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CISCO877-M-K9
ADSL Security Router with Annex M Support
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CISCO877-M-K9 is a modular integrated services router engineered for branch offices and small businesses that demand reliable connectivity and versatile WAN/LAN interface options. Its architecture features a modular design with a built-in 10/100 Fast Ethernet switch for LAN connectivity and a dedicated WAN port—complemented by an optional NIM slot for tailored interface expansion, ensuring optimal performance and adaptability in diverse deployment scenarios.
CISCO877-M-K9 provides multiple power options via an AC power supply with redundancy support, integrated VPN features including IPSec, and robust firewall and QoS capabilities. It delivers integrated services such as voice and video, supports industry-standard routing protocols (RIP, OSPF, EIGRP, BGP, and static routing), and achieves a throughput capacity of up to 30 Mbps, making it ideal for secure branch connectivity and small business operations.
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Scenario: A remote branch office lacking fiber must support VoIP, MDM and cloud-based ERP over a single ADSL line. Deploy the Cisco877-M-K9-ADSL Security Router with Annex M Support to unlock up to 3.3 Mbps upstream, hardware-accelerated VPN and integrated firewall. Benefit: Accelerated VoIP call clarity, reduced latency for SaaS applications, secure IPsec tunnels to HQ and centralized management—all on existing copper infrastructure.
Scenario: Remote employees in underserved areas struggle with video conferencing and large file uploads over basic ADSL. Leverage the Cisco877-M-K9-ADSL Security Router with Annex M Support to boost upstream capacity and terminate DMVPN/IPsec tunnels directly at the branch. Benefit: Consistently high upload throughput for HD collaboration, AES-256 encryption for corporate data, simplified zero-touch provisioning and strict policy enforcement to meet IT security mandates.
Scenario: Chain retail outlets rely on ADSL for point-of-sale transactions and inventory sync but must adhere to PCI-DSS standards. Install the Cisco877-M-K9-ADSL Security Router with Annex M Support to segment POS VLANs, enforce stateful packet inspection and accelerate upstream data flows to payment gateways. Benefit: Streamlined PCI-DSS certification, end-to-end encryption of payment traffic, minimized chargeback risk and real-time monitoring via Cisco IOS software.
To get the detailed certification, please go to the Compliance Center.
 CISCO877-M-K9 |  C888SRST-K9 |  CISCO881G-A-K9 |  CISCO888GW-GN-E-K9 |  CISCO876-SEC-I-K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Fixed | Fixed | Fixed | Fixed |
| Broadband | DSL | N/A | N/A | N/A | DSL |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention |
| Compliance Standards | FCC / CE | FCC, CE, UL | FCC / CE | FCC / CE / RoHS | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | 7.5 inches | N/A | 14 inches | 7.5 inches |
| Device Type | Router | Router | Router | Gateway | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100/1000 | 10/100 |
| Expansion Slots | NIM | N/A | EHWIC | N/A | EHWIC |
| Features | VPN / VoIP / IPv6 Compatible / Firewall / NAT | VPN / VoIP / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall / QoS | VPN, Firewall, NAT, Integrated Security |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 128 MB | 256 MB | 256 MB | 128 MB |
| Form Factor | Desktop | Rack-mount | Desktop | Rack-mount | Desktop |
| Height | N/A | 1.1 inches | N/A | 1.75 inches | 1.5 inches |
| High Availability Support | Not Supported | Supported | Not Supported | Supported | Not Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video | Voice | Voice / Video / WAN Optimization | Voice, Data |
| Interface Ports | RJ-45 / Modular Interface | RJ-45 / SFP | RJ-45 | RJ-45 / SFP | RJ-45 |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 512 MB | 256 MB | 512 MB | 256 MB |
| Modular Slots Available | 1 Slot | N/A | N/A | N/A | 1 Slot |
| Network Protocols | IPv4 / IPv6 | IP, PPP, Frame Relay, MLPPP | IPv4 / IPv6 | IPv4 / IPv6 / MPLS | IPv4, IPv6, NAT, VPN |
| Power | 65 Watt | 45W | 65W | 65 Watt | 25W |
| Power Source | AC Power Supply, Redundant | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | CISCO877-M-K9 | Cisco C888SRST-K9 | Cisco 881G-A-K9 Integrated Services Router | CISCO888GW-GN-E-K9 | Cisco 876 Security Integrated Services Router |
| Product Type | Integrated Services Router | Enterprise Router | Integrated Services Router | Enterprise Router | Integrated Services Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH | Telnet, SSH, SNMP | SSH / Telnet / SNMP | SSH / HTTPS / SNMP / Telnet | CLI, SNMP, Web UI |
| Routing Protocols | RIP / OSPF / EIGRP / BGP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF, EIGRP, RIP, Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | Fast Ethernet | N/A | N/A | Gigabit | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 30 Mbps | 0.15 Gbps | 0.1 Gbps | 1 Gbps | 0.01 Gbps |
| Use Case | Small Business / Branch Office | Business | Small Business / Branch Office | Enterprise | Small Business, Enterprise Branch Office |
| VPN Support | IPSec | IPSec / SSL VPN / DMVPN / N/A | IPSec | IPSec / SSL VPN | IPSec, SSL VPN |
| WAN Configuration | Single WAN with Optional Modular Expansion | Dual WAN | Dual WAN | Dual WAN | WAN |
| WAN Ports | 1 WAN Port | 2 WAN | 2 WAN | 2 WAN | 1 WAN |
| Weight | N/A | 5.5 lbs | N/A | 15 lbs | 5.5 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | 8.8 inches | N/A | 17 inches | 8.5 inches |
| Wireless Support | No | No | No | No | No |
Cisco 877-M-K9 is a reliable ADSL router with Annex M support. It delivers stable performance and robust security, making it ideal for our business's internet needs.
Great ADSL performance with Annex M support. Cisco 877-M-K9 ensures secure and stable connectivity, providing a great solution for our remote office network.
The Cisco 877-M-K9 router delivers reliable ADSL performance and solid security features. It's been a dependable addition to our business's network infrastructure.
Reliable, secure, and fast. The Cisco 877-M-K9 router handles our ADSL2/2+ connections with ease and ensures secure, high-performance internet access.
Cisco 877-M-K9 is a dependable router that provides reliable ADSL connectivity with excellent security features. Ideal for businesses requiring secure, high-speed internet.
The Cisco 877M-K9 is an integrated ADSL2/2+ security router with Annex M support, delivering enhanced upload speeds, robust firewall protection, VPN capabilities, and flexible management for small and medium-sized networks.
Annex M is an ADSL2+ standard that increases upstream bandwidth to up to 3.5 Mbps by reallocating downstream spectrum, improving performance for upload-intensive applications like VoIP and data backup.
It supports ADSL, ADSL2, and ADSL2+ standards with downstream speeds up to 24 Mbps and upstream speeds up to 3.5 Mbps via Annex M.
Yes, the Cisco 877M-K9 is compatible with Annex A and Annex B ADSL services, ensuring interoperability with most global DSL networks.