Cisco C1161-4P Full Product Description

1. Short Overview

Suffix Breakdown

• C1161: Flagship high-performance dual-combo Ethernet ISR chassis of Cisco 116x series, no integrated DSL chipset, optimized for fiber-first Metro Ethernet enterprise and ISP deployments, top forwarding & crypto throughput across 1000 Series ISRsCisco
• NoX: Base memory variant equipped with 4 GB DRAM + 4 GB flash (X-suffix C1161X models upgrade to 8GB DRAM/8GB flash with native IOx edge application hosting capability)Cisco
• 4: Integrated 4-port full Gigabit copper LAN switch (low-port compact variant vs 8-port C1161-8P)
• P: 2 out of 4 LAN ports support PoE power output: 1× IEEE 802.3af PoE (15.4W) + 1× IEEE 802.3at PoE+ (30W), total shared PoE power budget of 45W

Core Differentiators

1. vs C1161-8P: C1161-8P provides 8 LAN ports with 120W PoE budget for medium branches; C1161-4P is cost-optimized compact 4-port model targeting micro-branch, teleworker and small retail scenarios with minimal PoE endpoints.
2. vs enhanced memory C1161X-4P: X-suffix models carry 8GB DRAM/8GB flash with native IOx edge analytics and local application hosting; base C1161-4P ships with standard 4GB DRAM/4GB flash without IOx workload supportCisco.
3. vs cellular variant C1161-4PLTEP: LTE variants add front pluggable PIM slots for swappable 4G/5G cellular modules; base C1161-4P is wired-only without cellular expansion capability.
4. vs wireless variant C1161-4PWE: Wireless models integrate internal dual-band 802.11ax Wi-Fi 6 WLAN AP hardware; C1161-4P omits built-in wireless access point functionality.
5. vs DSL-integrated C1166/C1167 series: C1166/C1167 integrate built-in VDSL2/ADSL2+/G.FAST DSL modems for copper telephone line access; C1161-4P is pure Ethernet architecture without DSL chipset.
6. vs legacy ISR G2 C800 routers: Older C800 platforms run classic IOS without native SD-WAN, limited crypto acceleration and no flexible SFP fiber combo uplink; C1161-4P adopts modern multi-core IOS XE architecture and dedicated hardware VPN acceleration with industry-leading 825 Mbps IPsec throughputCisco.

2. Hardware Interface & Performance Specifications

Dual Independent Multi-Media Combo WAN Architecture (Automatic Dual-Path Failover Supported)

1. Combo Gigabit Ethernet WAN Port 0 (GE0/0/0)
   10/100/1000BASE-T RJ45 copper interface paired with a shared SFP slot supporting industry-standard 1G fiber transceivers (SX/LX/T). Auto MDI/MDI-X speed negotiation, enabling flexible fiber or copper primary high-bandwidth Metro Ethernet broadband access for small branch voice, video and data workloadsCisco.
2. Combo Gigabit Ethernet WAN Port 1 (GE0/0/1)
   Separate independent 10/100/1000BASE-T RJ45 copper interface paired with a second dedicated SFP slot for redundant fiber/copper backup uplink. Fully compatible with VRRP, HSRP, MHSRP and continuous IP SLA link health monitoring to trigger automatic SD-WAN policy-based traffic steering and failover across two independent multi-media WAN pathsCisco.

4-Port Full Gigabit Managed LAN Switch

• Port 1: IEEE 802.3af PoE (max 15.4W for standard entry-level IP cameras, single-line VoIP phones, low-power indoor Wi-Fi access points)
• Port 2: IEEE 802.3at PoE+ (max 30W for compact high-power 4K PTZ surveillance cameras, low-density Wi-Fi 6 enterprise APs)
• Ports 3–4: Standard non-PoE Gigabit copper for desktop PCs, local file servers and low-power wired IoT sensors
  Total shared PoE power budget: 45W, eliminating bulky external PoE injectors for small-scale unified communications and low-density surveillance deployments.
  Full enterprise Layer 2 switching feature set:
• 802.1Q VLAN tagging, port isolation, static MAC address security, dedicated DMZ port assignment
• Broadcast/multicast storm suppression, SPAN traffic mirroring, LACP link aggregation, Cisco Auto Smartport auto-provisioning macros
• Per-port CoS traffic marking, bandwidth policing, private VLAN segmentation, CDP device discovery

Management & Auxiliary Ports

1. Micro-USB Console port: Dedicated out-of-band local CLI access via Micro-USB cable for offline factory provisioning and on-site troubleshooting
2. Single USB 3.0 Type-A dual-purpose host port: Supports external flash drives for offline configuration backups, system log archiving, EEM automation scripts and Zero-Touch Provisioning (ZTP) image deployment; also compatible with optional CAT4/CAT6 USB LTE dongles for auxiliary tertiary cellular backup WAN
3. External DC power input jack (requires separate 12V DC 115W universal AC power adapter to sustain full 45W PoE load; no internal integrated PSU)
4. Hardware reset button, Kensington anti-theft lock slot for physical equipment protection
5. Embedded RTC real-time clock for precise timestamping of security audit logs, digital certificate validity and network fault events

Memory, Storage & Performance Benchmarks

• DRAM: 4 GB fixed non-upgradeable system memory, supports up to 100 concurrent IPsec/DMVPN tunnels, dual-path SD-WAN multi-path forwarding, inline NGIPS inspection and full 4-port PoE LAN + dual combo WAN traffic processing under maximum full load
• Flash storage: 4 GB onboard non-upgradeable flash; factory preloadedc900-universalk9-mzIOS XE Universal Advanced Security image, minimum supported firmware release 16.11.1Cisco
• Maximum IPsec encrypted IMIX throughput (multi-tunnel): 825 Mbps (highest in ISR 1000 Series)Cisco
• Unencrypted raw IPv4 IMIX routing throughput: Up to 1 Gbps
• Concurrent site-to-site IPsec/DMVPN tunnels: Up to 100
• Concurrent remote SSL VPN users: Up to 100

Front Panel LED Status Indicators

Physical & Power Parameters

• Form factor: Slim fanless metal desktop chassis, optional wall-mount bracket and ACS-1100-RM2 19-inch rack-mount kit available
• Dimensions (H × W × D): 42 mm × 322 mm × 226 mm (1.65 × 12.7 × 8.9 inches) with anti-slip rubber feet
• Weight: ~1.48 kg (3.26 lbs) without external power adapter and SFP transceivers
• Power supply requirement: Separate external 12V DC 115W universal AC adapter (100–240V AC mains input, 50/60Hz)
• Typical maximum power consumption: 19 W under dual combo Ethernet WAN + full 45W PoE LAN load
• Ingress protection: IP20, designed exclusively for dry indoor commercial office and telco wiring closet environments

Standard Commercial Environmental Specifications

• Operating temperature: 0°C ~ +40°C (32°F ~ 104°F); linear performance derating of 1.5°C per 1000 m altitude above 3000 m
• Storage temperature: -40°C ~ +70°C (-40°F ~ 158°F)
• Relative humidity: 10%–85% RH non-condensing
• Maximum operating altitude: 3,000 m (10,000 ft)

3. Hardware Acceleration & Security Engine

• Dedicated onboard crypto co-processor fully offloads IPsec, IKEv2 and SSL VPN encryption traffic, eliminating CPU bottlenecks under heavy concurrent site-to-site and remote access tunnel workloads
• Permanent integrated universal security license enables complete enterprise encryption suite: AES-128/192/256, 3DES, DES, SHA-1/SHA-2, IKEv1/IKEv2 static tunnels, Easy VPN remote access and DMVPN dynamic hub-spoke tunnels
• Native traffic isolation filters to segregate corporate staff LAN, PoE camera/VoIP IoT subnet and untrusted public internet via independent VLAN zoning to block lateral threat movement across dual Ethernet uplink paths
• Embedded Cisco Umbrella cloud security and Encrypted Traffic Analytics (ETA) for advanced threat detection over public fiber and copper broadband networksCisco

4. Cisco IOS XE Advanced Security & SD-WAN Feature Suite

Dual Multi-Media Combo Ethernet WAN Redundancy Routing

• Cisco Express Forwarding (CEF), static routing, RIPv1/v2, OSPF, EIGRP, BGP, GRE/MGRE tunnel encapsulation, complete IPv4/IPv6 dual-stack routing support
• Automatic policy-based dual-path failover logic across two independent combo fiber/copper Ethernet WAN ports via VRRP and continuous IP SLA circuit health validation
• Metro Ethernet 802.3ah E-LMI link fault monitoring for fiber/copper carrier SLA tracking and performance reporting
• Policy-Based Routing (PBR), multi-NAT pools, PAT overload for logical segmentation of mixed PoE-powered surveillance and voice endpoints
• DHCP server/relay/client, DNS proxy, dynamic DNS, IP SLA active link performance monitoring across both WAN paths

Unified Enterprise Threat Security Suite

• Zone-Based Stateful Inspection Firewall (ZBFW) to isolate internal corporate LAN, PoE device subnet, DMZ and untrusted public internet traffic zones with granular inter-zone access control policies
• Next-Generation Intrusion Prevention System (NGIPS), Cisco Umbrella cloud URL filtering, deep NBAR2 advanced application control for HTTP, FTP, IM, video conferencing and mainstream business workloads
• AAA authentication via TACACS+ / RADIUS, 802.1X port authentication supported on all four Gigabit LAN ports
• Secure management only: SSHv2, HTTPS, SNMPv3; plaintext Telnet disabled by factory default
• Granular access control lists (ACLs), static MAC address port lockdown on Gigabit switch ports, anti-spoofing and DDoS mitigation filters for inbound WAN traffic over both Ethernet uplinks

SD-WAN & Multi-Layer QoS Bandwidth Optimization

• Native Cisco SD-WAN integrated functionality for intelligent application-aware traffic steering across two independent combo fiber/copper fixed-line paths, with application-defined SLA policy enforcement for critical voice, low-density video surveillance and POS payment workloads
• WFQ, CBWFQ, LLQ low-latency queuing mechanisms for priority forwarding of real-time voice and small-scale camera video traffic over metered broadband circuits
• NBAR2 deep packet inspection to classify and prioritize bandwidth-heavy business workloads (cloud synchronization, small-scale video backhaul)
• RTP/TCP header compression, traffic shaping and policing to control leased-line bandwidth consumption and avoid carrier overage charges
• PoE QoS scheduling to guarantee consistent power and bandwidth priority for mission-critical PoE+ cameras and single-line VoIP handsets across the two powered LAN ports

Remote Management & Automation

• Cisco Zero-Touch Provisioning (ZTP) for mass standardized deployment of small retail branches and Metro Ethernet service provider managed micro CPE
• Cisco IOS Embedded Event Manager (EEM): Scriptable triggers for dual combo Ethernet WAN link loss, PoE power faults and USB storage events with email/SNMP alert notifications for remote IT operations staff
• SNMP v2c/v3, remote syslog logging, IP SLA end-to-end link performance telemetry, dedicated MIB extensions for dual multi-media WAN circuit status and PoE power consumption monitoring
• Compatible with Cisco Configuration Professional (CCP), Cisco DNA Center Lite and vManage SD-WAN controller for unified single-pane-of-glass remote monitoring of routing, security, PoE and dual multi-media WAN subsystems
• GOLD non-disruptive onboard diagnostics for continuous remote hardware health checks of dual combo SFP and copper Ethernet interfaces without service interruption

5. Typical Deployment Scenarios

1. Small Retail Micro-Branch Dual-Media Fiber-Copper PoE Secure Gateway
   Two independent combo SFP/RJ45 WAN ports deliver dual redundant fiber/copper Metro Ethernet uplinks for small retail POS transaction and single-camera surveillance traffic. Integrated 4-port mixed PoE/PoE+ LAN switch powers one POS terminal, one compact PoE+ security camera and two office desktop PCs without external PoE injectors. VLAN segmentation isolates sensitive payment infrastructure from staff LAN and public internet threats. Persistent encrypted IPsec DMVPN/SD-WAN tunnels transmit retail transaction data securely back to central corporate data centers, with zone firewall + NGIPS mitigating external cyber intrusion risks over public fiber and copper broadband networks.
2. Entry-Tier Metro Ethernet Service Provider Compact Business CPE
   Cost-effective high-performance compact hardware platform enables fiber ISPs to deliver dual redundant fiber-copper managed broadband services to micro enterprise subscribers requiring minimal PoE surveillance and voice endpoints. Centralized ZTP mass deployment and remote SNMP/vManage monitoring support bundled security and PoE networking service packages for micro SME market segments.
3. Remote Teleworker Small Office Dual-WAN SD-WAN Branch Router
   Dual multi-media combo WAN design allows fiber primary broadband for stable encrypted Easy VPN/SD-WAN connectivity to corporate headquarters; secondary combo copper line provides cost-effective backup for residential/rural circuit resilience. Mixed PoE/PoE+ LAN ports power home surveillance cameras and single-line VoIP equipment, full EIGRP/BGP routing support enables seamless multi-path traffic steering to core enterprise networks.
4. Campus Remote Low-Density IoT Surveillance PoE Edge Router
   Four LAN ports connect a small number of low-power IP cameras and building access control sensors; primary combo fiber WAN delivers high-bandwidth backhaul to campus core network, secondary combo copper GE uplink acts as emergency wired backup during fiber cut events, automatic SD-WAN failover maintains uninterrupted sensor data transmission.
5. Rural Converged Voice & Basic Security Compact Router
   Fanless low-noise compact design fits tiny residential wiring closets; dual redundant fiber/copper combo WAN paths eliminate single points of failure for basic unified communications and light surveillance workloads, built-in dedicated hardware encryption secures all inter-branch VPN communications over public fiber and copper broadband circuits.

6. Standard Package Contents of C1161-4P

Separately Sold Optional Accessories

• Micro-USB rollover console cable for local CLI configuration
• 12V 115W external universal AC power supply (mandatory operating accessory for full PoE functionality)
• 1G SFP fiber transceivers (SX/LX/T) for combo WAN fiber connectivity
• CAT4/CAT6 USB LTE cellular dongles for auxiliary tertiary wireless backup WAN
• USB flash storage drives for log archiving and offline configuration backup
• CAT5e/CAT6 Ethernet patch cords for four Gigabit LAN and dual combo GE WAN connections
• ACS-1100-RM2 19-inch rack mount kit for wiring cabinet deployment

Software Licensing Information

• Permanent integrated security & crypto license included; no additional purchase required for IPsec, AES encryption, zone firewall and NGIPS threat defense features
• All core routing, dual-media dual-combo WAN multi-path failover, PoE/PoE+ power management, QoS, native Cisco SD-WAN intelligent traffic steering, ZTP and 4-port Gigabit managed switch features are fully included in the base IOS XE universal image; no extra paid feature licenses needed
• No wireless AP or embedded cellular license applicable (WLAN radio and internal pluggable LTE PIM hardware are omitted from this pure fiber-ready compact low-port PoE SKU)

Short Commercial Catalog Summary for Quotation