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C881-K9
Cisco 881 Ethernet Security Router, SSL, VPN, Firewall, 4 sw...
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Overview of C881-K9
C881-K9 is a fixed-architecture integrated services router engineered for small office and branch deployments, featuring dual power options including an AC power supply and a streamlined form factor for efficient WAN/LAN connectivity. It integrates four 10/100 LAN ports and one 10/100 WAN port with built-in firewall and NAT, while delivering enhanced VPN support through IPSec and SSL VPN protocols for secure remote connectivity.
C881-K9’s design incorporates integrated services such as voice capabilities, high-performance routing, and robust security measures, complemented by modular expansion via an EHWIC slot. It offers reliable throughput at approximately 0.05 Gbps, supports features like QoS and syslog for enhanced performance and redundancy, and is ideally suited for small business and branch office environments requiring secure, managed routing with comprehensive integrated services.
C881-K9 price is $169.00, a 79.7% saving from the Cisco list price of $832.00. C881-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C881-K9 for additional pricing. Browse the full Router Isr 800 series or explore all Cisco products.
A national retail chain deploys the C881-K9-Cisco 881 Ethernet Security Router, SSL, VPN, Firewall, 4 switching ports at each branch to establish an encrypted site-to-site VPN back to HQ. Four integrated switch ports connect point-of-sale terminals, inventory systems, and CCTV. Benefit: real-time inventory synchronization, PCI compliance, and centralized security management.
A small professional services firm uses the C881-K9-Cisco 881 Ethernet Security Router, SSL, VPN, Firewall, 4 switching ports to provide SSL VPN access for 20 remote employees. The four LAN ports support VoIP phones, printers, and desktop workstations. Benefit: secure, low-latency access to on-premises applications, simplified endpoint management, and business-grade firewall protection.
A boutique hotel implements the C881-K9-Cisco 881 Ethernet Security Router, SSL, VPN, Firewall, 4 switching ports to segment guest Wi-Fi, employee LAN, and IoT devices using VLANs on its four switch ports. SSL VPN protects administrative access, while the integrated firewall isolates traffic. Benefit: enhanced guest privacy, reduced attack surface, and regulatory compliance.
To get the detailed certification, please go to the Compliance Center.
 C881-K9 |  CISCO878-SEC-K9 |  CISCO851W-G-A-K9 |  CISCO888W-GN-E-K9 |  CISCO887W-GN-E-K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | DSL | DSL / Cable / N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE / RoHS | FCC / CE | IEEE 802.3, IEEE 802.11b/g | IEEE 802.3, IEEE 802.11, FCC, CE | IEEE 802.3, IEEE 802.11b/g/n |
| Connectivity Type | Wired | Wired | Wired / Wireless | Wired / Wireless / Ethernet | Wired / Wireless / Ethernet |
| Depth | 7.50 inches | N/A | N/A | 18.5 inches | 7.48 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | FCC Part 15, EN 55032 |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC | N/A | N/A | NIM / SFP+ | EHWIC |
| Features | VPN / VoIP / IPv6 Compatible / Firewall / Syslog | VPN / IPv6 Compatible / Firewall | VPN, Firewall, Integrated Wireless, VoIP | VPN, VoIP, IPv6 Compatible, Firewall | VPN / VoIP / IPv6 Compatible / Firewall / Syslog |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 256 MB | 128 MB | 256 MB | 256 MB |
| Form Factor | Desktop | Desktop | Desktop | Rack-mount | Desktop |
| Height | 1.75 inches | N/A | N/A | 1.7 inches | 1.73 inches |
| High Availability Support | Not Supported | Not Supported | Supported | Supported | Supported |
| Integrated Services | Voice | Voice | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice / Video |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 / SFP | RJ-45 |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 256 MB | 512 MB | 512 MB |
| Modular Slots Available | 1 Slot | N/A | N/A | 1 Slot | 1 Slot |
| Network Protocols | IPv4 / IPv6 | IPv4 / IPv6 / NAT | TCP/IP, UDP, ICMP | TCP/IP, UDP, ICMP, SNMP | OSPF / EIGRP / BGP / RIP / Static Routing |
| Power | 30 W | 18W | 65 Watt | 65 Watt | 25 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply / DC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant |
| Product Name | Cisco 881 Integrated Services Router | CISCO878-SEC-K9 Secure Router | CISCO851W-G-A-K9 | CISCO888W-GN-E-K9 | CISCO887W-GN-E-K9 |
| Product Type | Enterprise Router | Integrated Services Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH / Telnet / SNMP | HTTP / HTTPS / SNMP / Telnet / SSH | Telnet, SSH, SNMP | SSH, Telnet, SNMP | SNMP / Telnet / SSH |
| Routing Protocols | OSPF / EIGRP / RIP / Static Routing | OSPF / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | UL/cUL, IEC 60950-1 |
| Speed/Capacity | N/A | Fast Ethernet | 100 Mbps | Gigabit | Gigabit |
| Stacking Capability | No | No | No | Yes | No |
| Telecom | N/A | N/A | N/A | N/A | FCC Part 68 |
| Throughput Capacity | 0.05 Gbps | 50 Mbps | 100 Mbps | 1 Gbps | 0.1 Gbps |
| Use Case | Small Business | Small Business / Branch Office | Enterprise / Small Business | Enterprise / Small Business | Small Business |
| VPN Support | IPSec / SSL VPN / N/A | IPSec / DMVPN / FlexVPN | IPSec | IPSec / SSL VPN | IPSec / DMVPN / N/A |
| WAN Configuration | WAN | WAN | WAN | Dual WAN | Dual WAN |
| WAN Ports | 1 WAN | 1 WAN | 1 WAN | 2 WAN | 1 WAN |
| Weight | 5 lbs | N/A | N/A | 11.88 lbs | 4.3 lbs |
| Wi-Fi Standard | N/A | N/A | WiFi 4 (802.11g) | WiFi 4 | WiFi 4 |
| Width | 8.70 inches | N/A | N/A | 17.2 inches | 9.02 inches |
| Wireless Support | No | No | Yes | Yes | Yes |
The Cisco 881-K9 router offers solid performance and excellent security features. It's perfect for small businesses needing secure connectivity with SSL, VPN, and firewall support.
Reliable and secure. Cisco 881-K9 provides VPN, firewall, and SSL support, making it ideal for protecting our small business network while maintaining fast connectivity.
Cisco 881-K9 is a great router for small businesses. The robust security features, including VPN and firewall, provide peace of mind for remote work and secure connections.
The Cisco 881-K9 router delivers excellent performance and security. SSL and VPN features ensure secure remote access, making it an essential tool for our business network.
Cisco 881-K9 is perfect for small office setups. It provides solid security with VPN and SSL support, ensuring our network remains safe and reliable.
The Cisco 881 Ethernet Security Router is a compact branch device offering integrated SSL/IPSec VPN, stateful firewall, and a 4-port Ethernet switch for secure connectivity.
It features one 10/100 WAN port, four 10/100 LAN ports, one 10/100 DMZ port, up to 25 Mbps VPN throughput, and integrated 3DES/AES hardware encryption.
Yes, the Cisco 881 supports up to 4 SSL VPN tunnels with strong multi-factor authentication and AES encryption for secure remote access.
Yes, the Cisco 881 supports up to 10 IPSec VPN tunnels using hardware-accelerated 3DES and AES encryption for high-performance site-to-site connectivity.