4331 - Router CISCO - Free user manual and instructions
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| Product Type | Router |
| Brand | Cisco |
| Model | 4331 |
| Dimensions (H x W x D) | 1.75 x 17.5 x 18.7 in (44.5 x 444.5 x 475 mm) |
| Weight | 22 lb (10 kg) |
| Power Supply | AC 100-240V, 350W |
| Built-in Ports | 4 x Gigabit Ethernet RJ45 |
| Expansion Slots | 2 x SFP, 2 x NIM, 1 x ISM |
| Maximum Throughput | 1 Gbps |
| Routing Protocols | IPv4, IPv6, OSPF, EIGRP, BGP |
| VPN Features | IPsec, SSL, DMVPN |
| Firewall | Zone-Based Policy Firewall |
| Quality of Service | Yes |
| Management | CLI, SNMP, Cisco IOS |
| Memory | 4 GB DRAM (default), expandable |
| Storage | 8 GB Flash (default) |
| Operating Temperature | 32 to 104°F (0 to 40°C) |
| Humidity | 10 to 85% non-condensing |
| Safety Standards | UL, CE, FCC |
| Maintenance | Keep vents clean; avoid moisture |
| Spare Parts Availability | Contact Cisco or authorized resellers |
Frequently Asked Questions - 4331 CISCO
How do I perform a factory reset on the Cisco 4331 router?
To factory reset, press and hold the Reset button on the front panel for 10 seconds, or use the
write erase command from the CLI.What is the default username and password for the Cisco 4331?
The default credentials are username: cisco and password: cisco. Change them immediately for security.
How can I upgrade the firmware on my Cisco 4331?
Download the latest IOS image from Cisco.com, copy it to flash via TFTP or SCP, then boot using
boot system flash: and reload.Can the Cisco 4331 handle VoIP traffic?
Yes, it supports voice services with optional PVDM modules and can handle up to 100 VoIP calls.
How do I reset the enable password if forgotten?
Use the password recovery procedure: power cycle the router, interrupt boot with Ctrl+Break, change the configuration register to 0x2142, boot, and reset the password.
What is the maximum number of VLANs supported?
The Cisco 4331 supports up to 1000 VLANs with IEEE 802.1Q tagging.
How do I configure a basic WAN connection?
Configure the interface with
interface GigabitEthernet0/0/0, assign an IP address, and set encapsulation as needed (e.g., PPP, HDLC).Is the Cisco 4331 rack-mountable?
Yes, it comes with rack-mount brackets and fits a standard 19-inch rack, occupying 1U of space.
What spare parts are commonly available?
Common spare parts include power supplies, fan modules, NIM modules, and SFP transceivers.
How do I clean the Cisco 4331?
Turn off the device, use a soft dry cloth to wipe the exterior. Do not use liquids or chemicals. Clean vents with compressed air.
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USER MANUAL 4331 CISCO
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Product information
Brand : CISCO
Model : 4331
Category : Router