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dhcp50 [2019/06/06 11:28]
root
dhcp50 [2020/03/11 16:27]
zog
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-=====DHCP-server=====+=====DHCP-server.=====
  
-====Main page of the module====+The “DHCP” module is located in the “Network” menu. This module is intended for DHCP protocol settings. The “DHCP” ​module ​has four tabs: “DHCP server”, “Settings”,​ “Addresses”,​ “Log”.
  
-{{dhcp1.png}}+{{:dhcp1.png?650|}}
  
-DHCP is the network protocol which allows nodes to obtain IP-address and other necessary network parameters automatically. It allows to avoid manual setup of workstations in the LAN and reduces the mistakes. DHCP is a client-server protocol: to be automatically configured, the workstation-client requests server and get the necessary parameters from it. In the DHCP module you can turn on/off the DHCP-server,​ check its performance,​ and set some parameters.+DHCP is the network protocol which allows nodes to obtain IP-address and other necessary network parameters automatically. It allows to avoid manual setup of workstations in the LAN and reduces the mistakes. DHCP is a client-server protocol: to be automatically configured, the workstation-client requests server and get the necessary parameters from it. 
  
-{{dhcp2.png}}+===== DHCP-server. ===== 
 + 
 +You can see it’s status on the main page of the module, the “Disable” button (ot “Enable” when the module is already disabled) and last log messages. If DHCP is not selected on any of the local networks, the module is in the “Not configured” state. 
 + 
 +===== DHCP Enabling. ===== 
 + 
 +{{:dhcp2.png?|}}
  
 The setup for DHCP is separate for every LAN and is located in the “Providers and networks” module. The setup for DHCP is separate for every LAN and is located in the “Providers and networks” module.
 +
 To allow DHCP in a LAN, you need to edit the LAN, enable “Allow DHCP in this network” option, and set a range of IP-addresses that will be given to this LAN’s nodes (syntax should be either like 192.168.1.1-192.168.1.100,​ or like 192.168.1.1\16). To allow DHCP in a LAN, you need to edit the LAN, enable “Allow DHCP in this network” option, and set a range of IP-addresses that will be given to this LAN’s nodes (syntax should be either like 192.168.1.1-192.168.1.100,​ or like 192.168.1.1\16).
- 
-If DHCP is not allowed for any LAN, then DHCP service status will be “not set”. 
  
 ====Settings==== ====Settings====
  
-{{dhcp3.png}}+{{:dhcp3.png?|}}
  
-On the “Settings” ​tab you can set the time servers, DNS and WINS-servers,​ which will be used on the nodes. Apart from that you can set path to TFTP-server here, which is necessary for some configurations (for thin clients, for example), and also the time period for which IP-address will be reserved for the node (lease period). +This tab contains ​the following settings:
-Also you can set a DNS-zone for auto-registration. This way when a new workstation obtain an IP from the DHCP-server,​ an A-record will be created for him looking as Netbios-name.domain. +
-Also you can turn on automated distributing of a proxy parameters from ICS or from some other server.+
  
-====Leased ​addresses====+Unordered List ItemChoosing the parameters of DNS-servers and a time server allows you to determine whether for all users receiving ​addresses ​automatically ICS CUBE or third-party servers will be used as a DNS server and a time server.
  
-{{dhcp4.png}}+**WINS server** field - allows you to specify the WINS server issued to clients for resolving Netbios names. https://​en.wikipedia.org/​wiki/​Windows_Internet_Name_Service 
 + 
 +**URL of TFTP server** field - allows you to specify the TFTP issued to clients from which a thin client can be downloaded. 
 + 
 +**Least time of IP** (in minutes) field - allows you to specify the lease period for the address. At the end of this period, if the client with the given address is not in the network, the record of the address issuance is cleared and it can be issued to the new client (if IP and mac addresses are not mapped). 
 + 
 +**DNS zone for auto registration of addresses** field allows you to specify one of the previously created DNS zones in which new users who receive addresses via DHCP will register as A-records of the form <​hostname>​. <​zonename>​. 
 + 
 +**Publish autoconfiguration script with DHCP** checkbox allows you to choose how the proxy server’s automatic settings will be transmitted to the user — automatically or from the address in the next field where the settings file is located. 
 + 
 +====Addresses==== 
 + 
 +{{:dhcp4.png?|}}
  
 On the “Addresses” tab you can see all the users which are currently obtaining addresses via DHCP. On the “Addresses” tab you can see all the users which are currently obtaining addresses via DHCP.
-If you would like nodes to obtain the same IP every time, you need to make a connection between it’s MAC-address and the IP-address. To create a connection while this IP is leased, you can use the button “Connect IP with MAC”. The connections from the “ARP table” module will be also used by the DHCP-server to lease IPs. 
-To give to a user another IP, copy the MAC-address and press “Add” - “DHCP address”. Enter the MAC and set the new IP. The change will be applied when the lease period will be over, or when a user will connect anew. 
-For IP-addresses set for users, the owner’s names will be shown. If you click on the user name, you will be redirected to his page. 
  
-{{dhcp5.png}}+If you would like nodes to obtain the same IP every time, you need to make a connection between its MAC-address and the IP-address. To assign the current IP address to the user, you can use the "​Connect IP with MAC" button. The connections from the ARP table module will also be used by the DHCP server to issue addresses. 
 + 
 +When you click the “Add” button, a window with the **IP address** and **MAC address** fields will open, which allows you to add a connection between IP and MAC addresses in the same way. 
 + 
 +{{:dhcp5.png?|}} 
 + 
 +For IP-addresses set for users, the owner’s names will be shown. If you click on the user name, you will be redirected to his page.
  
 DHCP-server uses the same list of the IP and MAC addresses connections,​ as the ARP table. DHCP-server uses the same list of the IP and MAC addresses connections,​ as the ARP table.
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 In the top right corner there is a search line. You can use it to look for specific log entries. In the top right corner there is a search line. You can use it to look for specific log entries.
-Log always shows events of the current date. To check the messages from some other date, you can pick one in the calendar in the top left corner of the module.+Log always shows events of the current date. 
  
-If necessary, you can save log in a file, using the “Export” button.+If necessary, you can save log in a file, using the “Export” ​button or delete the log data for a certain period by clicking the "​Delete logs" ​button.
  
  
dhcp50.txt · Last modified: 2020/03/11 16:27 by zog