Juniper Networks IDP250, IDP8200, IDP 800 Proxy-ARP Mode, IDP High Availability Deployment Modes

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IDP 75, 250, 800, and 8200 Installation Guide

Proxy-ARP Mode

Figure 23 shows a sensor that is configured in bridge mode. Table 16 lists the advantages and disadvantages of bridge mode.

Figure 23: Proxy-ARP Mode

 

Internet

 

 

Firewall

 

Hub or

IP 2.2.2.1

Switch

 

 

 

 

 

 

IP 1.1.1.1

 

 

 

eth2

 

 

 

IP 1.1.1.254

 

 

IDP Sensor

Forwarding Interface

Management Server

 

 

 

 

 

 

IP 2.2.2.4

eth0 IP 2.2.2.7

eth3

 

 

MGT Interface

IP 1.1.1.5

 

 

 

Forwarding Interface

 

Hub or

 

 

Switch

 

 

 

 

 

User Interface

 

 

 

IP 2.2.2.5

Server1

Server2

Server3

 

IP 1.1.1.2

IP 1.1.1.3

IP 1.1.1.4

 

GW 1.1.1.1

GW 1.1.1.1

GW 1.1.1.1

 

 

Protected Machines

 

 

Table 16: Advantages and Disadvantages of Proxy-ARP Mode

Advantages

Disadvantages

 

 

„ Reliably responds to and prevents

„ Network nodes may need to update

attacks

cached ARP entries

„Simple, transparent deployment

IDP High Availability Deployment Modes

You must deploy the IDP sensors in bridge, router, transparent, or proxy-ARP mode to enable a high availability solution.For details on deployment modes and HA clusters, see the NetScreen-Security Manager Administrator’s Guide.

46„ IDP High Availability Deployment Modes

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Contents Releases 4.1r2a April Copyright Notice Table of Contents Chapter Adding the Sensor to NSM Index Page Sniffer Mode Passive List of FiguresPage List of Tables Page About This Guide AudienceConventions Icon Meaning DescriptionWeb Access for Documentation DocumentationRequesting Technical Support Self-Help Online Tools and Resources Opening a Case with JtacPage Planning an Installation Installation RoadmapIDP Configuration Basics IDP Sensor PlacementIDP Sensor Deployment Mode Sniffer Mode Passive Advantages and Disadvantages of Sniffer Mode Passive Transparent Mode Inline ActiveNetScreen-Security Manager Page Hardware Overview IDP SensorsIDP 75 Sensor IDP 250 SensorIDP 800 Sensor IDP 8200 Sensor IDP 800 Front PanelConfigurable NIC States Traffic Ports Forwarding InterfacesSettings Modes Availability Description Normal StateNIC Bypass State NIC State OptionsNIC Bypass and Cable Choices External Bypass Unit StateNICs Off State Power Supplies Management PortsConsole Serial Port Management PortIDP Sensor Power Supplies IDP Sensor LEDsSystem Status LEDs Management and High Availability Port LEDsTraffic Port LEDs Hard Drive LEDs on Front PanelPower Supply LEDs on Back Panel Power Supply LED Definitions Back Panel LED DescriptionHard Drive LED Definitions Front Panel LED Description Installing the Sensor General Installation GuidelinesMounting Using Device Rack Rails Rack Mounting the IDP SensorRequired Tools Mounting Using Midmount Brackets Rail with Hinged Rear BracketConnecting Power RU Device IDP 75 Midmount BracketConfiguring the IDP Sensor Initial Configuration OptionsSimple Configuration Simple Configuration SettingsSimple Configuration Values Advanced ConfigurationConnecting to the Sensor Using the Console Serial Port to Configure the SensorType an IP address and press Enter Following text appears Using the Management Port to Configure the Sensor Connecting Directly Using the Management PortConnecting Remotely Using the Management Port Simple or Advanced Configuration Using the Management PortQuickStart Simple Configuration ACM Advanced ConfigurationManager Administrator’s Guide Connecting Forwarding Interfaces Connecting the High Availability PortVerifying Traffic Flow Adding the Sensor to NSM Adding Your Sensor to NSMSelect Device is Reachable default Add Device Wizard Connection Settings Type ssh-keygen -l -f sshhostdsakey and press Enter Checking the Status of Your Sensor Add Device Wizard Importing the DevicePage Updating IDP Sensor Software Using NSM Firmware Manager Updating Software on the SensorLoading a Sensor Image into NSM Upgrading Sensor Software Updating IDP Sensor Software Without NSMReimaging the IDP Sensor Page Replacing a Power Supply IDP 800, and 8200 Only Remove a Power SupplyServicing the Device Install a Power Supply Replacing a Hard Drive IDP 800 and 8200 OnlyRemove a Hard Drive Install a Hard Drive Hard Drive Latch in Closed PositionPage Advanced Configuration Bridge ModeAdvanced Deployment Modes Bridge Mode Advantages and Disadvantages of Bridge ModeRouter Mode Advantages and Disadvantages of Router ModeProxy-ARP Mode Advantages and Disadvantages of Proxy-ARP ModeIDP High Availability Deployment Modes Specifications IDP 75 Technical Specifications Physical Specifications ValueAC Power Specifications Nominal Value Acceptable Range Power Cord Specifications CountryIDP 250 Technical Specifications Environmental SpecificationsSpecification Value IDP 800 Technical Specifications IDP 8200 Technical Specifications Safety Compliance EMI ComplianceImmunity Index ACMIDP 75, 250, 800, and 8200 Installation Guide 54 „ Index
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IDP75, IDP 800, IDP8200, IDP250 specifications

Juniper Networks IDP250 is a robust Intrusion Detection and Prevention system designed to provide comprehensive security for enterprise networks. This device plays a crucial role in safeguarding sensitive data and maintaining the integrity of network infrastructures against the ever-evolving landscape of cyber threats.

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