performance derates 1.5°C per 1000m altitude above 3000m
• Storage temperature: -20°C ~ +65°C (-4°F ~ 149°F)
• Relative humidity: 10%–85% RH non-condensing
• Maximum operating altitude: 3,000 m (10,000 ft)

3. Hardware Acceleration & Security Engine

• Dedicated onboard crypto co-processor to offload IPsec VPN encryption traffic and eliminate CPU bottlenecks under heavy concurrent site-to-site and remote access tunnel loads
• Permanent K9 crypto license unlocks complete enterprise encryption stack: DES, 3DES, AES-128/192/256, SHA-1/SHA-2 hash algorithms, IKEv1/IKEv2 static site-to-site tunnels, Easy VPN remote access and DMVPN hub-spoke dynamic tunnels

4. Cisco IOS Advanced Security Feature Suite

Dual-WAN Ethernet Routing & Redundancy

• Cisco Express Forwarding (CEF), static routing, RIPv1/v2, OSPF, EIGRP, BGP full enterprise routing stack, complete IPv4/IPv6 dual-stack support
• Automatic policy-based dual-WAN failover logic between GE primary WAN and FE backup Ethernet link
• V.92 modem tertiary backup triggered upon dual Ethernet link simultaneous failure
• Policy-based routing (PBR), NAT/PAT overload, multi-NAT pools for logical LAN endpoint segmentation
• DHCP server/relay/client, DNS proxy, dynamic DNS, Ethernet OAM for metro-Ethernet link health monitoring

Enterprise Security Suite

• Zone-Based Stateful Policy Firewall (ZBFW) for logical separation of internal LAN, DMZ and untrusted internet traffic
• Dynamic Multipoint VPN (DMVPN), Easy VPN Server & Client, IKEv2 IPsec encrypted tunnels for inter-branch corporate encrypted connectivity
• Signature-based inline Intrusion Prevention System (IPS), Cisco ScanSafe cloud URL filtering, deep NBAR application control for HTTP, FTP, IM and mainstream business traffic
• AAA authentication via TACACS+ / RADIUS, 802.1X port authentication available on all 8 managed LAN switch ports
• Secure management only: SSHv2, HTTPS; plaintext Telnet disabled by factory default
• Granular access control lists (ACLs), MAC address port lockdown on Fast Ethernet switch ports

QoS & Business Traffic Optimization

• Weighted Fair Queuing (WFQ), Class-Based WFQ (CBWFQ), Low Latency Queuing (LLQ) for voice, video, SCADA and POS payment real-time traffic prioritization
• NBAR deep application recognition to classify and prioritize business-critical applications over metered broadband links
• RTP/TCP header compression, traffic shaping and policing to control metered broadband bandwidth consumption and avoid overage charges

Remote Management & Automation

• Zero-Touch Provisioning (ZTP) for standardized mass retail and enterprise branch deployments
• Cisco IOS Embedded Event Manager (EEM) scriptable triggers for dual-WAN link failure alerts and automated failover actions
• SNMP v2c/v3, remote syslog logging, IP SLA end-to-end link performance monitoring
• Native compatibility with Cisco Configuration Professional (CCP) web GUI for simplified no-CLI deployment and daily monitoring
• GOLD non-disruptive onboard diagnostics for continuous remote hardware health inspection of Ethernet and modem interfaces

5. Typical Deployment Scenarios

1. Medium Retail Store Dual-Ethernet Secure Gateway with High-Density LAN
   The integrated 8-port LAN switch connects dozens of POS payment terminals, back-office PCs and multi-camera surveillance arrays; GE fiber/Ethernet acts as primary uplink, FE cable serves as backup WAN, with VLAN segmentation isolating sensitive payment systems. Persistent IPsec DMVPN tunnels securely transmit transaction data back to retail corporate data centers, zone firewall + inline IPS jointly mitigate public internet threats.
2. Mission-Critical Medium Regional Satellite Office Redundant Branch Router
   Dual-Ethernet WAN redundancy meets strict enterprise business continuity requirements, supporting EIGRP/BGP integration into corporate core routing domains without external auxiliary switches; V.92 analog modem provides tertiary dial backup for extreme outages.
3. Managed Service Provider Standardized Wired CPE for Business Subscribers
   Uniform hardware platform allows ISPs to provision dual-Ethernet redundant broadband services for small-to-medium enterprise clients, centralized ZTP mass deployment and remote SNMP monitoring for managed security and networking service offerings.
4. Low-Density Unmanned IoT & Surveillance Site Wired Edge Router
   Aggregates large numbers of IP cameras, access control devices and environmental monitoring sensors via 8 FE LAN ports, maintaining persistent encrypted IPsec tunnels to central cloud or on-premises management platforms; dual-Ethernet redundancy ensures uninterrupted data transmission for remote sites.
5. Hybrid Teleworker Small Office Secure VPN Concentrator
   Supports multiple wired employee endpoints and surveillance equipment, dual-Ethernet failover guarantees reliable encrypted Easy VPN backhaul to corporate headquarters, integrated security services protect all internal wired devices from internet malware and unauthorized access.

6. Standard Package Contents of CISCO891-K9 SKU

Separately Sold Optional Accessories

• RJ45 rollover console cable for local CLI configuration
• V.92 analog telephone line cord for modem backup
• Spare replacement PWR-60W-AC power adapter
• USB flash storage drives for log archiving and offline configuration backup
• CAT5e/CAT6 Ethernet patch cords for LAN/GE/FE WAN connections
• Optional 80W PoE power supply for powering external IP cameras and access points

Software Licensing Information

• The-K9suffix includes a permanent built-in cryptographic license; no additional purchase required for IPsec, AES encryption and secure management protocols
• All core routing, dual-WAN failover, firewall, inline IPS, QoS, ZTP and 8-port managed switch features are fully included in the base Advanced Security IOS image; no extra paid feature licenses required
• No wireless AP or cellular modem feature licenses applicable (corresponding hardware omitted from this wired-only SKU)

Short Commercial Catalog Summary for Quotation