Cisco 877W-G-E-M-K9 Integrated Services Router (ISR 870 Series)

Cisco 877W-G-E-M-K9 is a fixed-configuration Integrated Services Router (ISR) from Cisco’s 870 Series, designed for small office and remote branch connectivity.

It combines ADSL WAN connectivity, a 4-port Fast Ethernet switch, and integrated WiFi (802.11b/g) into a single device, making it a compact all-in-one broadband router for legacy enterprise and SME deployments.

This model is commonly used for DSL-based internet access, VPN connectivity, and basic branch networking services.

Key Features

• Built-in ADSL / ADSL2 / ADSL2+ WAN interface
• 4-port 10/100 Mbps Ethernet switch (LAN)
• Integrated 802.11b/g wireless access point (WiFi-enabled “W” model)
• Supports:
  • IPsec VPN (site-to-site and remote access)
  • Stateful firewall
  • Basic intrusion prevention features
• QoS for voice and video prioritization
• Cisco IOS-based routing platform
• Designed for small office / branch office connectivity

Technical Specifications

• Part Number: CISCO877W-G-E-M-K9
• Series: Cisco 870 Series ISR
• WAN Interface: ADSL over POTS (RJ-11)
• LAN Interfaces: 4 × Fast Ethernet (10/100 RJ-45)
• Wireless: 802.11b/g integrated access point
• Routing Features: Static routing, RIP, OSPF (license dependent)
• Security: NAT, firewall, IPsec VPN
• Memory: ~128 MB DRAM (expandable to 256 MB)
• Form Factor: Desktop / small rack-mountable
• Use Case: Small branch office DSL router with WiFi