Difference between revisions of "DHCP"

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(DHCP configuration items)
(DHCP Failover (HA))
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== DHCP Failover (HA) ==
 
== DHCP Failover (HA) ==
* Relationship Name: DHCP01<->DHCP02
+
* Relationship Name: DHCPserver01<->DHCPserver02
 
* Maximum Client Lead Time: 1 hour (default)
 
* Maximum Client Lead Time: 1 hour (default)
 
* Mode: Load balance (default) 50% / 50%
 
* Mode: Load balance (default) 50% / 50%

Revision as of 13:38, 15 February 2017

DHCP make things easy, and my be ”unaware“ to users, but will get complaints in case it does not work.

DHCP configuration items

  • Address Pool (192.168.1.100-192.168.1.250/24)
  • Reservation (IP address 192.168.1.105 <-> MAC address 005056C00008)
  • Scope Options
    • 003 Router
    • 006 DNS Servers
    • 066 Boot Server Host Name
    • 067 Bootfile Name
  • Server Options

Install DHCP

  • Install-WindowsFeature -Name DHCP -IncludeManagementTools

Post-deployment Configuration

  • Complete DHCP configuration
  • Specify the credentials to be used to authorize this DHCP server in AD DS
  • Commit

DHCP Failover (HA)

  • Relationship Name: DHCPserver01<->DHCPserver02
  • Maximum Client Lead Time: 1 hour (default)
  • Mode: Load balance (default) 50% / 50%
  • State Switchover Internal: 60 minutes (optional)
  • Enable Message Authenication
    • Shared Secret: **********

DHCP Split-Scope (HA)

  • Percentage of IP V4 Addresses: Host DHCP server 80% / Added DHCP server 20% (default)
  • Delay in DHCP Offer (milli seconds): Host DHCP server 0 / Added DHCP server 0 (default)

DHCP in multiple VLANs

  • DHCP servers(HA) are in server VLAN, and can provide DHCP service to multiple VLANs
  • Network team may need to configure ip helper-address