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NETGEAR M4100 Series User Manual

NETGEAR M4100 Series
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Configure Switching Information
165
M4100 Series Managed Switch
The default IP address of the switch is 169.254.100.100.
The Login screen displays.
5. Enter the user name and password.
The default admin user name is admin and the default admin password is blank, that is,
do not enter a password.
6. Click the Login button.
The web management interface menu displays.
7. Select Switching > Multicast > MFDB
MFDB Statistics.
IGMP Snooping Overview
Internet Group Management Protocol (IGMP) snooping is a feature that allows a switch to
forward multicast traffic intelligently on the switch. Multicast IP traffic is traffic that is destined
to a host group. Host groups are identified by class D IP addresses, which range from
224.0.0.0 to 239.255.255.255. Based on the IGMP query and report messages, the switch
forwards traf
fic only to the ports that request the multicast traffic. This prevents the switch
from broadcasting the traffic to all ports and possibly affecting network performance.
A traditional Ethernet network can be separated into different network segments to prevent
placing too many devices onto the same shared media. Bridges and switches connect these
segments. When a packet with a broadcast or multicast destination address is received, the
switch forwards a copy into each of the remaining network segments in accordance with the
IEEE MAC Bridge standard. Eventually
, the packet is made accessible to all nodes
connected to the network.
This approach works well for broadcast packets that are intended to be seen or processed by
all connected nodes. In the case of multicast packets, however
, this approach could lead to
less efficient use of network bandwidth, particularly when the packet is intended for only a
small number of nodes. Packets are flooded into network segments where no node has any
interest in receiving the packet. While nodes rarely incur any processing overhead to filter
packets addressed to unrequested group addresses, they are unable to transmit new
packets onto the shared media for the period of time that the multicast packet is flooded. The
problem of wasting bandwidth is even worse when the LAN segment is not shared, for
example, in full-duplex links.

Table of Contents

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Questions and Answers:

NETGEAR M4100 Series Specifications

General IconGeneral
ModelM4100 Series
Switch TypeManaged
Form FactorRack-mountable
Port Configuration24 or 48 ports
Ethernet Ports10/100/1000 Mbps
PoE SupportAvailable on some models (PoE and PoE+)
LayerLayer 2/Layer 3
ManagementWeb-based, CLI, SNMP
VLAN SupportYes
QoSYes
StackableYes
Ports24 or 48
Jumbo Frame SupportYes
Security FeaturesACL, 802.1X, RADIUS, TACACS+
Operating Temperature0° to 50° C (32° to 122° F)
Storage Temperature-20° to 70° C (-4° to 158° F)
Power SupplyInternal power supply

Summary

Get Started

Online Help

Access context-sensitive help within the switch's web interface for configuration assistance.

Web Management Interface Overview

Learn about the web-based interface for managing switch functions and features remotely.

Using SNMP

Configure SNMP groups and users for managing network devices and traps generated by the SNMP agent.

Configure System Information

System Configuration

Perform initial system configuration, including setting admin passwords and system identification details.

Define System Information

Define key system information like System Name, Location, and Contact for identification.

View Switch Statistics

Monitor switch performance by viewing statistics like packets received, transmitted, and errors.

Configure DHCP Server

Enable and configure the DHCP server, including pool settings and address exclusions for IP address assignment.

Configure Switching Information

VLAN Overview

Understand how VLANs segment networks, improve security, and manage traffic efficiently.

Configure VLAN Trunking

Configure switch port modes (Access, General, Trunk) to define port behavior for VLAN traffic.

Spanning Tree Protocol Overview

Learn how STP prevents network loops by providing a tree topology and ensuring single paths.

Configure IGMP Snooping Interface Settings

Configure IGMP snooping settings on specific interfaces to intelligently forward multicast traffic.

Routing

Manage the Routing Table

Configure static and local routes, defining network addresses, subnet masks, and next hop IP addresses.

Configure IP Settings

Configure routing parameters for the switch, including IP configuration, routing mode, and ICMP settings.

ARP Overview

Understand the Address Resolution Protocol (ARP) for translating IP addresses to MAC addresses.

Configure Quality of Service

QoS Overview

Understand Quality of Service settings for prioritizing and managing network traffic based on strict timing requirements.

Class of Service

Configure CoS queueing behavior, trust modes, and mapping tables for prioritizing different traffic types.

Differentiated Services (DiffServ)

Implement DiffServ for traffic classification, policy creation, and applying QoS treatment based on per-hop behaviors.

Configure DiffServ Policy

Associate traffic classes with policy statements and apply policies to interfaces for traffic conditioning.

Manage Device Security

Management Security Settings

Configure login password, RADIUS, TACACS, and authentication lists for secure device management access.

Configure RADIUS Settings

Set up RADIUS servers for centralized user authentication for web access and 802.1X.

Configure Port Security Settings

Implement port security by defining allowable MAC addresses to prevent unauthorized access on switch ports.

Access Control List Overview

Understand how ACLs control network access, manage traffic flow, and enhance security by defining packet-matching criteria.

Monitoring the System

View Port Statistics

View summarized per-port traffic statistics, including packets received, transmitted, and errors.

Logs Overview

Access system messages for events, faults, and configuration changes, with options for buffered, persistent, and console logs.

sFlow Overview

Configure sFlow agent information, receivers, and interfaces for network traffic monitoring and analysis.

Maintenance

Save Configuration

Save the current switch configuration to retain changes across reboots and power cycles.

Reboot a Switch

Perform a switch reboot, with options to save the current configuration before restarting.

Upload Files

Transfer files from the switch to a TFTP server or upload files from a USB device.

Configuration Examples

Virtual Local Area Networks

Learn how to configure VLANs, port membership, and tagged/untagged traffic for network segmentation.

802.1X Sample Configuration

Implement 802.1X-based port security requiring authentication for network access via a RADIUS server.

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