Cisco 2800 Router

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

62 来源

The Cisco 2800 Series Integrated Services Routers (ISR), comprising the 2801, 2811, 2821, and 2851 models, have transitioned from enterprise workhorses to specialized legacy assets. While officially End-of-Support as of November 2015 Cisco, they remain active in the secondary market, primarily for educational and niche laboratory environments.

Product Overview & Key Differences

The series scales in performance from the compact 2801 to the 2RU 2851, with the 2821 and 2851 being the first to offer onboard Gigabit Ethernet Cisco.

Feature	Cisco 2801	Cisco 2811	Cisco 2821	Cisco 2851
Max Throughput	~46 Mbps	~61 Mbps	~87 Mbps	~117 Mbps
Max DRAM	384 MB	768 MB	1024 MB	1024 MB
Expansion	2 HWIC	4 HWIC / 1 NME	4 HWIC / 1 NME	4 HWIC / 1 NME
Onboard LAN	Fast Ethernet	Fast Ethernet	Gigabit Ethernet	Gigabit Ethernet

Market Trends & Resale Insights (2026 Perspective)

* Resale Pricing: Used and refurbished units are highly affordable, generally ranging from $30 to $150 depending on the model and installed memory Ebay Ebay. The 2811 is often cited as the "sweet spot" for hobbyists due to its balance of expansion slots and power consumption Reddit.

* Dominant Use Case: The primary market demand now stems from IT education and certification prep (CCNA/CCNP) Cisco. They are also used for internal network segmentation in low-bandwidth environments where "security through obscurity" is preferred over modern consumer routers that often include insecure features like UPnP Reddit.

* Security & Performance Warning: These routers are not recommended for use as primary internet gateways in 2026. Their throughput is insufficient for modern fiber connections, and the lack of security updates since 2015 makes them vulnerable to contemporary exploits Cisco.

Sourcing Recommendations

* Retail Platforms: eBay remains the most consistent source for individual units, often offering "Certified Refurbished" options with short warranties Ebay.

* B2B Channels: For bulk sourcing or guaranteed testing, specialized refurbishers like CXtec or UsedRouter.com provide deeper inventory of these legacy models compared to general B2B marketplaces Usedrouter Cxtec.

Sources & References

62 sources cited · Verified industry data & reports

Cisco 2800 Series Integrated Services Routers

Cisco Systems

The Cisco 2800 Series Integrated Services Routers has been retired and is no longer supported. End-of-Sale Date: 2011-11-01 End-of-Support Date: 2016-10-31

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Reddit · r/Cisco

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