CISCO1811/K9 - Cisco 1800 Series Router Overview
CISCO1811/K9 - Cisco 1800 Series Router is a genuine edge and wide-area routing product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco 1800 Series family, the CISCO1811/K9 unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
From a specification standpoint, it offers 2 ports for client, server or uplink connectivity; aggregate capacity of 25 Mbps. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
Typical deployments include branch and campus WAN connectivity, service-provider edge and MPLS deployments, and secure remote-site interconnect. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “Dual Ethernet Security Router with V.92 Modem Backup”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the CISCO1811/K9. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise WAN
Branch and campus routing with advanced services.
Service Provider
Edge routing for ISP and MPLS deployments.
Data Center
Interconnect core and aggregation layers reliably.
Buying a Pre-Owned CISCO1811/K9
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
CISCO1811/K9 Specifications | |
| Brand | Cisco |
| Model | CISCO1811/K9 |
| Type | Dual Ethernet Security Router |
| Backup Option | V.92 Modem |
| Number of LAN Ports | 2 |
| LAN Port Type | 10/100 Mbps Ethernet |
| WAN Ports | 2 |
| Routing Protocol | RIP, OSPF, BGP |
| Security Protocols | IPSec, VPN |
| Firewall | Stateful Packet Inspection (SPI) |
| Dimensions (HxWxD) | 1.75 x 13.5 x 10.5 inches |
| Power Supply | 100-240V AC |
| Operating Humidity | 10% to 85% non-condensing |
| Storage Humidity | 5% to 95% non-condensing |
| Flash Memory | 32 MB |
| DRAM | 128 MB |
| Console Port | RJ-45 |
| Auxiliary Port | RJ-45 |
| VPN Throughput | 25 Mbps |
| Max Concurrent VPN Connections | 50 |
CISCO1811/K9 - Product Notes
This listing is a specific SKU variant of the CISCO1811/K9 family. Review the specifications above and confirm compatibility with your existing infrastructure, including software version, mounting, and interface requirements, before ordering.
For volume requirements we offer configuration checks and staged delivery options. Our team can confirm revision levels, software compatibility, and lead time before you place an order.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation.
CISCO1811/K9 - Product Notes
This listing is a specific SKU variant of the CISCO1811/K9 family. Review the specifications above and confirm compatibility with your existing infrastructure, including software version, mounting, and interface requirements, before ordering.
For volume requirements we offer configuration checks and staged delivery options. Our team can confirm revision levels, software compatibility, and lead time before you place an order.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation.
CISCO1811/K9 - Product Notes
This listing is a specific SKU variant of the CISCO1811/K9 family. Review the specifications above and confirm compatibility with your existing infrastructure, including software version, mounting, and interface requirements, before ordering.
For volume requirements we offer configuration checks and staged delivery options. Our team can confirm revision levels, software compatibility, and lead time before you place an order.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation.







