What is the default IP address for Cisco Cisco ISR 4321?

The factory default IP address for Cisco Cisco ISR 4321 is http://192.168.1.1.

What is the default username and password for Cisco Cisco ISR 4321?

The default username is "cisco" and the default password is "cisco".

How do I factory reset the Cisco Cisco ISR 4321?

Locate the small Reset pinhole on the back panel of the Cisco Cisco ISR 4321. Press and hold it with a paperclip for 10-15 seconds while powered on until the LED lights cycle.

Cisco Enterprise Core N/A (Wired Gateway) Enterprise Modular Branch Router

Cisco Cisco ISR 4321

Enterprise branch office voice, routing, and SD-WAN integration

Open http://192.168.1.1 ↗

Illustration, not a product photo

Gateway IP

192.168.1.1

Factory Username

cisco

Factory Password

cisco

Technical specifications

ISR 4000 Series

Manufacturer	Cisco
Product Series	ISR 4000 Series
Device Class / Category	Enterprise Core
Wireless Standard	N/A (Wired Gateway)
Speed Rating	Enterprise Modular Branch Router
Ethernet & Fiber Ports	2x 1G RJ45/SFP Combo Ports, 2x NIM Slots, 1x ISC Slot, Console & Aux
Routing / Firewall Throughput	100 Mbps - 300 Mbps Performance
Default Gateway URL	http://192.168.1.1 ↗
Operating System / Firmware	Cisco IOS XE

How to log in to your Cisco Cisco ISR 4321

1 Connect Your Device: Plug your PC into any LAN port on the Cisco Cisco ISR 4321 using an Ethernet cable, or connect to the default Wi-Fi SSID printed on the router label.
2 Navigate to Gateway IP: Launch your web browser and enter http://192.168.1.1 into the address bar.
3 Enter Factory Credentials: Enter username "cisco" and password "cisco", then click Login.
4 Configure Security & Password: Follow the on-screen Quick Setup wizard to customize your Wi-Fi SSID, set WPA3/WPA2-AES encryption, and establish a new master administrator password.

Related Cisco models

Catalyst 8300 (C8300-1N1S-4T2X)

Enterprise Core 192.168.1.1

Catalyst 8200 (C8200-1N-4T)

SMB Router 192.168.1.1

ISR 1100 (C1111-8P)

SMB Router 192.168.1.1

ISR 4331 (ISR4331/K9)

Enterprise Core 192.168.1.1

Meraki MX68

SMB Router 192.168.1.1

Meraki MX85

Enterprise Core 192.168.1.1

🔗 Universal Router Directory Network

Explore Gateway IPs, Router Brands & Utilities

All Brands All IPs

Popular Gateway IP Addresses

12 of 90

192.168.1.1 Guide → 192.168.0.1 Guide → 192.168.2.1 Guide → 192.168.1.254 Guide → 10.0.0.1 Guide → 192.168.29.1 Guide → 192.168.178.1 Guide → 192.168.31.1 Guide → 192.168.8.1 Guide → 192.168.100.1 Guide → 192.168.88.1 Guide → 192.168.18.1 Guide →

View all 90 gateway IPs

Top Router Manufacturers

10 of 836

MikroTik 192.168.88.1

Browse all 836 brands

Network Tools & Databases

8 tools

🔍

MAC Address Lookup

Identify Hardware OUI

Fast & Secure Resolvers

Fiber Broadband ISPs & ONT Modems

12 of 91

JioFiber 192.168.29.1 Airtel Xstream Fiber 192.168.1.1 BSNL FTTH Bharat Fiber 192.168.1.1 ACT Fibernet 192.168.1.1 Tata Play Fiber 192.168.1.1 AT&T Fiber 192.168.1.254 Xfinity Comcast 10.0.0.1 Verizon Fios 192.168.1.1 Spectrum Internet 192.168.1.1 Virgin Media UK 192.168.0.1 BT Broadband UK 192.168.1.254 Telstra Broadband Australia 192.168.0.1

View all 91 ISP guides

Frequently asked questions

What is the default login for Cisco Cisco ISR 4321?

The default IP address is http://192.168.1.1, default username is "cisco", and default password is "cisco".

What ports and speeds does Cisco Cisco ISR 4321 support?

The Cisco Cisco ISR 4321 is equipped with 2x 1G RJ45/SFP Combo Ports, 2x NIM Slots, 1x ISC Slot, Console & Aux with an overall speed rating of Enterprise Modular Branch Router.

How do I reset my Cisco Cisco ISR 4321 to factory settings?

Press and hold the physical Reset button on the Cisco Cisco ISR 4321 for 10 to 15 seconds until the power LED blinks, resetting all settings to factory default.