Cisco 4431 Integrated Services Router

Series	Cisco 4000 Series Integrated Services Routers
Overview	Product Overview
Product Type	Branch Routers
Status	Available Order
Release Date	30-SEP-2014
Product ID
Primary PIDs for this product line: C1-CISCO4431/K9 ISR4351-SEC/K9 ISR4351-SEC/K9-WS ISR4431-AX/K9 ISR4431-AX/K9-RF ISR4431-AX/K9-WS ISR4431-AXV/K9 ISR4431-AXV/K9-RF ISR4431-AXV/K9-WS ISR4431-DNA ISR4431-DNA-RF ISR4431-PM20 ISR4431-SEC/K9 ISR4431-SEC/K9-RF ISR4431-SEC/K9-WS ISR4431-V/K9 ISR4431-V/K9-RF ISR4431-V/K9-WS ISR4431-VSEC/K9 ISR4431-VSEC/K9-RF ISR4431-VSEC/K9-WS ISR4431/K9 ISR4431/K9-RF ISR4431/K9-WS SI-ISR4431-IWAN/K9 Alternate PIDs for this product line: ACS-4430-BEZEL= ACS-4430-FANASSY ACS-4430-FANASSY= ACS-4430-RM-19= ACS-4430-RM-23= ACS-4430-WM= C-NIM-1M C-NIM-1M= C-NIM-2T C-NIM-2T= C1A2UISR4400SK9 C1A2UISR4400SK9= C1AUAISR4400SK9= C1AUUISR4400SK9 C1AUUISR4400SK9= C1F1AISR4431SK9 C1F1AISR4431SK9= C1F1UISR4400SK9 C1F1UISR4400SK9= C1F2UISR4431SK9 C1F2UISR4431SK9= E100S-MEM-UDIMM8G E100S-MEM-UDIMM8G= E100SMEMUDIMM8G-RF FL-44-HSEC-K9 FL-44-HSEC-K9= FL-44-PERF-K9 FL-44-PERF-K9= ISR4430U-MEM-SSD L-SL-44-SEC-K9= L-SP-LA-E-100-K9= L-SP-LA-E-1K-K9= L-SP-LA-E-2.5K-K9= L-SP-LA-E-25-K9= L-SP-LA-E-50-K9= L-SP-LA-E-500-K9= L-SP-LA-E-5K-K9= L-SP-LA-P-25-K9= L-SP-LA-U-100-K9= L-SP-LA-U-1K-K9= L-SP-LA-U-2.5K-K9= L-SP-LA-U-25-K9= L-SP-LA-U-50-K9= L-SP-LA-U-500-K9= L-SP-LA-U-5K-K9= L-SP-LA-W-100-K9= L-SP-LA-W-1K-K9= L-SP-LA-W-2.5K-K9= L-SP-LA-W-25-K9= L-SP-LA-W-50-K9= L-SP-LA-W-500-K9= L-SP-LA-W-5K-K9= MEM-44-4G MEM-4400-2G-RF MEM-4400-2G= MEM-4400-8G MEM-4400-8G-RF MEM-4400-8G= MEM-4400-DP-2GU4G MEM-FLSH-32G-RF MEM-FLSH-32G= MEM-FLSH-4G MEM-FLSH-4G= MEM-FLSH-4GU16G MEM-FLSH-4GU8G MEM-FLSH-4U16G MEM-FLSH-4U8G MEM-FLSH-8U16G NIM-1CE1T1-PRI NIM-1CE1T1-PRI-RF NIM-1CE1T1-PRI-WS NIM-1CE1T1-PRI= NIM-1MFT-T1/E1 NIM-1MFT-T1/E1++= NIM-1MFT-T1/E1-RF NIM-1MFT-T1/E1-WS NIM-1MFT-T1/E1= NIM-2BRI-NT/TE NIM-2BRI-NT/TE-RF NIM-2BRI-NT/TE-WS NIM-2BRI-NT/TE= NIM-2FXO NIM-2FXO-RF NIM-2FXO-WS NIM-2FXO= NIM-2FXS NIM-2FXS-RF NIM-2FXS-WS NIM-2FXS/4FXO NIM-2FXS/4FXO-RF NIM-2FXS/4FXO-WS NIM-2FXS/4FXO= NIM-2FXS= NIM-2GE-CU-SFP NIM-2GE-CU-SFP-RF NIM-2GE-CU-SFP-WS NIM-2GE-CU-SFP= NIM-2MFT-T1/E1 NIM-2MFT-T1/E1++= NIM-2MFT-T1/E1-RF NIM-2MFT-T1/E1-WS NIM-2MFT-T1/E1= NIM-4BRI-NT/TE NIM-4BRI-NT/TE-RF NIM-4BRI-NT/TE-WS NIM-4BRI-NT/TE= NIM-4E/M NIM-4E/M-RF NIM-4E/M-WS NIM-4E/M= NIM-4FXO NIM-4FXO-RF NIM-4FXO-WS NIM-4FXO= NIM-4FXS NIM-4FXS-RF NIM-4FXS-WS NIM-4FXS= NIM-4G-LTE-GA NIM-4G-LTE-GA-RF NIM-4G-LTE-GA-WS NIM-4G-LTE-GA= NIM-4G-LTE-LA NIM-4G-LTE-LA-RF NIM-4G-LTE-LA= NIM-4G-LTE-NA NIM-4G-LTE-NA-RF NIM-4G-LTE-NA-WS NIM-4G-LTE-NA= NIM-4G-LTE-ST NIM-4G-LTE-ST-RF NIM-4G-LTE-ST= NIM-4G-LTE-VZ NIM-4G-LTE-VZ= NIM-4MFT-T1/E1 NIM-4MFT-T1/E1++= NIM-4MFT-T1/E1-RF NIM-4MFT-T1/E1-WS NIM-4MFT-T1/E1= NIM-8MFT-T1/E1 NIM-8MFT-T1/E1++= NIM-8MFT-T1/E1-RF NIM-8MFT-T1/E1-WS NIM-8MFT-T1/E1= NIM-ES2-8-P NIM-ES2-8-P-RF NIM-ES2-8-P-WS NIM-ES2-8-P= NIM-LTEA-EA NIM-LTEA-EA-RF NIM-LTEA-EA= NIM-LTEA-LA NIM-LTEA-LA= NIM-PVDM-128 NIM-PVDM-128= NIM-PVDM-256 NIM-PVDM-256= NIM-PVDM-32 NIM-PVDM-32= NIM-PVDM-64 NIM-PVDM-64= NIM-SSD NIM-SSD-RF NIM-SSD-WS NIM-SSD-X NIM-SSD-X= NIM-SSD= NIM-VA-B NIM-VA-B-RF NIM-VA-B-WS NIM-VA-B= NIM-VAB-A NIM-VAB-A-RF NIM-VAB-A-WS NIM-VAB-A= NIM-VAB-M NIM-VAB-M-RF NIM-VAB-M= NIM-X-SSD NIM-X-SSD= NIMASYNC-BRA NIMASYNC-BRA= PVDM4-128 PVDM4-128++= PVDM4-128-RF PVDM4-128-WS PVDM4-128= PVDM4-256 PVDM4-256++= PVDM4-256-RF PVDM4-256-WS PVDM4-256= PVDM4-32 PVDM4-32++= PVDM4-32-RF PVDM4-32-WS PVDM4-32= PVDM4-32U256 PVDM4-32U256-RF PVDM4-64 PVDM4-64++= PVDM4-64-RF PVDM4-64-WS PVDM4-64= PWR-4430-AC PWR-4430-AC-RF PWR-4430-AC-WS PWR-4430-AC= PWR-4430-DC PWR-4430-DC-RF PWR-4430-DC-WS PWR-4430-DC/2 PWR-4430-DC= PWR-4430-POE-AC PWR-4430-POE-AC-RF PWR-4430-POE-AC= SISR4400NPEK9-312S SISR4400UK9-312S SM-X-16FXS/2FXO SM-X-16FXS/2FXO-RF SM-X-16FXS/2FXO-WS SM-X-16FXS/2FXO= SM-X-24FXS/4FXO SM-X-24FXS/4FXO= SM-X-72FXS SM-X-72FXS= SM-X-8FXS/12FXO SM-X-8FXS/12FXO= SM-X-NIM-ADPTR SM-X-NIM-ADPTR++= SM-X-NIM-ADPTR-RF SM-X-NIM-ADPTR-WS SM-X-NIM-ADPTR= SM-X-PVDM-1000 SM-X-PVDM-1000= SM-X-PVDM-2000 SM-X-PVDM-2000= SM-X-PVDM-3000 SM-X-PVDM-3000-RF SM-X-PVDM-3000= SM-X-PVDM-500 SM-X-PVDM-500-RF SM-X-PVDM-500= SSD-M2SATA-480G SSD-M2SATA-480G= SSD-MSATA-100G SSD-MSATA-100G= SSD-MSATA-200G SSD-MSATA-200G-RF SSD-MSATA-200G= SSD-MSATA-400G SSD-MSATA-400G= SSD-MSATA-50G SSD-MSATA-50G= SSD-SATA-200G SSD-SATA-200G-RF SSD-SATA-200G= SSD-SATA-400G SSD-SATA-400G-RF SSD-SATA-400G= SSD-SATA-800G SSD-SATA-800G=

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Recent Security Notices

10-Jan-2024
Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended
01-Nov-2023
Security Advisory: Multiple Cisco Products Snort FTP Inspection Bypass Vulnerability
05-Oct-2023
Field Notice: FN72323 - Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality - Software Upgrade Recommended
29-Sep-2023
Field Notice: FN72578 - Cisco IOS XE - Smart Licensing Using Policy Might Cause High CPU/Memory Usage - Software Upgrade Recommended
19-Jan-2022
Security Advisory: Multiple Cisco Products Snort Modbus Denial of Service Vulnerability

Document Categories

Data Sheets and Product Information
- At-a-Glance
  - Benefits of Upgrading to Cisco 4000 Series Integrated Services Routers 13-Nov-2019
  - Cisco 4000 Series Integrated Services Routers At-A-Glance 21-Oct-2021
  - KVM App Hosting on a Cisco Router 05-Mar-2020
- Data Sheets
- - Cisco SM-X Based Layer 2 Switching Module Data Sheet 01-Jun-2020
  - Cisco 4000 Series Integrated Services Router Packet-over-T3/E3 Service Module Data Sheet 07-Oct-2014
  - Cisco 4000 Series Integrated Services Router Gigabit Ethernet WAN Modules Data Sheet 17-Jul-2019
  - Cisco Multimode G.SHDSL Network Interface Module Data Sheet 27-Jun-2018
  - Asynchronous Terminal Server Interface Modules for Cisco 4000 Series Integrated Services Routers Data Sheet 04-Jan-2018
  - Cisco 4-Port, 8-Port, and 8-Port with PoE/PoE+ Gigabit Ethernet LAN Switch Network Interface Modules Data Sheet 30-Nov-2017
  - Cisco SM-X Layer 2/3 EtherSwitch Service Module 07-Oct-2014
  - Cisco LTE Advanced 3.0 Network Interface Modules Wireless WAN Interface Cards 05-Apr-2017
  - Cisco 4G LTE 2.0 Network Interface Modules 19-Oct-2016
  - Cisco 4G LTE 2.5 Network Interface Modules Wireless WAN Interface Cards for Asia, Australia, and Selected Latin America Regions 25-Apr-2017
  - Cisco 4400 Series Integrated Services Router 1-, 2 , and 4-Port Serial Network Interface Modules Data Sheet 02-Jul-2014
  - Cisco Multimode VDSL2 and ADSL2/2+ Network Interface Module Data Sheet 04-Aug-2015
  - Cisco 4000 Series Data Sheet 23-Oct-2017
- - Cisco 4000 Family Integrated Services Router Data Sheet 25-Aug-2021
  - Cisco Fourth-Generation 1-, 2-, 4-, and 8-Port T1/E1 Multiflex Trunk Voice/WAN Network Interface and Digital Signal Processor Modules FAQ 24-Feb-2015
  - Cisco 4451-X Integrated Services Router Ordering Guide Data Sheet 23-Oct-2014
- - Cisco Packet Voice Digital Signal Processor Modules (PVDMs) for Cisco Unified Communications Solutions 23-Nov-2020
  - Analog Voice Network Interface Modules for Cisco 4000 Series ISRs Data Sheet 16-May-2017
  - High-Density Analog Voice and Fax Service Modules for Cisco 4000 Series ISRs Data Sheet 18-Dec-2017
- End-of-Life and End-of-Sale Notices
  
  Most Recent
Security Notices
- Field Notices
- Security Advisories, Responses and Notices
  - Multiple Cisco Products Snort FTP Inspection Bypass Vulnerability 01-Nov-2023
  - Multiple Cisco Products Snort Modbus Denial of Service Vulnerability 19-Jan-2022
  - Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability 27-Oct-2021
  - Multiple Cisco Products Server Name Identification Data Exfiltration Vulnerability 18-Aug-2021
  - Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerabilities 28-Apr-2021
  - Multiple Cisco Products Snort Ethernet Frame Decoder Denial of Service Vulnerability 03-Mar-2021
  - Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability 13-Jan-2021
  - Multiple Cisco Products Snort TCP Fast Open File Policy Bypass Vulnerability 13-Jan-2021
  - Multiple Cisco Products Snort Application Detection Engine Policy Bypass Vulnerability 13-Jan-2021
  - Multiple Cisco Products SNORT HTTP Detection Engine File Policy Bypass Vulnerability 21-Oct-2020
  - Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability 06-May-2020
  - Cisco Secure Boot Hardware Tampering Vulnerability 13-May-2019
Release and Compatibility
- Release Notes
  
  Most Recent
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Bengaluru 17.6.x 04-Apr-2024
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Dublin 17.12.x 22-Mar-2024
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Cupertino 17.9.x 28-Feb-2024
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE 17.13.x 16-Dec-2023
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Amsterdam 17.3.x 28-Oct-2023
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Dublin 17.11.x 06-Apr-2023
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Dublin 17.10.x 16-Dec-2022
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Bengaluru 17.5.x 29-Jun-2022
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Bengaluru 17.4.x 29-Jun-2022
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Amsterdam 17.2.x 29-Jun-2022
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Cupertino 17.8.x 22-Apr-2022
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Cupertino 17.7.x 17-Dec-2021
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Amsterdam 17.1.x 30-Jul-2020
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Everest 16.6 25-Sep-2019
  - Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Fuji 16.9.x 25-Aug-2019
Reference
- Command References
  
  Most Recent
  - Cisco SD-Routing Command Reference 18-Dec-2023
  - Programmability Command Reference, Cisco IOS XE 17.13.x 08-Dec-2023
  - Cisco IOS Interface and Hardware Component Command Reference 05-Oct-2023
  - Programmability Command Reference, Cisco IOS XE Dublin 17.12.x 28-Jul-2023
  - Programmability Command Reference, Cisco IOS XE Dublin 17.11.x 28-Mar-2023
  - Programmability Command Reference, Cisco IOS XE Dublin 17.10.x 30-Nov-2022
  - Programmability Command Reference, Cisco IOS XE Cupertino 17.9.x 01-Aug-2022
  - Programmability Command Reference, Cisco IOS XE Cupertino 17.8.x 18-Apr-2022
  - Programmability Command Reference, Cisco IOS XE Cupertino 17.7.x 07-Dec-2021
  - Programmability Command Reference, Cisco IOS XE Bengaluru 17.6.x 04-Aug-2021
  - Programmability Command Reference, Cisco IOS XE Bengaluru 17.5.x 05-Apr-2021
  - Programmability Command Reference, Cisco IOS XE Bengaluru 17.4.x 29-Nov-2020
  - Cisco IOS Dynamic Application Policy Routing Command Reference 12-Aug-2020
  - Programmability Command Reference, Cisco IOS XE Amsterdam 17.2.x 30-Mar-2020
  - Programmability Command Reference, Cisco IOS XE Amsterdam 17.1.x 26-Nov-2019
- Documentation Roadmaps
  - Documentation Roadmap for Cisco 4000 Series ISRs, Cisco IOS XE Denali 16.x 29-Sep-2016
  - Documentation Roadmap for Cisco 4000 Series ISRs, Cisco IOS XE Denali 16.x 04-Aug-2016
  - Documentation Roadmap for the Cisco 4000 Series ISRs, Cisco IOS XE 3S 29-Sep-2016
  - Documentation Roadmap for the Cisco 4000 Series ISRs, Cisco IOS XE 3S 09-Oct-2014
- Licensing Information
  - Cisco_IOS_XE_Denali_16_3_v1 01-Aug-2016 (PDF - 785 KB)
  - Implement Performance License for Integrated Service Router 4000 16-Aug-2023
  - Open Source Used in Cisco 4221 ISR 11-Nov-2016 (PDF - 3 MB)
  - Open Source Used in Cisco IOS XE Denali Release 16.x 31-Mar-2016 (PDF - 780 KB)
  - Open Source Used in Web UI Cisco IOS XE 6.7.1 16-Nov-2017 (PDF - 750 KB)
  - Security and VPN Configuration Guide, Cisco IOS XE 17.x 11-Jan-2021
Design
- Design TechNotes
  - Understanding and Troubleshooting Analog E&M Interface Types and Wiring Arrangements 02-Feb-2006
Install and Upgrade
- Install and Upgrade Guides
  - Cisco Fourth-Generation LTE Advanced Network Interface Module Installation Guide 05-Dec-2016
  - Cisco Fourth-Generation LTE Network Interface Module Installation Guide 27-May-2015
  - Cisco VG450 Voice Gateway Hardware Installation Guide 19-Dec-2018
  - Cisco VG400 Voice Gateway Hardware Installation Guide 06-Dec-2018
  - Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers 10-Sep-2014
  - IP Addressing: NAT Configuration Guide, Cisco IOS XE Gibraltar 16.10.x 17-Apr-2020
  - Installing the Cisco G.SHDSL Network Interface Module 24-May-2018
  - Installing the Cisco VDSL2 and ADSL2/2+ Network Interface Modules 15-Feb-2016
  - Regulatory Compliance and Safety Information for Cisco 4000 Series Integrated Services Routers 19-Dec-2016
  - Regulatory Compliance and Safety Information—Cisco Voice Gateway 400 and Voice Gateway 450 16-Mar-2020 (PDF - 3 MB)
  - Regulatory Compliance and Safety Information—Safety Warnings for Cisco 4000 Series ISRsInformation sur la réglementation de la conformité et de sécurité—Safety Warnings for Cisco 4000 Series ISRs 10-Dec-2018 (PDF - 5 MB)
  - Upgrading Field-Programmable Hardware Devices for Cisco 4000 Series ISRs 18-May-2022
  - Upgrading Flash Memory for Cisco 4000 Series ISRs 01-Sep-2015
Configuration
- Configuration Examples and TechNotes
  - Configure Integrated Services Routers 4000 Series Digital Voice 09-Nov-2023
- Configuration Guides
  
  Most Recent
  - Network Services Configuration Guide, Cisco IOS XE 17.x 27-Mar-2024
  - Cisco 4000 Series ISRs Software Configuration Guide, Cisco IOS XE 17 15-Dec-2023
  - Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards 08-Dec-2023
  - Programmability Configuration Guide, Cisco IOS XE 17.13.x 08-Dec-2023
  - IP Switching Cisco Express Forwarding Configuration Guide, Cisco IOS XE Gibraltar 16.10.x 25-Oct-2023
  - Cisco ASR 1000 Series Modular Ethernet Line Card Software Configuration Guide, Cisco IOS XE Gibraltar 17.x 22-Aug-2023
  - System Management Configuration Guide, Cisco IOS XE 17.x 21-Aug-2023
  - Programmability Configuration Guide, Cisco IOS XE Dublin 17.12.x 28-Jul-2023
  - Programmability Configuration Guide, Cisco IOS XE Dublin 17.11.x 28-Mar-2023
  - LAN and WAN Configuration Guide, Cisco IOS XE 17.x 16-Dec-2022
  - High Availability Configuration Guide, Cisco IOS XE 17.x 16-Dec-2022
  - IP Mobility: PMIPv6 Configuration Guide, Cisco IOS XE 17.x 16-Dec-2022
  - MPLS Configuration Guide, Cisco IOS XE 17.x 16-Dec-2022
  - Programmability Configuration Guide, Cisco IOS XE Dublin 17.10.x 30-Nov-2022
  - SNMP Configuration Guide, Cisco IOS XE 17 16-Nov-2022
- Feature Guides
  - Cisco V.150.1 Minimum Essential Requirements Configuration Guide 29-Mar-2016
Maintain and Operate
- Maintain and Operate Guides
  - Instructions for Addressing the Cisco Secure Boot Hardware Tampering Vulnerability on Cisco ISR 4000 Series Routers 06-Aug-2019
  - Instructions for Addressing the Cisco Secure Boot Hardware Tampering Vulnerability on Cisco ISR 4000 Series Routers 28-Feb-2020
Troubleshooting
- Error and System Messages
  - System Message Guide for Access and Edge Routers, Cisco IOS XE Bengaluru 17.5.x 14-Jul-2021
  - System Message Guide for Cisco IOS XE Bengaluru 17.6.x 18-Aug-2021
  - System Message Guide for Cisco IOS XE Cupertino 17.9.x 01-Aug-2022
  - System Message Guide for Cisco IOS XE Cupertino 17.8.x 08-May-2022
  - System Message Guide for Cisco IOS XE Cupertino 17.7.x 17-Mar-2022
  - System Message Guide for Cisco IOS XE Dublin 17.12.x 28-Jul-2023
  - System Message Guide for Cisco IOS XE Dublin 17.11.x 14-Apr-2023
  - System Message Guide for Cisco IOS XE Dublin 17.10.x 04-Apr-2023
- Troubleshooting TechNotes
- - Troubleshoot Music On Hold Failure When Gateway is Integrated Service Router 4431 04-Jan-2018
Literature
- White Papers
  - Cisco 4000 Series Integrated Services Routers: Architecture for Branch-Office Agility 08-Oct-2014 (PDF - 971 KB)
  - Miercom Performance Analysis: Cisco 4000 Series ISRs 05-Jan-2017 (PDF - 878 KB)

Network interface modules (NIM)

Maximum switched Ethernet LAN ports with PoE

N/A

EtherSwitch Service Module type (width)

N/A

PoE support (wattage) without PoE boost

250 W (with optional power supply redundancy)

Intrusion prevention

Yes

Cisco Cloud Web Security

Yes

Form factor

1 RU

SSL VPN

Module online insertion and removal (OIR)

Yes

Power supply type

Internal; AC, PoE or DC

Maximum switched Ethernet ports

N/A

Hardware VPN acceleration (DES, 3DES, AES)

Redundant power supply

Yes - Internal RPS

Management port

1 GE (Integated Out of Band)

PoE support (wattage) with PoE boost

500 W (no power supply redundancy)

Integrated Services Card (ISC) slots

1 (PVDM 4)

Server virtualization platform (UCS E-Series)

N/A

Enhanced Services Module (SM-X)

N/A

Identity-based networking

Zone-based fiewall and NAT services

VRF-Aware Firewall and Network Address Translation (NAT)

USB Ports (type A)

Integrated WAN ports

2 PoE GE / SFP; 2 GE / SFP

Default/max DRAM

4 GB / 16 GB

Default/max Flash

8 GB / 32 GB

Performance

500 Mbps upgradeable to 1 Gbps

Cisco 4431 Integrated Services Router

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At-a-Glance

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Modules

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Unified Communications

End-of-Life and End-of-Sale Notices

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Cisco 4431 Integrated Services Router

Security Advisories, Responses and Notices

Release and Compatibility

Release Notes

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Reference

Command References

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Documentation Roadmaps

Licensing Information

Design

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Install and Upgrade

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Configuration

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Configuration Guides

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Maintain and Operate

Maintain and Operate Guides

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Error and System Messages

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Cisco 4431 Integrated Services Router

Literature

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