DHCP

DHCP

1. DHCPv4 functions

   • Origin of the lease
     • DHCP Detection (DHCPDISCOVER)
       • DHCP Offer (DHCPOFFER)
         • DHCP Request (DHCPREQUEST)
           • DHCP acknowledgment (DHCPACK)
             • Lease Renewal
               • DHCP Request (DHCPREQUEST)
                 • DHCP acknowledgment (DHCPACK)
   • DHCPv4 message format
     • Operation Code (OP)
       • Hardware type
         • Hardware Address Length
           • Jumps
             • Transaction identifier
               • Seconds
                 • Indicators
                   • Client IP address
                     • Your IP address
                       • IP address of the server
                         • Gateway IP Address
                           • Client Hardware Address
                             • Server name
                               • Boot File Name
                                 • DHCP options
     • DHCPv4 Discover and Offer Messages

2. Configuring a basic DHCPv4 server

   • Exclude IPv4 addresses
     • Configure a DHCPv4 pool
       • Configure specific tasks
   • DHCPv4 Verification
     • DHCPv4 Relay

3. DHCPv4 client configuration

   • Configuring a router as a DHCPv4 client
     • Configuring a wireless router as a DHCPv4 client

4. DHCPv4 troubleshooting

   • Troubleshooting Task 1: Resolve IPv4 Address Conflicts
     • Problem solving task 2: verify physical connectivity
       • Troubleshooting task 3: test connectivity using a static IP address
         • Troubleshooting Task 4: Verify Switch Port Settings
           • Troubleshooting task 5: test the operation of DHCPv4 on the same subnet or VLAN
   • Verification of router DHCPv4 configuration
     • Step 1: Verify that the ip helper-address command
       • Step 2: Verify that the global no service dhcp configuration command has not been configured
     • DHCPv4 debugging

5. DHCPv6

   • Automatic status independent address configuration (SLAAC)
     • Introduction to SLAAC
       • Router Request Message (RS)
         • Router announcement message (RA)
     • SLAAC operation
       • SLAAC and DHCPv6
         • three addressing options for the IPv6 device
           • SLAAC (router ad only)
             • Stateless DHCPv6 (router and DHCPv6 announcement)
               • DHCPv6 with status (DHCPv6 only)
         • SLAAC option
           • SLAAC option (router ad only)
           • DHCPv6 stateless option
             • DHCPv6 stateless option (router and DHCPv6 announcement)
             • DHCPv6 option with status
               • DHCPv6 with status (DHCPv6 only)
               • DHCPv6 operations
                 • DHCPv6 Communications
                   • DHCPv6 client without status
                     • DHCPv6 client without status
   • DHCPv6 without status
     • Configuring a router as a stateless DHCPv6 server
       • Step 1: Enable IPv6 routing
         • Step 2: Configure a DHCPv6 pool
           • Step 3: Configure the pool parameters
             • Step 4: Configure the DHCPv6 interface
     • Configuring a router as a stateless DHCPv6 client
       • Stateless DHCPv6 Verification
         • DHCPv6 client verification without status
   • DHCPv6 server with status
     • Configuración de un router como servidor de DHCPv6 con estado
       • Step 1: Enable IPv6 routing
         • Step 2: Configure a DHCPv6 pool
           • Step 3: Configure the pool parameters
             • Step 4: Interface Commands
     • Configuring a router as a DHCPv6 client with status
       • DHCPv6 verification with status
         • Configuring a router as a DHCPv6 relay agent

6. DHCPv6 Troubleshooting

   • Troubleshooting Tasks
     • Verification of router DHCPv6 configuration
       • DHCPv6 debugging

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