Network requirements ··········································································································································· 23
Configuration procedure ······································································································································ 23
Verifying the configuration ··································································································································· 24
DHCP overview ·························································································································································· 25
DHCP address allocation ·············································································································································· 25
Allocation mechanisms ········································································································································· 25
IP address allocation process ······························································································································· 26
IP address lease extension···································································································································· 26
DHCP message format ··················································································································································· 27
DHCP options ································································································································································· 28
Common DHCP options ········································································································································ 28
Custom DHCP options ··········································································································································· 28
Protocols and standards ················································································································································ 30
Configuring the DHCP server ···································································································································· 32
Overview ········································································································································································· 32
DHCP address pool ··············································································································································· 32
IP address allocation sequence ···························································································································· 34
Configuration task list ··········································································································································· 35
Creating a DHCP address pool ··························································································································· 35
Customizing DHCP options ·································································································································· 42
Enabling DHCP ······························································································································································ 43
Enabling handling of Option 82 ·································································································································· 44
Symptom ································································································································································· 53
Analysis ·································································································································································· 53
Solution ··································································································································································· 54
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