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CISCO1801/K9
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ADSL/POTS Router with Firewall/IDS and IPSEC 3DES
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Name:
CISCO1801/K9
- Description:
- ADSL/POTS Router with Firewall/IDS and IPSEC 3DES
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 882658117084
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 90
- List Price:
$1,495.00
- Price:
$137.0090.8% off
Quantity:
1
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CISCO1801/K9 Overview
CISCO1801/K9 is a fixed enterprise router engineered for branch office connectivity and integration of multiple services, offering a robust architecture with flexible power options through an AC power supply and dual WAN configurations. It delivers secure connectivity with integrated VPN features and built-in firewall capabilities while providing high QoS performance for voice, video, and data convergence with modular expansion slots for network interface modules.
Designed for scalability and optimized for diverse use cases in enterprise environments, the device features 10/100 Ethernet interfaces for LAN connectivity, integrated services that support voice and video applications, and reliable throughput capacity with essential redundancy features. Its performance and modular capabilities make it ideal for secure branch office deployments, demanding VPN applications, and comprehensive remote management in wired networks.
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CISCO1801/K9 Specifications
- Product Type
- Enterprise Router
- Brand
- Cisco
- VPN Support
- IPSec / SSL VPN
- Power Source
- AC Power Supply
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Architecture
- Fixed
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100
- Connectivity Type
- Wired
- Network Protocols
- IPv4 / IPv6
- Remote Management
- CLI / SSH / Telnet / SNMP
- Compliance Standards
- FCC / CE
- Wireless Support
- No
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN / Voice / Firewall / IPv6 Compatible
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Rack-mount
- Integrated Services
- Voice / Video
- High Availability Support
- Not Supported
- Throughput Capacity
- 0.075
- 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
- 256 MB
- Flash Memory
- 128 MB
- Interface Ports
- RJ-45
- Power
- 48 W
- Device Type
- Router
- Product Name
- Cisco 1801 Integrated Services Router
- Height
- 1.75 in
- Width
- 17 in
- Depth
- 14 in
- Weight
- 12 lbs
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Product Comparison Table 
| CISCO1801/K9 |  C1861W-SRST-B/K9 |  CISCO1802 |  CISCO1801 |  CISCO1841-HSEC/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Modular |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE | FCC, CE, UL | IEEE 802.3, 802.3u, 802.3ab | FCC / CE | FCC / CE |
| Connectivity Type | Wired | Wired / Wireless | Wired | Wired | Wired |
| Device Type | Router | Router | Router | Router | Router |
| Ethernet Technology | 10/100 | 10/100 | 10/100/1000 | 10/100 | 10/100 |
| Expansion Slots | NIM | NIM | NIM, EHWIC | EHWIC | EHWIC |
| Features | VPN / Voice / Firewall / IPv6 Compatible | VPN, Firewall, Integrated Services, IPv6 Compatible | VPN, VoIP, IPv6 Compatible, Firewall, MPLS | VPN / VoIP / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 256 MB | 256 MB | 128 MB | 32 MB |
| Form Factor | Rack-mount | Desktop | Rack-mount | Rack-mount | Rack-mount |
| High Availability Support | Not Supported | Supported | Supported | Not Supported | Supported |
| Integrated Services | Voice / Video | Voice, Video | Voice, Video, WAN Optimization | Voice / Video | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 | RJ-45, Combo Ports | RJ-45 | RJ-45 |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 512 MB | 256 MB | 128 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IPv4, IPv6 | IP, TCP, UDP, HTTP, SNMP | IPv4 / IPv6 | IP / IPv6 |
| Power | 48 W | 40W | 150W | 85 Watt | 65 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply with Redundant Option | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1801 Integrated Services Router | Cisco 1861 Wireless Services Router | Cisco 1802 Integrated Services Router | Cisco 1801 Integrated Services Router | CISCO1841-HSEC/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI / SSH / Telnet / SNMP | SSH, Telnet, SNMP | Telnet, SSH, SNMP, HTTPS | CLI / SNMP | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Stacking Capability | No | No | Yes | No | No |
| Throughput Capacity | 0.075 | 0.085 Gbps | 1 Gbps | 0.027 Gbps | 0.033 Gbps |
| Use Case | Enterprise | Business / Small Business | Enterprise / Business | Small Business / Enterprise | Business / Enterprise |
| VPN Support | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN / GRE | IPSec / SSL VPN | IPSec | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Wireless Support | No | Yes | No | No | No |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
S
Sophia Hughes
4
ADSL/POTS router with firewall and IDS. Reliable IPSEC 3DES performance keeps our office network secure.
E
Ethan Parker
5
Cisco 1801 provides stable routing and strong security. Easy to configure for small business use.
I
Isabella Reed
5
Handles daily traffic efficiently. Firewall and IPSEC keep our connections protected.
M
Mason Gray
4
Durable and dependable router. Maintains stable connectivity and secure communications for our SOHO setup.
A
Ava Coleman
4
Reliable ADSL/Firewall solution. Cisco 1801 ensures smooth and secure office network operations.
Questions & Answers
What is the Cisco 1801/K9 ADSL/POTS Router?
The Cisco 1801/K9 is an integrated ADSL/POTS router designed for small offices and remote sites, featuring built-in firewall, intrusion detection, and hardware-accelerated IPsec 3DES VPN to secure and optimize WAN connectivity.
Which ADSL standards does the Cisco 1801/K9 support?
The Cisco 1801/K9 supports ADSL (ITU G.992.1), ADSL2 (G.992.3), and ADSL2+ (G.992.5) standards, ensuring broad compatibility with most service providers and flexible deployment in DSL networks.
How does the integrated firewall on the Cisco 1801/K9 work?
The Cisco 1801/K9 includes a stateful firewall that monitors and filters inbound and outbound traffic based on configurable access control lists (ACLs), providing robust perimeter security for branch and small-office networks.
What intrusion detection capabilities are included?
Built-in Cisco IOS Intrusion Detection System (IDS) inspects network traffic in real time, detects anomalies and known threats, and can trigger ACL or syslog alerts to proactively protect against intrusions.
What VPN encryption does the Cisco 1801/K9 support?
The device provides hardware-accelerated IPsec with 3DES encryption and SHA-1 authentication, supporting secure site-to-site and remote-access VPN tunnels with up to 20 concurrent sessions.
What is the typical throughput of the Cisco 1801/K9 router?
With hardware-accelerated encryption disabled, the Cisco 1801/K9 delivers up to 8 Mbps routing throughput. With IPsec 3DES enabled, expect approximately 4–6 Mbps of VPN performance.
How many Ethernet interfaces are available?
The Cisco 1801/K9 features two 10/100 Mbps Ethernet LAN ports, configurable as switched or separate broadcast domains, plus a single ADSL WAN interface for DSL connectivity.
Does the Cisco 1801/K9 support Quality of Service (QoS)?
Yes. The router offers Cisco IOS QoS features, including traffic classification, queuing, policing, and shaping to prioritize voice, video, and critical data over ADSL connections.
Which management and monitoring tools are supported?
The Cisco 1801/K9 can be managed via CLI (SSH/Telnet), SNMP v2/v3, Cisco Configuration Professional (CCP), and CiscoWorks for real-time monitoring, configuration backups, and performance reporting.
Can the router integrate with existing Cisco networks?
Absolutely. The Cisco 1801/K9 runs Cisco IOS and supports standard routing protocols (EIGRP, OSPF, BGP), MPLS L3 VPN, and compatibility with Cisco ASA for cohesive network design.
What power and environmental specifications apply?
The Cisco 1801/K9 uses a 12 VDC, 1.5 A external power adapter, consumes less than 10 W, operates in 0–40°C ambient temperature, and meets standard safety and emission certifications.
How many users can the Cisco 1801/K9 support?
Designed for small offices, the Cisco 1801/K9 can handle up to 50 simultaneous users, combining firewall, VPN, and routing services without compromising performance.
What are the typical use cases for the Cisco 1801/K9?
Ideal for branch offices, retail sites, teleworkers, and small-office/home-office deployments where secure DSL connectivity, integrated firewall/IDS, and site-to-site VPN are required.
Is the Cisco 1801/K9 eligible for Cisco Smart Net Total Care?
Yes. The Cisco 1801/K9 is covered under Cisco Smart Net Total Care for 24×7 hardware replacement, software updates, TAC support, and access to the Cisco online knowledge base.
How do I configure an IPsec 3DES VPN on the Cisco 1801/K9?
Use the Cisco CLI or Configuration Professional wizard to define ISAKMP policies, IPsec transform sets with 3DES/SHA1, crypto maps, and apply them to the ADSL interface for secure tunnel setup.
What warranty and support options are available?
Cisco offers a limited 90-day hardware warranty for the 1801/K9. Extended coverage, advanced replacement, and technical support are available via Smart Net Total Care service contracts.