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C2811-2SHDSL/K9
2811 2-pair G.SHDSL bundle, HWIC-2SHDSL, SP Svcs, 128F/512D
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C2811-2SHDSL/K9 is a fixed modular enterprise router engineered with integrated dual SHDSL WAN interfaces that deliver secure, high-performance broadband connectivity, while its scalable design supports multiple service modules for voice, video, and data. It offers a robust architecture with flexible power options from an AC supply, enabling consistent operation in business-critical environments.
C2811-2SHDSL/K9 provides comprehensive integrated services including built-in VPN security features, essential firewall capabilities, and quality of service (QoS) for efficient traffic management. With dual WAN configuration, modular expansion slots for NIM/EHWIC modules, and proven throughput and redundancy performance, it is ideally suited for enterprise use cases requiring secure remote connectivity and reliable branch office deployment.
C2811-2SHDSL/K9 price is $1,404.00, a 54.6% saving from the Cisco list price of $3,095.00. C2811-2SHDSL/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C2811-2SHDSL/K9 for additional pricing. Browse the full Router Isr 2800 series or explore all Cisco products.
To get the detailed certification, please go to the Compliance Center.
| C2811-2SHDSL/K9 |  C2851-VSEC-CCME/K9 |  C2851-35UC/K9 |  C2801-VSEC-CUBE/K9 |  C2811-WAE-302/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Modular | Fixed | Modular |
| Broadband | DSL | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE | IEEE 802.3 / IEEE 802.3u | FCC / CE / RoHS | FCC / CE | IEEE 802.3 / IEEE 802.11 |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 17 inches | N/A | N/A | 15 inches | N/A |
| Device Type | Router | Router | Router | Router / Voice Gateway | Router |
| EMC | FCC, ICES-003 | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | NIM, EHWIC | EHWIC / NIM | EHWIC | EHWIC | EHWIC |
| Features | VPN / IPv6 Compatible / Firewall | VPN / Integrated Security / Firewall / VoIP / IPv6 Compatible | VPN / VoIP / Integrated Services / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | N/A | 256 MB | 128 MB | 256 MB | 128 MB |
| Form Factor | Rack-mount / Desktop | Rack-mount | Rack-mount | Rack-mount | Chassis |
| Height | 1.75 inches | N/A | N/A | 1.75 inches | N/A |
| High Availability Support | Not Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video | Voice / Video / WAN Optimization | Voice | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 / SFP | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 2 LAN Ports | 4 LAN Ports | 2 LAN Ports | 4 LAN Ports | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IP / Frame Relay / PPP / HDLC | IPv4 / IPv6 | IPv4 / IPv6 | IP / TCP/IP / UDP / ICMP |
| Power | 125 W | 180 Watts | 220 W | 60 W | 225 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco 2811 Integrated Services Router - 2SHDSL | Cisco C2851-VSEC-CCME/K9 | Cisco 2851 Integrated Services Router (UC) | Cisco 2801 VSEC CUBE | Cisco 2811 Integrated Services Router Wireless Access Edition |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH | SSH / Telnet / SNMP | Telnet / SSH / SNMP | Telnet / SSH / SNMP / HTTP | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | UL/cUL, CE | N/A | N/A | N/A | N/A |
| Speed/Capacity | N/A | Gigabit | N/A | Fast Ethernet | 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 | 80 Mbps | 75 Mbps | 37 Mbps | N/A |
| Use Case | Enterprise | Enterprise | Enterprise / Business | Enterprise | Enterprise |
| VPN Support | IPSec | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN / DMVPN / N/A | IPSec / DMVPN / N/A |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 17 lbs | N/A | N/A | 12 lbs | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | WiFi 3 |
| Width | 19 inches | N/A | N/A | 17 inches | N/A |
| Wireless Support | No | No | No | No | Yes |
2811 2-pair G.SHDSL bundle ensures reliable WAN connectivity. HWIC-2SHDSL supports stable UC and voice communications for branch offices.
Durable and predictable. Handles SP services efficiently while maintaining secure voice and network performance.
Easy to deploy and manage. Provides consistent data and UC performance over SHDSL connections.
Reliable Cisco solution. Supports small branches with stable WAN, UC, and voice communications.
High-performing and robust. Ensures seamless voice and UC operations across branch offices with SHDSL links.
SKU C2811-2SHDSL/K9 is a Cisco 2811 router bundle with a 2-pair HWIC-2SHDSL G.SHDSL module, Service Provider Services licensing, and a 128F/512D traffic profile.
The HWIC-2SHDSL module delivers two-pair symmetric high-speed DSL up to 5.7 Mbps per pair, hot-swappable installation, built-in diagnostics and Cisco IOS integration.
It supports up to 5.7 Mbps per pair, for an aggregated maximum of 11.4 Mbps of symmetrical data throughput.
You can reach up to 6 km of standard twisted-pair copper, subject to line quality and attenuation conditions.
Yes. The HWIC-2SHDSL module is compatible with the Cisco 2811 and all 2800 Series platforms that support HWIC slots.
Slide the HWIC-2SHDSL into an available HWIC slot, secure it with screws, power on the router, and configure via IOS CLI under the controller interface.
Yes. It includes Cisco SP Services licensing for carrier-grade features such as advanced QoS, reliability and service monitoring.
They define the default service provider traffic template with 128 Kbps framing overhead and 512 Kbps data allocation per direction for optimized QoS.
Use Modular QoS CLI: define class-maps and policy-maps, then apply service-policies to the physical interface associated with the SHDSL controller.
Yes. You can upgrade via TFTP or FTP following Cisco IOS upgrade procedures for HWIC modules to ensure latest features and security.
The Cisco 2811 accepts 110–240 V AC input; the HWIC-2SHDSL draws minimal additional power within the router’s standard PSU capacity.
Cisco offers a 90-day limited hardware warranty, with optional SMARTnet support available for 8×5 or 24×7 coverage and next-business-day replacement.
Depending on IOS feature set and memory, the router supports up to 100,000 concurrent sessions including VPNs and NAT flows.
It’s ideal for remote-office VPNs, VoIP, video conferencing and secure cloud connectivity in SMB and branch deployments.
2-pair doubles aggregate bandwidth, extends reach, and provides redundancy compared to single-pair G.SHDSL links.
You can buy it through authorized Cisco resellers or directly on the Cisco online store by ordering SKU C2811-2SHDSL/K9.