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Name:
CISCO1811W-AG-C/K9
- Description:
- Security Router 802.11a+g Compliant with Analog backup
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3 Year Extended Warranty
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Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
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In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
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Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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CISCO1811W-AG-C/K9 Overview
CISCO1811W-AG-C/K9 is a fixed integrated services router engineered for branch office and small-to-medium enterprise environments. It features a robust architecture that combines dual 10/100 Ethernet WAN interfaces and four LAN ports with integrated wireless capabilities, offering flexible power options through an AC power supply. The device supports essential integrated services such as voice and basic security features while allowing for expansion via an EHWIC slot for additional functionalities.
The router provides dedicated VPN support with IPSec encryption and delivers reliable throughput performance for secure remote connectivity. Its design incorporates modular capabilities for service expansion, built-in firewall features for data protection, and practical redundancy measures for consistent performance in business-critical use cases.
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CISCO1811W-AG-C/K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec / SSL VPN / N/A |
| 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 | WiFi 3 |
| Connectivity Type | Wired / Wireless / Ethernet |
| Network Protocols | IPv4 / IPv6 / PPPoE / NAT |
| Remote Management | CLI / SNMP / Web |
| Compliance Standards | FCC / CE / RoHS |
| Wireless Support | Yes |
| Speed/Capacity | N/A |
| Firewall Features | Yes |
| Features | VPN / Firewall / IPv6 Compatible |
| Use Case | Business |
| Management | Managed |
| Form Factor | Desktop |
| Integrated Services | Voice |
| High Availability Support | Not Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | 0.025 Gbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall / Intrusion Prevention |
| Expansion Slots | EHWIC |
| Modular Slots Available | 1 Slot |
| Stacking Capability | No |
| 5G Support | No |
| Memory | 512 MB |
| Flash Memory | 256 MB |
| Interface Ports | RJ-45 |
| Power | 65W |
| Device Type | Router |
| Product Name | Cisco 1811 Wireless Advanced Gateway |
| Height | 1.06 inches |
| Width | 8.50 inches |
| Depth | 9.50 inches |
| Weight | 6.60 lbs |
CISCO1811W-AG-C/K9 Use Case
Secure Retail POS Continuity with Cisco1811W-AG-C/K9 Analog Failover
A national retail chain deploys the CISCO1811W-AG-C/K9-Security Router 802.11a+g at each store to provide encrypted Wi-Fi for staff tablets and POS terminals. In case of primary DSL or cable failure, the built-in analog backup modem automatically dials out to keep credit-card transactions live. Outcome: uninterrupted sales, PCI compliance and zero revenue loss during broadband outages.
Rapid-Deploy Field Office WAN & Wireless for Emergency Response
A disaster-relief agency uses the CISCO1811W-AG-C/K9 to establish secure VPN tunnels over 802.11a+g links between mobile command centers and HQ. When satellite or cellular links degrade, the analog backup modem ensures critical voice and data routes remain online. Outcome: high-availability communications under all conditions, faster coordination, improved rescue response times.
High-Availability Remote Clinic EHR Access with Dual-Link Resilience
A rural healthcare provider implements CISCO1811W-AG-C/K9 to deliver secure Wi-Fi for staff devices and Electronic Health Record (EHR) systems via primary broadband and secondary analog dial-up. Automatic failover maintains HIPAA-compliant connectivity for telemedicine and patient data transfers. Outcome: continuous EHR access, enhanced patient care and regulatory compliance in remote locations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Modular | Fixed | Modular | Fixed |
| Broadband | N/A | N/A | N/A | DSL | DSL |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE / RoHS | FCC / CE | FCC / CE | FCC / CE / RoHS | FCC, CE |
| Connectivity Type | Wired / Wireless / Ethernet | Wired | Wired | Wired | Wired |
| Depth | 9.50 inches | 10.8 inches | 14 in | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | FCC / CE | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC | EHWIC | NIM | EHWIC / NIM | EHWIC |
| Features | VPN / Firewall / IPv6 Compatible | VPN / Firewall / IPv6 Compatible | VPN / Voice / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 32 MB | 128 MB | 256 MB | 256 MB |
| Form Factor | Desktop | Rack-mount | Rack-mount | Rack-mount | Desktop |
| Height | 1.06 inches | 1.75 inches | 1.75 in | N/A | N/A |
| High Availability Support | Not Supported | Supported | Not Supported | Supported | Not Supported |
| Integrated Services | Voice | Voice / Video / WAN Optimization | Voice / Video | Voice / Video / WAN Optimization | Voice |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 4 LAN Ports | 2 LAN Ports | 4 LAN Ports | 2 LAN Ports | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 128 MB | 256 MB | 128 MB | 128 MB |
| Modular Slots Available | 1 Slot | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 / PPPoE / NAT | IP / IPv6 | IPv4 / IPv6 | IP / TCP/IP / UDP / ICMP / SNMP | IP, IPX, AppleTalk |
| Power | 65W | 65 Watt | 48 W | 65 W | 65 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply / Redundant | AC Power Supply |
| Product Name | Cisco 1811 Wireless Advanced Gateway | CISCO1841-HSEC/K9 | Cisco 1801 Integrated Services Router | CISCO1841-4SHDSL | CISCO1841-ADSL2-M |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI / SNMP / Web | SSH / Telnet / SNMP | CLI / SSH / Telnet / SNMP | Telnet / SSH / SNMP / HTTP/HTTPS | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | UL | N/A |
| Speed/Capacity | N/A | N/A | Gigabit | N/A | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.025 Gbps | 0.033 Gbps | 0.075 | 0.035 Gbps | 0.075 Gbps |
| Use Case | Business | Business / Enterprise | Enterprise | Enterprise / Business | Small Business / Enterprise |
| VPN Support | IPSec / SSL VPN / N/A | IPSec / SSL VPN | IPSec / SSL VPN | IPSec | IPSec |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | WAN | WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 4 WAN | 1 WAN |
| Weight | 6.60 lbs | 11.9 lbs | 12 lbs | N/A | N/A |
| Wi-Fi Standard | WiFi 3 | N/A | N/A | N/A | N/A |
| Width | 8.50 inches | 17.3 inches | 17 in | N/A | N/A |
| Wireless Support | Yes | No | No | No | No |
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Questions & Answers
Q
What are the key features of the Cisco 1811W-AG-C/K9 Security Router?
A
The Cisco 1811W-AG-C/K9 integrates 802.11a/g wireless, an analog modem backup, eight Fast Ethernet ports, hardware-accelerated VPN, stateful firewall, and QoS in a compact desktop form factor.
Q
Which wireless standards does the Cisco 1811W-AG-C/K9 support?
A
This router supports dual-band 802.11a and 802.11g for simultaneous operation at 5 GHz and 2.4 GHz, ensuring backward compatibility and optimal performance.
Q
Does the Cisco 1811W-AG-C/K9 include analog backup failover?
A
Yes. An integrated analog modem provides automatic WAN failover, maintaining connectivity if the primary broadband link fails.
Q
What security protocols are available on the Cisco 1811W-AG-C/K9?
A
It supports IPsec, SSL VPN, 3DES/AES encryption, Cisco IOS Zone-Based Firewall and intrusion prevention for comprehensive network protection.
Q
How many LAN and WAN interfaces are on this router?
A
The device provides eight Fast Ethernet LAN ports, one dedicated Gigabit Ethernet WAN port, and an RJ-11 port for analog backup.
Q
What performance can I expect from the Cisco 1811W-AG-C/K9?
A
With up to 75 Mbps of IPsec throughput and 225 Mbps of routing performance, it suits small offices requiring secure, reliable connectivity.
Q
Which operating system does this router run?
A
The Cisco 1811W-AG-C/K9 runs Cisco IOS Software with modular feature sets for routing, security, voice, and wireless management.
Q
Can I manage the router remotely?
A
Yes. You can use Cisco Configuration Professional, Secure Shell (SSH), HTTP/HTTPS, SNMP, and Cisco EnergyWise for centralized remote management.
Q
What VPN features does the Cisco 1811W-AG-C/K9 offer?
A
It supports site-to-site and client-to-site IPsec VPN, SSL VPN for clientless remote access, and GRE/L2TP for versatile tunnel options.
Q
How does the analog backup improve reliability?
A
The built-in analog modem automatically dials out when the primary link fails, delivering seamless WAN continuity without manual intervention.
Q
What quality-of-service capabilities are included?
A
Integrated QoS features include classification, marking, policing, shaping and low-latency queuing to ensure priority for voice and critical data.
Q
What are the power and mounting options?
A
The router operates on 12 V DC (external adapter) or optional Cisco power injectors, and supports desktop placement or optional wall mounting.
Q
Which business scenarios suit the Cisco 1811W-AG-C/K9?
A
Ideal for small branch offices, retail outlets or remote sites that require secure wired/wireless connectivity with built-in WAN backup.
Q
What software licensing is required?
A
The router ships with a Universal Cisco IOS image; you activate security or advanced IP features via Smart Licensing for flexibility and scalability.
Q
What warranty and support options are available?
A
Cisco offers a one-year limited hardware warranty and access to Cisco SMARTnet® for extended coverage, software updates, and 24/7 TAC support.
Q
Are firmware updates available for the Cisco 1811W-AG-C/K9?
A
Yes. Cisco regularly releases IOS updates with security patches, performance enhancements and new feature support via Cisco.com downloads.
