BCM Rls 6.0 DHCP. Task Based Guide

Transcription

1 BCM Rls 6.0 DHCP Task Based Guide

2 Copyright 2010 Avaya Inc. All Rights Reserved. Notices While reasonable efforts have been made to ensure that the information in this document is complete and accurate at the time of printing, Avaya assumes no liability for any errors. Avaya reserves the right to make changes and corrections to the information in this document without the obligation to notify any person or organization of such changes. Documentation disclaimer Avaya shall not be responsible for any modifications, additions, or deletions to the original published version of this documentation unless such modifications, additions, or deletions were performed by Avaya. End User agree to indemnify and hold harmless Avaya, Avaya s agents, servants and employees against all claims, lawsuits, demands and judgments arising out of, or in connection with, subsequent modifications, additions or deletions to this documentation, to the extent made by End User. 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3 Downloading documents For the most current versions of documentation, see the Avaya Support. Web site: Contact Avaya Support Avaya provides a telephone number for you to use to report problems or to ask questions about your product. The support telephone number is in the United States. For additional support telephone numbers, see the Avaya Web site: Copyright 2010 ITEL, All Rights Reserved The copyright in the material belongs to ITEL and no part of the material may be reproduced in any form without the prior written permission of a duly authorised representative of ITEL. NN Issue 1.2 BCM Rls 6.0 3

4 Table of Contents DHCP Server... 5 Overview... 5 DHCP and the BCM... 5 DHCP Modes... 5 Address Range... 6 Reserved Addresses... 6 IP Terminals Details... 6 DHCP & VLANs... 7 BCM50e Integrated Router... 7 Required Information... 8 Flow Chart... 9 Configuration General Settings Setting the Address Ranges Reserving Addresses Viewing Current DHCP Clients Setting the IP Terminal Details Additional Information BCM Customer LAN IP Address Published IP Address Avaya Documentation Links NN Issue 1.2 BCM Rls 6.0

5 DHCP Server Overview The BCM can provide DHCP (Dynamic Host Configuration Protocol) service to network clients. DHCP allows a network administrator to supervise and distribute IP addresses - and other network settings such as default gateways and DNS servers - from a central location. This service dynamically assigns IP addresses to network computers and/or IP telephones, so you do not need to manually assign an IP address. It can also automatically assign a new IP address if a device connects to a different place in the network. The BCM can also issue Terminal Proxy Server (S1 & S2) settings to IP Telephones (e.g. i200x, 1100, 1200 series) which register using DHCP. This ensures that the IP phones register correctly with the BCM. Note: BCM50 models: This guide describes the DHCP service on the standard BCM50. The settings detailed in this guide do not relate to DHCP on the BCM50e router. For information on the BCM50e DHCP settings, refer to the BCM50 Router LAN Settings Guide. DHCP and the BCM The BCM has various DHCP modes. It can issue DHCP information to: All devices on a network IP Phones only Or not be used as any type of DHCP server As well as acting as a DHCP server, the BCM can be a DHCP client, i.e. it can request DHCP information from an established DHCP server on the network. DHCP Modes By default the BCM DHCP service is set to Enabled IP Phones Only. Ensure that the mode is set correctly for the network. The available modes are: Disabled Does not respond to DHCP requests from any device. Enabled IP Phones only Only responds to DHCP requests from IP Phones. Enabled All Devices Responds to DHCP requests from PC s and IP Phones on the network. Note: If DHCP is not required on the network, it is recommended that the DHCP mode is set to Disabled. NN Issue 1.2 BCM Rls 6.0 5

6 Note: If there is an existing DHCP Server on the network, it is recommended that the BCM be given a static or reserved IP Address. See the network administrator to obtain a static IP Address. Refer to the BCM LAN IP Address section for information on setting the BCM IP Address. Address Range The Address Range is a specified range of addresses that the BCM will issue when requested by network DHCP clients. Careful planning is required here so as not to conflict with static or reserved addresses. Address Ranges should be manually configured on the BCM, i.e. there is no automatic configuration of Address Ranges. Reserved Addresses Addresses can be reserved for specific network devices. The purpose of this is to ensure that a particular network device always has the same IP address. The advantage of reserving an address over statically assigning an address on the network device itself is that the network device can still register with the DHCP server and obtain all the usual DHCP information such as default gateway, DNS Servers etc. IP Addresses are reserved for a network device by entering the MAC address of the device and the IP Address reserved. A Reserved Address entry in the DHCP settings screen would require the following example information: MAC address, e.g C-78-C8 Reserved IP Address, e.g Note: The MAC (physical) address can be viewed from the command prompt by entering ipconfig /all command IP Terminals Details The DHCP configurations screens contain information to be transferred to IP phones when they register via DHCP. The IP phone-specific information includes the S1 and S2 server address, which is the IP address that the phone has to register with to use IP Telephony features. The S1 and S2 address will most usually be the IP Address of the BCM LAN ports. Other information that can be returned to DHCP requests from IP phones includes VLAN information. 6 NN Issue 1.2 BCM Rls 6.0

7 DHCP & VLANs A VLAN is a Virtual LAN whereby connected devices appear to be on the same physical network, although they may be geographically separated. This configuration is dependant on a network device being capable of supporting VLAN s, and all VLAN information should be obtained from the network administrator who looks after the VLAN devices. The BCM is capable of creating up to 4 VLANs on the BCM50, and 8 VLANs on the BCM450. This helps with network management, as it may not be desirable to have IP Phones and PCs on the same logical network. Configuring VLANs on the BCM itself affects DHCP in two main areas: Published IP Address: Creating VLANs results in a choice of selection for the Published IP Address (i.e. either the Customer LAN, or one of the VLANs). The Published IP Address should be the S1 Address in the IP Terminal DHCP Options screen. Address Ranges: If VLANs are configured on the BCM, DHCP Address Ranges can be configured to suit the VLAN network range. For example, if a VLAN interface is configured with an address of , the BCM will allow an Address Range of to be created. Note: For more information about the Published IP Address, refer to the IP Telephony Guide. For more information about VLANs, refer to the VLANs Guide. BCM50e Integrated Router On the BCM50e models, it is possible to choose between using the DHCP service on the main BCM unit, or the DHCP service on the router. There is an option with the DHCP General Settings tab on BCM50e models to select which DHCP Service to use. It is recommended that if VLANs are configured on the BCM, the main BCM unit DHCP service is used, and the router DHCP service is disabled. For more information on the BCM50e router DHCP service, please refer to the Router LAN Settings Guide. NN Issue 1.2 BCM Rls 6.0 7

8 Required Information Before commencing installation, certain information is required concerning the BCM and the customer s network. For configurations as a DHCP Server: Has the LAN interface IP Address been set as required? Does the customer already have a DHCP server? What is the required range of IP addresses? Is there a requirement for Reserved IP addresses? Does the customer have a WINS server and if so, what is the IP address? Is the customer using IP Phones? Is the customer using VLAN s? 8 NN Issue 1.2 BCM Rls 6.0

9 Flow Chart Use the flow chart below to determine which sections of the guide to use. To properly prepare the BCM for DHCP, ensure the BCM is not connected to the network. Contact the network administrator and obtain the DHCP requirements of the network: refer to the Required Information section of this guide. Ensure the BCM LAN IP Address is compatible with the DHCP requirements: refer to the BCM Customer LAN IP Address section of this guide. Set the DHCP mode and enter IP information to be issued to DHCP clients: refer to the General Settings section of this guide. Set the Address Range to be issued to DHCP clients: refer to the Setting the Address Ranges section of this guide. Will IP Phones be used on the BCM system? Yes No Check the Published IP Address: refer to the Published IP Address section of this guide. Check the IP Phone settings: refer to the Setting the IP Terminal Details section of this guide. Connect the BCM to the network NN Issue 1.2 BCM Rls 6.0 9

10 Configuration Note: Before configuring the BCM DHCP settings, ensure the LAN settings are configured as required, e.g. manual IP Address or obtain automatically. Refer to the BCM LAN IP Address section of this guide for more information on configuring the LAN IP Address. General Settings The General Settings screen allows you to configure the DHCP mode (refer to the DHCP Modes section of this guide) and DNS/WINS servers and Default Gateway that the network uses, if known. The settings entered here are returned to DHCP clients if DHCP is enabled. If there is already a DHCP server on the network and the BCM is set to obtain its IP Address dynamically (refer to the BCM LAN IP Address section of this guide), the BCM will obtain DNS, and WINS information from the network DHCP Server. 1. In Element Manager, select the Configuration tab and open the Data Services folder and select DHCP Server. 10 NN Issue 1.2 BCM Rls 6.0

11 2. Ensure the General Settings tab is selected. Set the DHCP Mode and other details such as DNS & WINS Server addresses. General Settings Screen Settings Attribute Value Description Disabled Enabled - IP Phones Only Enabled - All Devices The DHCP Server is Determines the functionality of the DHCP server. Default: Disabled IP domain name <alphanumeric The domain name of the network. character string> Primary DNS IP address <IP Address, format > The IP address of the primary DNS to be used by DHCP clients. Secondary DNS IP address <IP Address, format > The IP address of the secondary DNS to be used by DHCP clients. WINS server address <IP Address, format > The address of the Windows Internet Server, which resolves IP addresses on a DHCP network. WINS node type <drop-down menu> The type of WINS node: B-node: The BCM first checks the HMHOSTS cache, then uses broadcast for name registration and resolution. P-node:The BCM registers with a NetBIOS Name server at startup. M-node: Mixes B- and P-node. The BCM uses the B-node method, and if that fails, uses the P-node method. H-node: Uses both B- and P-node methods. B- node is used only as a last resort. Default: H-node Lease time(s) <numeric string> The amount of time before a DHCP lease expires and the device must request a new IP address. Default: seconds NN Issue 1.2 BCM Rls

12 Setting the Address Ranges The IP Addresses to be issued to DHCP clients are entered in this section. If the DHCP mode is set to Enabled IP Phones Only then the Address Range entered here will only relate to IP Phones. 1. In Element Manager, select the Configuration tab and open the Data Services folder and select DHCP Server. 2. Select the Address Ranges tab. Click on Add to add a new Address Range. It is possible to configure Address ranges for the Customer LAN IP address and also any VLANs that may be configured (refer to the Additional Information section of this guide for more information on the Customer LAN and VLANs). You can also: Click on Modify to add a new address range Click on Delete to delete a range 12 NN Issue 1.2 BCM Rls 6.0

13 3. In this example an address range has been added. Enter the address range and the Default Gateway to be issued to DHCP clients and click OK. Note: If an Address Range is entered that is not compatible with the Customer LAN or VLAN subnets, an Invalid Parameter error message will be displayed. The Address Ranges must be compatible with the Customer or VLAN subnets. Note: Whenever you make changes to the address range, the DHCP server may become unavailable to clients for a brief period of time. Address Ranges Settings Attribute Value Description Included Address Ranges From IP Address <IP Address, format > An IP address specifying the lowest IP address in a range. To IP Address <IP Address, format > An IP address specifying the highest IP address in a range. Default gateway <IP Address, format > The gateway through which DHCP clients connect to an external network. Add <button> Click to add an included address range. Delete <button> Click to delete a selected address range. Modify <button> Click to modify a selected address range. Reserving Addresses Reserving Addresses for network devices ensures that those devices always retain the same IP Address, but they can also be updated with DNS and gateway information, should that change. Typically, network devices that provide some kind of function to the rest of the network, e.g. hosting an application service, would benefit from having a reserved address. With this configuration, other network devices can always connect to the same location. The process of reserving an IP Address consists of specifying the MAC address of the network device, and assigning an IP Address to the MAC Address. Note: Reserved Addresses cannot be within an existing BCM DHCP Address Range. NN Issue 1.2 BCM Rls

14 1. In Element Manager, select the Configuration tab and open the Data Services folder and select DHCP Server. 2. Click on the Address Ranges tab. In the bottom part of the screen, click on Add. 14 NN Issue 1.2 BCM Rls 6.0

15 3. Enter the IP Address you want to reserve, and the MAC Address to assign the IP Address to. The Client Name and Client Description fields are optional, but helpful in identifying the device. 4. Click on OK when finished. The entry will be displayed in the Reserved Address table. NN Issue 1.2 BCM Rls

16 Viewing Current DHCP Clients Use the following procedure to view DHCP clients who currently have an IP Address issued by the BCM. 1. In Element Manager, select the Configuration tab and open the Data Services folder and select DHCP Server. 2. Click on the Lease Info tab. Current DHCP clients will be listed. Lease Info Settings Attribute Value Description IP Address <read-only> The IP address currently supplied to the client. MAC <read-only> The MAC address of the client. Address Client Name <read-only> The client name, if the client has been given a name in the Reserved Addresses table. Otherwise, this field is blank. Lease Start <read-only date format: The date and time the lease began. yyyy-mm-dd hh:mm:ss> Lease Expiration <read-only date format: yyyy-mm-dd hh:mm:ss> The date and time the lease is set to expire. 16 NN Issue 1.2 BCM Rls 6.0

17 Setting the IP Terminal Details Use this screen to enter information that will be issued to IP Phones when they register via DHCP. This mainly relates to the S1 & S2 servers which are the IP Addresses of the UNISTIM service that provide the IP Telephony service. The UNISTIM service is provided via the BCM LAN ports, and VLANs. Note: If the S1 and S2 entries are not manually changed, they will always default to the Published IP Address (refer to the Additional Information section of this guide). If the Published IP Address changes, so will the S1 & S2 addresses. If the S1 and S2 addresses are entered manually, they will not automatically update when the Published IP Address is changed. 1. In Element Manager, select the Configuration tab and open the Data Services folder and select DHCP Server. NN Issue 1.2 BCM Rls

18 2. Select the IP Terminal DHCP Options tab. If you need to change the S1 or S2 information, alter the appropriate fields. Note: The S1 address should always correspond to the BCM LAN IP Address. The S2 address can be the same as S1 or the IP Address of a BCM offering a backup UNISTIM service. 3. If there are any VLAN (Virtual LAN) settings to be issued to IP Phones, enter these in the VLAN Identifiers field. This information will be supplied by the VLAN switch administrator. IP Terminal DHCP Options Attribute Value Description Primary Terminal Proxy Server (S1) IP Address <IP address> The IP address of the Proxy Server for IP phones Port <drop-down list> Select the appropriate port: BCM SRG Meridian 1/Succession 1000 Centrex/SL-100 Other Port number <read only> The port number on the terminal through which IP phones connect. Action <read-only> The initial action code for the IP telephone. Retry count <number> The delay before an IP phone retries connecting to the proxy 18 NN Issue 1.2 BCM Rls 6.0

19 Attribute Value Description server. Secondary Terminal Proxy Server (S2) IP address <IP address> The IP address of the Proxy Server for IP phones. Port <drop-down list> Select the appropriate port: BCM SRG Meridian 1/Succession 1000 Centrex/SL-100 Other Port number <read onlyr> The port number on the terminal through which IP phones connect. Action <read-only> The initial action code for the IP telephone Retry count <number> The delay before an IP phone retries connecting to the proxy server. VLAN VLAN identifiers (commadelimited) Specify the Virtual LAN (VLAN) ID numbers that are given to the IP telephones. If you want DHCP to automatically assign VLAN IDs to the IP telephones, enter the VLAN IDs in the following format: VLAN-A:id1, id3,,idn. Where: VLAN-A is an identifier that tells the IP telephone that this message is a VLAN discovery message. Id1, id2, idn are the VLAN ID numbers that DHCP can assign to the IP telephones. You can have up to 10 VLAN ID numbers listed. The VLAN ID numbers must be a number from 0 to For example, if you wanted to use VLAN IDs 1100, 1200, 1300 and 1400, you would enter the following string in this box: VLAN- A:1100, 1200, 1300, If you do not want DHCP to automatically assign VLAN IDs to the telephones, enter VLAN-A:none, in this text box. Note1: The AVAYA IP Terminal VLAN ID string, must be terminated with a period (.). Note2: If you do not know the VLAN ID, contact your network administrator. Note3: For information bout how to setup a VLAN, refer to the user documentation that came with your VLAN compatible switch, or refer to the VLANs Guide. Avaya WLAN Handset Settings TFTP Server IP Address Enter the IP Address of the TFTP server that is used for providing firmware to the WLAN handsets and the 2245 IP Telephony Manager WLAN IP Telephony Manager 2245 IP Address Enter the IP Address WLAN IP Telephony Manager 2245 NN Issue 1.2 BCM Rls

20 Additional Information BCM Customer LAN IP Address The Customer LAN IP Address of the BCM can be statically defined or obtained automatically. If the BCM LAN IP Address is statically defined and BCM DHCP is enabled, the Address Ranges (refer to the Setting the Address Ranges section of this guide) must be in the same network range as the BCM IP Address. If there is an existing DHCP Server on the network, it is recommended that the BCM be given a static IP Address. See the network administrator to obtain a static IP Address. Use the following procedure to set the BCM Customer LAN IP Address. 1. In the Configuration tab open the System heading and click on IP Subsystem. 20 NN Issue 1.2 BCM Rls 6.0

21 2. Click on the LAN Interfaces tab, and select Customer LAN. 3. If the Customer LAN IP Address requires changing, click on the Modify button in the Details area. NN Issue 1.2 BCM Rls

22 4. Enter the IP Settings as required. You can choose to: Obtain an IP Address, Subnet Mask, and Default Gateway automatically. Enter an IP Address, Subnet Mask, and Default Gateway manually. 5. Click OK to save your settings. You may lose your connection to Element Manager. You will not need to reboot the BCM. Note: The BCM s Default Gateway can also be set in the General Settings tab. 6. If the BCM is obtaining its network settings via DHCP (either its own DHCP server or one that resides on the network), you can choose to renew the network settings. To do so, click Renew IP Address. 22 NN Issue 1.2 BCM Rls 6.0

23 7. DNS settings can also be entered, if you are not receiving this information via DHCP. Contact the network administrator for DNS settings. Click on the General Settings tab and enter the required DNS information. Note: For more information concerning the configuration of VLANs, please refer to the VLANs Guide. NN Issue 1.2 BCM Rls

24 Published IP Address The Published IP Address is the address that IP Telephones should register against, being the S1 and S2 (dependent on network setup) addresses configured during the registration process. This affects DHCP configuration in respect to the S1/S2 addresses entered in the IP Terminal DHCP Options screen, which generally should be the same as the Published IP Address. Use the following process to check the Published IP Address and the S1/S2 addresses. 1. In the Element Manager Configuration tab, open the System folder and click on IP Subsystem. 2. The Published IP Interface will be listed as either the main Customer LAN or a VLAN created in the VLAN Interfaces tab. 3. The actual IP Address of the selected Published IP Interface will be stated in the Published IP Address field. 24 NN Issue 1.2 BCM Rls 6.0

25 4. Now open the Data Services folder and select DHCP Server. 5. Click on the IP Terminal DHCP Options screen and check that the S1 & S2 IP Addresses match the Published IP Address. Note: Certain network scenarios may require the S1 & S2 Addresses to be different, i.e. there may be a secondary server for the IP phone to connect to in case of the primary server not being available. For further information about the Published IP Interface, refer to the IP Telephony Guide. NN Issue 1.2 BCM Rls

26 Avaya Documentation Links Planning and Engineering guide Installation Checklist and Quick Start guide Configuration System guide 26 NN Issue 1.2 BCM Rls 6.0