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Mettle Knowledge / Mettle SE / Configuring DHCP Server

Configuring DHCP Server
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Views: 1214
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Posted: 01 Jul, 2008
by: Knowledge M.
Updated: 25 Jan, 2010
by: Knowledge M.
To assign DHCP lease to host machines in the local Network you have to follow the steps below:-

  1. Check 'Enable DHCP Server' to enable DHCP on an Interface.
  2. Check 'Deny unknown clients' to deny DHCP lease to clients except for those which are defined with static mapping.
  3. Range - Enter the start IP address and the finish IP address for use as DHCP pool. DHCP range must be contained within the subnet of the interface being configured.
  4. WINS Servers -  Enter the IP address of WINS servers if you use WINS servers. They need not be on the same network but proper routing and firewall rules should be in place.
  5. DNS Servers - Depending on your LAN setup you may or may not fill in the DNS servers. Leaving the fields blank and if you enable DNS forwarder in Mettle SE, mettle SE will assign itself as the DNS forwarder for client PCs. If the fields are left blank and if DNS forwarder is disabled Mettle SE will pass on the DNS server assigned in System --> General Setup. If you wish to use your own DNS servers instead of automatic choices, enter the IP addresses of the DNS servers here.
  6. Gateway - If LAN is using Mettle SE as the default gateway, the field can be left blank. If not enter the IP address of your gateway.
  7. Default and Maximum  Lease Time - Value to be entered in 'seconds'. It control the life of the DHCP lease. Default lease time is supplied by Metle SE when the client does not request for a specific lease time. Maximum lease time will control how long lease will last even if the client asks for a longer lease time.
  8. Fail-over Peer IP - If Mettle SE is setup in a failover stack enter the IP address of the slave Mettle SE here.
  9. Static ARP - If enabled Mettle SE will deny DHCP lease to unknown MAC addresses and also restrict any unknown client from communicate with Mettle SE. Before enabling static ARP make sure that clients which need to communicate with Mettle SE are listed inside static mapping list, especially the machine you need to access Mettle SE web interface from.
  10. Dynamic DNS - Click on 'Advanced' button to go to Dynamic DNS settings. Check the check box to enable it. If using Mettle SEs DNS forwarder you can leave this blank and configure it inside DNS forwarder setup.
  11. NTP Servers - Click on the 'Advanced' button to enter NTP server IP addresses.
  12. Enable Network Booting - Click 'Advanced' button to view or enable network booting settings. Check the box to enable it. Enter the IP address of the 'Network boot server' and the 'File name of the boot image'.
  13. After changes have been made click on 'Save' to save settings. This must be done before creating static mappings.
  14. Static Mappings - This allows you to provide specific IP addresses to specific clients inside the LAN. To set static mapping click on '+' button and you will be forwarded to a new page. Here you will need to enter the MAC address of the particular client PC in the 'MAC Address' field and enter the IP address in the 'IP address' field. 'Host name' and 'Description' is not parsed so you may enter it or not. Please note that IP addresses issued for static mapping must be outside of the DHCP pool. Save the changes before navigating away from the page.
Also read
document Initial Configuration: Setting up Mettle SE in a Local Area Network with Internet Connection.
document Deploying A Second LAN With Mettle SE.
document NTP Client/Server
document Wake On LAN
document Adding a Static DHCP Lease

Others in this Category
document Initial Configuration: Setting up Mettle SE in a Local Area Network with Internet Connection.
document Default IP Address & Admin Password (And How To Change It?)
document Enabling The LAN Hosts To Use The Internet Connection (NATing)
document Adding A Second (Or More) Internet Connection To Mettle SE & Setting Up Failover/Load Balancing
document Monitoring The Internet Usage
document How To Turn On/Off The Content Filter & Gateway Antivirus Service
document Fine Tuning The Content Scanner
document Setting Up PPTP VPN accounts
document OpenVPN: Setting Up SSL-VPN accounts
document Setting Up IPsec VPN Accounts
document Deploying A Second LAN With Mettle SE.
document Choosing a VPN Technology
document Adding Firewall Rules
document Setting Up Mettle SE Stack for Active/Passive Fail-Over (CARP)
document Connecting & Securing a Leased Line Connection to Mettle SE
document Port Forwarding (PAT)
document Creating a DNS Entry/Record for the LAN
document Blocking GTalk in the LAN
document Blocking Yahoo! IM from the LAN
document OpenVPN: If VPN Clients Want to Access a Subnet other than "Local network"
document Setting up IPSec Tunnel
document Open VPN Troubleshooting
document PPTP VPN Troubleshooting
document NTP Client/Server
document Setting Up an IPSec VPN Client: Example Given Using Shrewsoft VPN Client
document Firewall: Alias
document Captive Portal
document Virtual IP Address
document OpenVPN: Setting Up a SSL-VPN Client in Windows
document Creating Tagged VLANs
document Cloning Firewall Rules
document IPsec VPN Troubleshooting
document Wake On LAN
document Inbound Loadbalancing
document OpenVPN: Setting up Certification Authority & Generating Certificates
document Changing default webGUI Port and Protocol
document Using Packet Capture
document Using Traceroute
document Package Updates
document OpenVPN: To make OpenVPN client use VPN as the Default Gateway
document OpenVPN: To exclude some Network from using VPN gateway when VPN is set as default gateway for VPN client
document Adding a Static DHCP Lease
document Schedule Based Firewall Rules
document RRD Graphs
document Server Load Balancing
document Firewall Logs
document Backup and Restore Mettle SE Running Configuration
document Event Logging To Remote Syslog Server
document Split DNS
document NAT Reflection/NAT Loopback
document Dynamic DNS


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