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Reliable Annex M ADSL performance. Suitable for small offices needing secure internet access.
CISCO1801-M/K9
CISCO1801 Security Router with Annex M
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Name:
CISCO1801-M/K9
- Description:
- CISCO1801 Security Router with Annex M
- Rating:
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- Brand:
- Cisco
- GTIN:
- 882658128011
- Condition:
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CISCO1801-M/K9 Overview
CISCO1801-M/K9 is an integrated services router built on a fixed, modular architecture that delivers secure connectivity while supporting advanced voice, data, and security applications for branch offices. It is engineered with flexible power options, robust WAN and LAN interfaces, and integrated services that enhance real-time communications and network reliability.
Designed for high performance and redundancy, CISCO1801-M/K9 offers comprehensive VPN capabilities and a reliable throughput capacity that meets business-critical requirements. Its modular capabilities, integrated security features, and optimized configuration for both WAN and LAN applications make it ideal for business environments that demand secure, scalable, and cost-effective network solutions.
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CISCO1801-M/K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN
- Power Source
- AC Power Supply
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Broadband
- N/A
- Architecture
- Fixed
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Network Protocols
- IPv4 / IPv6
- Remote Management
- Telnet / SSH / SNMP
- Compliance Standards
- FCC, CE
- Wireless Support
- No
- Speed/Capacity
- N/A
- Firewall Features
- Yes
- Features
- VPN / IPv6 Compatible / Firewall
- Use Case
- Business
- Management
- Managed
- Form Factor
- Desktop
- Integrated Services
- Voice
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 0.03 Gbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall / Intrusion Prevention
- Expansion Slots
- NIM
- Modular Slots Available
- 2 Slots
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 512 MB
- Flash Memory
- 256 MB
- Interface Ports
- RJ-45
- Power
- 46W
- Device Type
- Router
- Product Name
- CISCO1801-M/K9
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
CISCO1801-M/K9 Use Case
Secure Multi-Branch VPN Connectivity with CISCO1801-M/K9 Security Router with Annex M
In a distributed SMB environment, deploy the CISCO1801-M/K9 Security Router with Annex M at each branch to establish AES-256 site-to-site VPN tunnels over ADSL2+ lines. Integrated Cisco IOS Firewall and DMZ support centralize security policies, accelerate encrypted traffic, and ensure consistent, high-performance connectivity—reducing WAN costs by up to 40% while maintaining enterprise-grade data protection.
Business Continuity and Internet Failover Using ADSL2+ Annex M
For small offices that demand uninterrupted Internet access, the CISCO1801-M/K9 Security Router with Annex M leverages dual ADSL2+ ports and enhanced upstream bandwidth to implement real-time failover. With voice and data streams automatically rerouted over the secondary link, organizations achieve 99.9% uptime SLAs, sustain critical cloud application availability, and eliminate service interruptions without manual intervention.
Optimized VoIP and Unified Communications at the Branch
Enable enterprise-grade voice, video conferencing, and QoS at branch offices with the CISCO1801-M/K9 Security Router with Annex M. Leveraging Class-Based QoS and extended upstream rates of Annex M, the router prioritizes SIP traffic and minimizes jitter, ensuring HD voice quality for remote sites. The outcome is a 50% reduction in call drop rates and consistent user experience for unified communications deployments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 CISCO1801-M/K9 |  C1861-4F-VSEC/K9 |  CISCO1841-SHDSL-V3 |  CISCO1841-T1-V2 |  CISCO1841-ADSL2-M | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | DSL | N/A | DSL |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall | Firewall | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention |
| Compliance Standards | FCC, CE | FCC, CE | FCC / CE | FCC / CE | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | NIM | EHWIC | HWIC / NIM | EHWIC | EHWIC |
| Features | VPN / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Integrated Services | VPN / VoIP / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 128 MB | 128 MB | 256 MB |
| Form Factor | Desktop | Desktop | Rack-mount | Desktop | Desktop |
| Height | N/A | N/A | N/A | N/A | N/A |
| High Availability Support | Supported | Supported | Supported | Not Supported | Not Supported |
| Integrated Services | Voice | Voice | Voice / Video | Voice / WAN Optimization | Voice |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 2 LAN Ports | 2 LAN Ports | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 256 MB | 128 MB | 128 MB | 128 MB |
| Modular Slots Available | 2 Slots | 1 Slot | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IPv4, IPv6, NAT, PAT | OSPF / EIGRP / RIP / Static Routing | IPv4 / IPv6 | IP, IPX, AppleTalk |
| Power | 46W | 65 Watt | 65 Watt | 65 Watt | 65 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | CISCO1801-M/K9 | Cisco C1861-4F-VSEC/K9 Integrated Services Router | CISCO1841-SHDSL-V3 | CISCO1841-T1-V2 | CISCO1841-ADSL2-M |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH / SNMP | Telnet, SSH, SNMP | Telnet / SSH | Telnet / SSH / SNMP | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | UL / CE | N/A |
| Speed/Capacity | N/A | N/A | N/A | 10/100 | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.03 Gbps | 0.025 Gbps | 0.03 Gbps | 0.035 Gbps | 0.075 Gbps |
| Use Case | Business | Business | Enterprise | Small Business | Small Business / Enterprise |
| VPN Support | IPSec / SSL VPN | IPSec | IPSec | IPSec VPN | IPSec |
| WAN Configuration | Dual WAN | WAN | WAN | WAN | WAN |
| WAN Ports | 2 WAN | 4 WAN | 1 WAN | 1 WAN | 1 WAN |
| Weight | N/A | N/A | N/A | N/A | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
G
Grace Johnson
4
Cisco 1801 delivers stable routing and good security. Easy to configure and manage.
M
Megan White
5
Consistent uptime and dependable ADSL speeds. Meets basic business networking needs.
D
David Harris
3
Solid security router for SOHO use. Performs well with minimal maintenance.
Z
Zoe Mitchell
4
Good balance of performance and reliability. Works well in small business environments.
Questions & Answers
What is the Cisco 1801-M/K9 Security Router?
The Cisco 1801-M/K9 is an entry-level broadband security router with integrated firewall, VPN, NAT, and Annex M support, designed for small branch offices and teleworkers.
What are the key features of the Cisco 1801-M/K9 router?
It offers stateful firewall, intrusion prevention, IPsec VPN, QoS, two gigabit Ethernet ports, Annex M ADSL2/2+ support, and Cisco IOS Software in a compact chassis.
What is Annex M support in the Cisco 1801-M/K9?
Annex M increases ADSL2/2+ upstream bandwidth to 3.3 Mbps, enhancing upload speeds for voice, video, and data applications.
What throughput performance does the Cisco 1801-M/K9 deliver?
The router delivers up to 25 Mbps aggregate throughput, suitable for small offices and teleworker environments.