United States
Name:
CISCO1812/K9
- Description:
- Dual Ethernet Security Router with ISDN S/T Backup
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- Brand:
- Cisco
- Condition:
- GTIN:
- 746320951447
- Warranty:
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- Price:
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3 Year Extended Warranty
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14-Day Money Back Guarantee
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Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.
Free Ground Shipping Available
Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.
International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
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.
Service Boundaries & Exclusions
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.
Know your location’s service type.
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.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
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.
TRUSTED, TRIED, PROVEN
CISCO1812/K9 Overview
CISCO1812/K9 is a fixed, integrated services router engineered to deliver reliable performance for business and small business networks. It offers versatile power options with an AC power supply and built‐in redundancy to ensure continuous operation during critical network demands.
This router comes equipped with dedicated WAN and LAN interfaces that support 10/100 Ethernet technology and facilitates advanced integrated services such as voice and video. Modular expansion capabilities, robust VPN support including IPSec and SSL VPN options, high throughput performance with QoS features, and integrated firewall and intrusion prevention systems make the CISCO1812/K9 ideal for secure enterprise connectivity and unified communications use cases.
What is the price of CISCO1812/K9?
Pricing for CISCO1812/K9 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for CISCO1812/K9.
Explore more options from Routers or explore other Cisco products.
CISCO1812/K9 Specifications
| Product Type | Integrated Services Router |
| VPN Support | IPSec / SSL VPN / DMVPN |
| Power Source | AC Power Supply / Redundant |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing |
| Broadband | DSL |
| Architecture | Fixed |
| WAN Configuration | 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 | CLI / SNMP / Telnet / SSH |
| Compliance Standards | IEEE802.3, IEEE802.3u, FCC, CE |
| Wireless Support | No |
| Speed/Capacity | Fast Ethernet |
| Firewall Features | Yes |
| Features | VPN, VoIP, IPv6 Compatible, Firewall, MPLS |
| Use Case | Business / Small Business |
| Management | Managed |
| Form Factor | Rack-mount / Desktop |
| Integrated Services | Voice / Video |
| High Availability Support | Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | N/A |
| 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 | CISCO1812/K9 Integrated Services Router |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
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 | Fixed | Fixed | Fixed | Fixed |
| Broadband | DSL | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / IPSec VPN | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | IEEE802.3, IEEE802.3u, FCC, CE | FCC, CE, UL | FCC / CE / UL | FCC, CE | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired / Wireless | Wired |
| Depth | N/A | N/A | N/A | 11.0 inches | 14 inches |
| 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 | EHWIC | EHWIC | EHWIC | EHWIC | NIM |
| Features | VPN, VoIP, IPv6 Compatible, Firewall, MPLS | VPN / VoIP / Firewall / IPv6 Compatible | VPN / VoIP / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall / VoIP | VPN, Firewall, IPv6 Compatible, Voice, Video |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 128 MB | 256 MB | 128 MB | 128 MB |
| Form Factor | Rack-mount / Desktop | Rack-mount | Desktop | Desktop | Desktop |
| Height | N/A | N/A | N/A | 1.73 inches | 1.75 inches |
| High Availability Support | Supported | Supported | Not Supported | Not Supported | Supported |
| Integrated Services | Voice / Video | Voice / Data / Security | Voice / Video / WAN Optimization | Voice | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45, SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | N/A | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 256 MB | 128 MB | 512 MB | 256 MB |
| Modular Slots Available | 1 Slot | 2 Slots | 2 Slots | 1 Slot | 2 Slots |
| Network Protocols | IPv4 / IPv6 | TCP/IP | IPv4 / IPv6 | IPv4, IPv6 | IP, VoIP |
| Power | 65W | 38 W | 65W | 35W | 85 Watt |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | CISCO1812/K9 Integrated Services Router | Cisco 1841 Integrated Services Router - T1SEC | Cisco C1841-3G-S Integrated Services Router | CISCO1812W-AG-C/K9 | Cisco C1861-2B-VSEC/K9 Integrated Services Router |
| Product Type | Integrated Services Router | Enterprise Router | Enterprise Router | Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI / SNMP / Telnet / SSH | Telnet / SSH / SNMP | Telnet / SSH / SNMP | Telnet/SSH/SNMP | SSH, Telnet, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | RIP / OSPF / EIGRP / BGP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | Fast Ethernet | N/A | N/A | N/A | Fast Ethernet |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | N/A | 0.033 Gbps | 0.025 Gbps | 0.025 Gbps | 15 Mbps |
| Use Case | Business / Small Business | Enterprise | Enterprise | Business | Business |
| VPN Support | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN | IPSec | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | WAN | WAN | WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | Modular WAN | 1 WAN | 2 WAN | 2 WAN |
| Weight | N/A | N/A | N/A | 9.1 lbs | 10 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | WiFi 4 | N/A |
| Width | N/A | N/A | N/A | 17.0 inches | 17 inches |
| Wireless Support | No | No | No | Yes | No |
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Questions & Answers
Q
What is the Cisco 1812/K9 Dual Ethernet Security Router with ISDN S/T Backup?
A
The Cisco 1812/K9 is a dual 10/100 Ethernet security router featuring integrated firewall, VPN, and ISDN S/T backup, designed for reliable small business connectivity.
Q
What are the key features of the Cisco 1812/K9?
A
Key features include dual Ethernet ports, Stateful Packet Inspection firewall, IPsec VPN, ISDN S/T backup interface, Cisco IOS, and comprehensive security services.
Q
What maximum throughput does the Cisco 1812/K9 support?
A
The Cisco 1812/K9 delivers up to 25 Mbps of stateful firewall throughput and 15 Mbps of IPsec VPN throughput for secure site-to-site connections.
Q
How many and what types of ports are available on the Cisco 1812/K9?
A
It provides two 10/100 Ethernet LAN/WAN switch ports and one ISDN S/T backup port, plus an RJ-45 console port for out-of-band management.
Q
How does ISDN S/T backup work on the Cisco 1812/K9?
A
ISDN S/T backup automatically switches traffic to the ISDN network when the primary WAN link fails, ensuring uninterrupted business connectivity.
Q
Is the Cisco 1812/K9 suitable for small businesses?
A
Yes. Its compact design, essential security features, and failover support make it ideal for small to medium-sized enterprises requiring high availability.
Q
Which security features are integrated in the Cisco 1812/K9?
A
It includes a Stateful Packet Inspection firewall, URL and content filtering, intrusion prevention, anti-malware, and Advanced Encryption Standard (AES) support.
Q
Does the Cisco 1812/K9 support VPN connectivity?
A
Yes. It supports up to three concurrent IPsec VPN tunnels and GRE tunnels for secure remote access and site-to-site communications.
Q
How is the Cisco 1812/K9 managed and configured?
A
Management options include Cisco IOS CLI via console or SSH, Cisco Configuration Professional GUI, SNMP for monitoring, and Cisco Security Manager integration.
Q
What operating system runs on the Cisco 1812/K9?
A
The router runs Cisco IOS Software, offering modular security, advanced routing protocols, and regular feature updates through Cisco software licensing.
Q
How do I perform the initial setup of the Cisco 1812/K9?
A
Connect to the console port, use the Cisco IOS CLI setup wizard, configure WAN/LAN interfaces, apply security policies, and test failover functionality.
Q
What are the power consumption and environmental specifications?
A
The Cisco 1812/K9 consumes 15 W, operates from 100–240 VAC, supports 0° to 40°C ambient temperature, and complies with RoHS and CE standards.
Q
What warranty and support options are available for the Cisco 1812/K9?
A
Cisco offers a one-year limited hardware warranty, 90-day software updates, and optional SMARTnet support for extended coverage and 24/7 access to TAC.
Q
Is the Cisco 1812/K9 compatible with Cisco modules and accessories?
A
The fixed-configuration 1812/K9 does not accept expansion modules but supports standard RJ-45 and ISDN cables, power adapters, and rack-mount kits.
Q
What is the end-of-life status of the Cisco 1812/K9?
A
The Cisco 1812/K9 has been superseded by newer ISR 1000 Series models; limited support and replacement options are available through Cisco’s EOL policy.
Q
How can I update the firmware on the Cisco 1812/K9?
A
Download the latest Cisco IOS image from the Cisco Software Download center and use TFTP or USB for a secure firmware upgrade via CLI.
Q
What accessories are included with the Cisco 1812/K9?
A
The package includes the Cisco 1812/K9 router, power cord, RJ-45 rollover console cable, rubber feet, quick start guide, and licensing information.
