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Data Sheet

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Updated:October 14, 2019

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Updated:October 14, 2019


Part of the Cisco® 1000 Series Integrated Services Routers (ISR), the ISR 1100-4G and ISR 1100-6G models are powered by the Viptela® operating system and combine WAN and comprehensive security in a wired high-performance platform. The ISR 1100-4G and 1100-6G combine an enterprise grade platform with best-in-class SD-WAN.

Cisco Software-Defined WAN (SD-WAN) is a cloud-first architecture that provides unparalleled visibility across your WAN, optimal connectivity for end users, and the most comprehensive security platform to protect your network. Cisco SD-WAN provides transport independence, rich network, and security services as well as endpoint flexibility.

The ISR 1100-4G and 1100-6G routers are delivered as platforms that sit at the perimeter of a site, such as a remote office, branch office, campus, or data center. They participate in establishing a secure virtual overlay network over a mix of any WAN transports.


Figure 1.           

ISR 1100-4G, front and back view


Figure 2.           

ISR 1100-6G, front view; back view same as ISR 1100-4G above

Primary features and benefits

Table 1.             Business benefits

Business need


Lightweight, compact size with low power consumption

  Can be deployed in many different environments where space, heat dissipation, and low power consumption are critical factors

High performance to run concurrent services

  High performance allows customers to take advantage of broadband network speeds while running secure, concurrent data, voice, video, and wireless services

High availability and business continuity

  Redundant WAN connections for failover protection and load balancing
  Dynamic failover protocols such as Virtual Router Redundancy Protocol (VRRP; RFC 2338)

Consistent, high application performance levels

  The router can run multiple services simultaneously with minimal performance degradation.
  Cisco SD-WAN delivers the best user experience over any connection.

Risk mitigation with multilevel security

  Data privacy through high-speed IP Security (IPsec) and Advanced Encryption Standard (AES) encryption
  Trustworthy systems and hardware anchor

Remote configuration and management to keep local IT staff lean

  Zero-touch provisioning with Cisco vManage Network Management System (NMS)
  Supports separate console port

Lower WAN expenditures

  Cisco SD-WAN powered by Viptela operating system with Overlay Management Protocol (OMP) support for optimized WAN connection as well as easy-to-use management solution with Cisco vManage

Pay as you grow: IPsec performance upgrade model

  Router IPsec capacity can be increased with a remote-performance, on-demand license upgrade (no hardware upgrade) for better CapEx budget management.

IT consolidation, space savings, and improved TCO

  Single converged branch platform integrates routing, security, and performance management capabilities.

Platform architecture and capabilities

Table 2.             Architectural highlights

Architectural feature


Multicore architecture

  Dedicated control plane for service reliability; multicore data plane for higher performance in ISR1100-6G

Integrated Gigabit Ethernet ports

  Provides up to four built-in 10/100/1000 Ethernet ports for WAN or LAN
  ISR1100-6G platform has an additional two Ethernet ports that can support Small Form-Factor Pluggable (SFP)-based connectivity in addition to RJ-45 connections, enabling fiber or copper connectivity.

Console access

  RJ45 console port supports management connectivity.

Flash memory support

  The 1100 Series routers ship with a fixed dual 16 MB serial flash memory.
  Bulk flash: 8 GB eMMC pSLC (usable storage: 5.8 G)
  USB type A 3.0 ports (4.5 W) provide capabilities for convenient storage.


  The ISR1100 Series comes with 4 GB fixed DDR4 ECC DRAM.

Embedded device security

  Cisco anticounterfeit functionality
  UEFI secure boot

Table 3.             Network management solutions

Operational phase



Networkwide deployment, configuration, monitoring, and troubleshooting

Cisco vManage

  Cisco SD-WAN automates application flexibility over multiple connections, such as the Internet and MPLS.
  Rich networking and security services are delivered with a few simple clicks. Deploy WAN optimization, cloud security, firewalling, IPS, and URL filtering across the SD-WAN fabric from a single location.
  Extend and manage SD-WAN fabric across physical or virtual platforms for branch, campus, data center, and cloud.

Table 4.             Embedded management capabilities



Cisco IP Service-Level Agreements

  App-aware routing based on SLAs and performance parameter polling

Simple Network Management Protocol (SNMP), Remote Monitoring (RMON), syslog, CFlowd, IP Flow Information Export (IPFix)

  Netconf over SSH, CLI, REST (vManage)

Table 5.             Software features and protocols




Open Shortest Path First (OSPF), Border Gateway Protocol (BGP), eBGP, iBGP, BGP Router Reflector, EIGRP for services, static, connected, OMP, 802.1Q, native VLAN, bridge domains, IRB, host-mode bridging, zero-trust, whitelisting, tamper-proof module, DTLS/TLS, IPSec, DDOS protection, control plane protection, classification, prioritization, low latency queuing, remarking, shaping, scheduling, policing, mirroring, IGMP v1/v2, PIM, Auto-RP, scale-out traffic replication, service advertisement and insertion policy, IPv4, SNMP, NTP, DNS client, Dynamic Host Configuration Protocol (DHCP), DHCP client, DHCP server, DHCP relay, config archival, syslog, SSH, SCP, Cflowd v10 IPFIX export, IPv6 for transport-side, VRRP, MPLS, symmetric NAT, static NAT, NAT pools, NAT64, NAT/PAT, NAT traversal, split DNS, TCP optimization, Access Control Lists (ACL)


Generic Routing Encapsulation (GRE), IPSec, Ethernet, 802.1q VLAN, CHAP/PAP for PPP over Ethernet (PPPoE)

Traffic management

Quality of Service (QoS), COS marking, app-aware routing, Weighted Random Early Detection (WRED), loss/latency and jitter monitoring, route policies, app-aware routing, control policy, data policy, ACL policy, VPN membership policy, multi-VRF support, Performance Routing (PfR)

Netconf over SSH, CLI, REST (vManage), Linux shell, ZBFs (Zone-Based Firewalls)

Cryptographic algorithms

Encryption: AES-256 (in CBC and GCM modes), Internet Key Exchange (IKE), Cisco PKI

Authentication: Authentication, Authorization, and Accounting (AAA), RSA (2048 bit), Integrated QAT, ESP-256-CBC, Authentication Header, HMAC-SHA1, ECDSA (256/384 bit); Integrity: HMAC-MD5, SHA-1, SHA-2

System specifications

Table 6.            ISR 1100 Series system specifications



Memory (default and maximum)


Flash: 8 GB (5.8 GB usable)


  Cisco RJ45 Console port

Authentication and security

  Local, role-based access control

External power supply

Product power specifications:

  External Adapter: 30W 341-100891-01
  AC input voltage: Universal 100 to 240 VAC
  Frequency: 50 to 60 Hz
  Maximum output power: 30W
  Output voltage: +12VDC for system power

USB 3.0

  USB devices supported:
   USB flash memory
  Note: Supported USB 3.0 devices to be connected externally. View the USB Device Support Data Sheet.


  System status: off = no power, green steady on = normal operation, amber steady on = system going down/fault, amber blink = boot up phase
  OMP Status: Green steady on = Connection is up, Off = Connection is down
  1x green per Ethernet; off = no link, steady on = link connected, blink = traffic flowing
  SIM: green; off = no SIM, steady on = SIM present, blink: traffic flowing
  1x green per SFP

Physical dimensions (W x D x H)

  10.2 x 7 x 1.1 in (259 x 178 x 28 mm)


  2.64 lbs (1.08 kg)

Standard safety certifications

  UL 60950-1, second edition
  CAN/CSA C22.2 No. 60950-1, second edition
  EN 60950-1, second edition
  CB to IEC 60950-1, second edition with all group differences and national deviations
  AS/NZS 60950.1:2011
  IEC-62368 (CB and UL/CSA)

EMC emissions

  EN55022/CISPR22, CFR 47 Part 15, ICES003, VCCI-V-3, AS/NZS CISPR22, CNS13438, EN300-386, EN61000-3-2, EN61000-3-3, KN22, TCVN 7189, and EN61000-6-1

EMC immunity

  EN55024/CISPR24, (EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5, EN61000-4-6, EN61000-4-11), EN61000-6-1, KN24, TCVN 7317, and EN300-386

Environmental operating range

  Operating temperature: 0 to 40°C (32 to 104°F) at sea level (temperature derating of 1.5°C per 1000 feet of altitude applicable up to max of 10,000 feet or 3000 m)
  Operating altitude: Maximum 10,000 ft (3000 m) with 1°C derating per 1000 ft
  Operating humidity: 0 to 95% relative humidity noncondensing

Cisco IOS software licensing and packaging

Cisco SD-WAN software image

A single Cisco SD-WAN operating system encompassing all functions is delivered with the platform. Advanced features can be enabled simply by activating a software license on the image. Licensing simplifies software delivery and decreases the operational costs of deploying new features.

Table 7.             Product part numbers and software images

Product part number


Router software images


Viptela-OS versions 19.2.0 and later

Network Licenses


Network Plug-n-Play License for zero-touch device deployment

Table 8.            List of Small Form-Factor Pluggables supported with ISR 1100 Series

Small Form-Factor Pluggable

ISR 1100-6G




Pluggable transceiver - 1GE BaseT 10/100/1000



Small form-factor pluggable transceiver - 1GE LX



Small form-factor pluggable transceiver - 1GE SX

For the Cisco ISR 1100-4G/6G Routers Hardware and Software Configuration Guide, go to:



Cisco and partner services

Services from Cisco and our certified partners can help you reduce the cost and complexity of branch-office deployments. Cisco Smart Net Total Care® technical support for the Cisco ISR 1000 Series is available on a one-time or annual contract basis. Support options range from help-desk assistance to proactive, onsite consultation.

For more information, visit https://www.cisco.com/go/services.

Ordering information

To place an order, visit the Cisco Ordering Home Page. To download software, visit the Cisco Software Center.

Cisco environmental sustainability

Information about Cisco’s environmental sustainability policies and initiatives for our products, solutions, operations, and extended operations or supply chain is provided in the “Environment Sustainability” section of Cisco’s Corporate Social Responsibility (CSR) Report.

Reference links to information about key environmental sustainability topics (mentioned in the “Environment Sustainability” section of the CSR Report) are provided in the following table:

Sustainability topic


Information on product material content laws and regulations


Information on electronic waste laws and regulations, including products, batteries, and packaging

WEEE compliance

Cisco makes the packaging data available for informational purposes only. It may not reflect the most current legal developments, and Cisco does not represent, warrant, or guarantee that it is complete, accurate, or up to date. This information is subject to change without notice.

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For more information

For more information about ISR 1000 Series routers, visit https://www.cisco.com/go/ISR1000 or contact your local Cisco account representative.

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