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$6,980.00
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CISCO2851-AC-IP
2851 w/ AC+POE,2GE,4HWIC,3PVDM,1NME-XD,2AIM,IP BASE,128F/512...
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
CISCO2851-AC-IP is a modular, integrated services router designed for enterprise branch networking with a robust architecture that combines flexible power options, dual 10/100 Ethernet interfaces, and modular expansion capabilities. It delivers integrated services including voice, video, and data while offering secure VPN features, built‐in firewall, and advanced QoS, ensuring reliable performance and scalability for demanding WAN/LAN environments.
CISCO2851-AC-IP supports versatile deployment use cases with configurable interface options, efficient throughput for small to medium branch offices, and the ability to integrate additional modules via its EHWIC/NIM slots. Its design focuses on reliable operation with high performance routing, comprehensive security, and the option for future enhancements, making it an excellent choice for secure branch connectivity and converged network communications.
CISCO2851-AC-IP price is $3,169.00, a 54.6% saving from the Cisco list price of $6,980.00. CISCO2851-AC-IP is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CISCO2851-AC-IP for additional pricing. Browse the full Router Isr 2800 series or explore all Cisco products.
Scenario: A distributed financial-services branch with 50+ IP phones and HD video endpoints leverages the CISCO2851-AC-IP-2851’s integrated AC+PoE to power endpoints, 3 PVDM DSP modules for voice processing, and 4 HWIC slots for analog-failover modules. The dual-Gigabit Ethernet interfaces and Cisco IOS IP Base enable end-to-end QoS and unified voice, video, and data convergence on a single platform. Outcome: 30% reduction in infrastructure costs, 99.9% call uptime, and simplified network management through centralized configuration and monitoring.
Scenario: A national retail chain deploys the CISCO2851-AC-IP-2851 at 200 stores to establish secure MPLS and Internet VPN tunnels over dual-GE links. Two AIM modules provide stateful firewall and intrusion prevention, while SFP ports deliver link diversity and failover. Outcome: Achieved PCI-DSS compliance, 40% reduction in network downtime, centralized security policy enforcement, and improved POS transaction throughput.
Scenario: An automotive manufacturing plant uses the CISCO2851-AC-IP-2851 as an IoT edge gateway aggregating sensor and PLC data via 4 HWIC serial modules and high-density NME-XD flash for local analytics. AC+PoE powers industrial cameras and wireless APs; dual AIM modules secure SCADA traffic with real-time IPS. Outcome: 25% decrease in production-line interruptions, enhanced operational visibility, and streamlined remote firmware updates over secure VPN.
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| CISCO2851-AC-IP |  C2821-VSEC-CCME/K9 |  C2801-4SHDSL/K9 |  CISCO2821-DC |  C2801-ADSL2-M/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Fixed | Fixed | Fixed | Modular |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / VPN | Firewall / Intrusion Prevention | Firewall | Firewall, Intrusion Prevention, ACL |
| Compliance Standards | FCC, CE | FCC / CE | FCC / CE | FCC, CE, UL | RoHS, FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Device Type | Router | Router | Router | Router | Router |
| Ethernet Technology | 10/100 | 10/100 Ethernet | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC / NIM | NIM | EHWIC | EHWIC | EHWIC / NIM |
| Features | VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / IPv6 Compatible / Firewall / Integrated Security | VPN / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | VPN, Firewall, Integrated Services, Modular Expansion, DSL, Security |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 128 MB | 128 MB | 128 MB | 128 MB |
| Form Factor | Rack-mount | Rack-mount / Desktop | Rack-mount | Rack-mount | Rack-mount |
| High Availability Support | Not Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video | Voice / Video / WAN Optimization | Voice | Voice / Video | Voice / Security / WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 / Console Port | RJ-45 | RJ-45 | RJ-45 |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 256 MB | 256 MB | 512 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4, IPv6 | IPv4 / IPv6 | IPv4 / IPv6 | IPv4, IPv6, OSPF, EIGRP, RIP, BGP, Static Routing | IPv4, IPv6 |
| Power | 125 W | 250W | 65 Watt | 55 W | 65 W |
| Power Source | AC Power Supply | AC Power Supply (250W) | AC Power Supply | DC Power Supply | AC Power Supply |
| Product Name | Cisco 2851-AC-IP Integrated Services Router | Cisco 2821 Integrated Services Router | Cisco 2801 Integrated Services Router - 4SHDSL/K9 | Cisco 2821-DC Integrated Services Router | Cisco 2801 ADSL2 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI, SNMP, SSH | Telnet / SSH / HTTP(s) / SNMP | Telnet / SSH / SNMP | Telnet, SSH, SNMP | Telnet, SSH, SNMP, HTTP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Stacking Capability | No | No | No | No | No |
| Throughput Capacity | 0.075 | 0.075 Gbps | 0.025 Gbps | 0.075 Gbps | 75 Mbps |
| Use Case | Enterprise | Enterprise / Business | Enterprise | Enterprise | Business |
| VPN Support | IPSec / DMVPN / N/A | IPSec VPN / SSL VPN / GRE / DMVPN | IPSec | IPSec | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | WAN | WAN | Dual WAN | WAN |
| WAN Ports | 2 WAN | 2 WAN | 4 WAN | 2 WAN | 1 WAN |
| Wireless Support | No | No | No | No | No |
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.
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.
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.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Powerful router with PoE support. Handles voice and data workloads reliably in busy environments.
Strong performance and flexibility. Ideal for integrated network and voice deployments.
Cisco robustness you can trust. Stable under load and easy to manage.
Good processing capacity and dependable uptime. Suitable for enterprise branches.
A versatile router that meets demanding business requirements. No issues so far.
The Cisco 2851-AC-IP offers AC power, PoE support on two Gigabit Ethernet ports, four HWIC slots, three PVDM voice modules, one NME-XD slot, dual AIM slots, IP Base feature set, 128 MB flash and 512 MB DRAM.
Typical power consumption is 70W (AC mode) with PoE disabled; PoE budget provides up to 30W per port, subject to power-supply capacity.
Yes. Two Gigabit Ethernet ports deliver PoE to IEEE 802.3af/at devices, with a total budget of up to 60W, managed via the IP Base license.
It includes two Gigabit Ethernet ports, four HWIC slots for modular connectivity and one NME-XD slot for high-density expansions.
The router features 512 MB DRAM for advanced processing and 128 MB flash for Cisco IOS storage and configuration files.
It ships with the Cisco IOS IP Base license, supporting advanced routing protocols, security features and basic voice integration.
Yes. Three PVDM slots support up to 96 VoIP calls, while dual AIM slots enable voice-over-IP and integrated session management.
Supports four HWIC modules (e.g., serial, VPN, QoS) and one NME-XD slot for enhanced WAN, voice or security modules.
Yes. It fits a standard 19-inch rack with included rack-mount brackets, occupying 1 RU of rack space.
Ideal for small to medium enterprises requiring branch WAN connectivity, unified voice/data networking, secure site-to-site VPNs and PoE support.
It provides IPsec site-to-site and remote-access VPNs, supporting AES, 3DES encryption and dynamic VPN with Cisco Easy VPN.
Download the latest IOS from Cisco.com, transfer it via TFTP/FTP/USB, then use CLI commands (`copy tftp flash:` and `boot system`) to install.
Operating temperature: 0–40°C, humidity: 10–85% non-condensing. Storage: –20–70°C. Conforms to RoHS and CE standards.
Includes a 90-day limited hardware warranty and 90-day Cisco TAC support. Extended service contracts available through Cisco SMARTnet.
No. The 2851 does not support switch-style stacking; deploy multiple units in a managed cluster using Cisco IOS features such as VRF and dynamic routing.
Delivers up to 85 Mbps of forwarding performance for aggregated LAN/WAN traffic when fully loaded with services enabled.
United States
