Cooper Bussmann BU-945U-E 802.11 DSSS Dhcp Server Configuration, DNS Server Configuration

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Cooper Bussmann Wireless Ethernet & Device Server BU-945U-E 802.11 DSSS User Manual

3.9 DHCP Server Configuration

The BU-945U-E is able to act as a DHCP server, supplying IP addresses automatically to other DHCP Client devices. Note that the BU-945U-E units need to act in conjunction with their connected devices. If a connected device is a DHCP server, the local and remote BU-945U-E units can be configured as DHCP Clients and receive IP addresses from the server device. Similarly, if a BU-945U-E is configured as a DHCP server, it can provide IP addresses to DHCP Clients, both BU-945U-E units as well as other connected devices. Configuration items for the DHCP Server are listed below.

Enabled

Tick this box to enable the DHCP Server

IP Range Minimum / Maximum

The DHCP Server will assign IP addresses to DHCP Clients from within this range of addresses.

Gateway/Primary DNS / Secondary DNS

These Settings are common to all of the DHCP Clients, and refer to the gateway address, and

 

Domain Name Service (DNS) Configuration

Lease Time

This is the number of seconds the client is granted the assigned IP address.

 

The client should renew its lease within this time.

3.10 DNS Server Configuration

DNS (Domain Name Service) allows devices to be given human-readable names in additions to their IP address. This makes identification of devices (hosts) simpler, and makes it possible to identify devices which have been automatically assigned their IP address by a DHCP server (See section 3.8 “DHCP Server Configuration”). DNS is the system which translates internet names (such as www.cooperbussmann.com) to IP Addresses. The Cooper Bussmann BU-945U-E can act as a DNS Server for a local network. Name to IP address mapping are automatically updated by the built in DHCP server when it issues an IP address to a client unit.

For the DNS Server configuration to be effective, Each DNS Client must be configured with the address of this DNS server, as either the primary or secondary DNS (secondary DNS is only used if there is no response from the primary DNS). Normally, this is done by setting the primary DNS field of the DHCP server configuration to the wireless IP address. This address is then provided to client units to use as their primary DNS server address when the DHCP server issues an IP address. The DNS Server is configured using the following settings.

Enabled

Tick this box to enable the DNS Server

Domain Name

This is a common suffix applied to the name of each device in the network. If your network is part of a

 

larger network, this would be assigned to you by the relevant naming authority. If your network is stand-alone,

 

this field is set to an arbitrary name of your choice.

Device Name (Host Name)

This is the DNS name of the local device. (Commonly referred to as the host name or computer name). This

 

setting is duplicated on the main Module Information configuration page. This is the name which is used to

 

refer to this device. (Refer Section 3.17 “Module Information Configuration”)

3.11 Spanning Tree Algorithm / Redundancy

The bridge “Spanning Tree Protocol” function was introduced to handle network loops and provide redundant paths in networks. To enable tick the STP box on any “WDS Connections” you have configured on the “Repeaters” configuration page.

For example, consider this network with a redundant wireless link. If the bridge Spanning Tree Protocol is enabled, one of the two wireless links will be disabled - that is, all wireless data will be transferred by one link only. If the active link fails, the other link will automatically start transferring the wireless data.

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Contents Read Retain FCC Notice Cooper Bussmann Application EngineeringPhone 800 a.m 500 p.m. Central, M-F 636 Fax 636 GNU Free Documentation License Important NoticeCooper Bussmann Contents Access Point vs Client BU-945U-E 802.11 630mW max powerNetwork Topology 3A1582Rev1.6 Bridge vs. Router Getting Started Quickly General Antenna InstallationAntennas Bench test and Demo System SetupPlant and Factory Installations Line-of-sight installationsOmni-directional Antennas Installation tipsRS232 Serial Port Power SupplySerial Connections Directional AntennasRS485 Serial Port DB9 Connector Pinouts3A1582Rev1.6 Discrete Digital Input/Output Start-up LED Indication Selecting a Channel802.11 900 MHz Channels 3A1582Rev1.6 Data Throughput Based on Repeater Hops Radio ThroughputDefault Configuration Configuring the Unit for the First TimeAccessing Configuration for the First Time For local addresses Power up the BU-945U-E moduleEnter the username user and default password user Method 1 Set PC to same network as BU-945U-E3A1582Rev1.6 Quick Start Quick Start ConfigurationNetwork Configuration Save Changes and Reset Dhcp Server Configuration, Default is uncheckedWireless ports will have the same IP address Configured Essid of the clientEncryption keys must not be all zeros, i.e Security Menu3A1582Rev1.6 Router Operation Radio ConfigurationNormal Operation Transparent Bridge OperationAccess point Bands Default is AutoSignal quality, etc Drop back to non-bursting modeChannel Selection Dhcp Client ConfigurationRadio Mode BU-945U-E Only Supports the 802.11 Standard Default distance is 20kmDNS Server Configuration Dhcp Server ConfigurationSpanning Tree Algorithm / Redundancy Multiple AP Repeater Mesh Network 3A1582Rev1.6 Site B WDS Configuration Example Extending range using WDSExample Adding Redundancy Example Roaming with WDS Access Points3A1582Rev1.6 Example WDS Routed Network Mouse, to highlight the entire row WDS Connections Routing RulesSTP Specifies a destination host Wireless Message FilteringInformation at a later time 3A1582Rev1.6 IP Address Filter Configuration MAC Address Filter ConfigurationUtilize the radio link. All other devices are blocked ARP Filter Configuration RS-232 PPP Server Serial Port ConfigurationSerial Gateway Modbus Modbus RTU to TCP Serial Gateway Server/Client/MulticastSerial Menu Modbus TCP to RTU GatewayMulticast Pipe Manager To be the same on all communicating Multicast devices Digital Input/OutputPort on the Client, i.e., Scada, DCS, etc Multicast Group IP AddressModbus I/O Transfer 3A1582Rev1.6 Modbus TCP Configuration on I/O Transfer Menu Modbus TCP Client Mappings on I/O Transfer Menu Module Information ConfigurationModule Information Webpage Fields System Tools Remote ConfigurationSetting a BU-945U-E to Factory Default Settings Configuration ExamplesExtending a Wired Network Client 2 Configuration Client 1 ConfigurationLAN B Configuration Client Configuration Access Point ConfigurationExtending Range of a Network with a Repeater Hop RED Continuously Diagnostics ChartBoot Status LED Indication during Start-up LED Indicator Condition MeaningSite Survey Diagnostic Information AvailableConnectivity Connectivity ParametersNetwork Traffic Analysis Statistics5014 STA Only Internal Diagnostic Modbus Registers9999 Both Reset module enter Ffff to reset module Connection InformationStatistic Registers Utilities Testing Radio PathsPing 3A1582Rev1.6 Arp IpconfigRoute Serial Ports Power SupplyGeneral Radio TransceiverInput / Output status System ParametersAppendix a Firmware Upgrades Web-Based UpgradeDhcp ACKCSMA/CA CSMA/CDIPX-SPX IeeeISN SSL SNRNAT NICWEP VoIPVPN WANDBm to mW Conversion Materials InstallationIperf Applications 3A1582Rev1.6 JPerf Application 3A1582Rev1.6 Terms and Conditions Preamble3A1582Rev1.6 No Warranty 3A1582Rev1.6 Customer Assistance
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