R211x-HP Flexfabric 11900 Layer 3 - IP Services Configuration Guide
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Configuration procedure ······································································································································ 22
Verifying the configuration ··································································································································· 23
DHCP overview ·························································································································································· 24
DHCP address allocation ·············································································································································· 24
Allocation mechanisms ········································································································································· 24
IP address allocation process ······························································································································· 25
IP address lease extension···································································································································· 25
DHCP message format ··················································································································································· 26
DHCP options ································································································································································· 27
Common DHCP options ········································································································································ 27
Custom DHCP options ··········································································································································· 27
Protocols and standards ················································································································································ 29
Configuring the DHCP server ···································································································································· 31
Overview ········································································································································································· 31
DHCP address pool ··············································································································································· 31
IP address allocation sequence ···························································································································· 33
DHCP server configuration task list ······························································································································ 33
Configuring an address pool on the DHCP server ····································································································· 33
Configuration task list ··········································································································································· 33
Creating a DHCP address pool ··························································································································· 34
Specifying IP address ranges for a DHCP address pool ·················································································· 34
Specifying gateways for the client······················································································································· 37
Specifying a domain name suffix for the client ·································································································· 38
Specifying DNS servers for the client ·················································································································· 38
Specifying WINS servers and NetBIOS node type for the client ····································································· 39
Specifying BIMS server information for the client ······························································································ 39
Specifying the TFTP server and boot file name for the client ············································································ 40
Specifying a server for the DHCP client ·············································································································· 40
Configuring Option 184 parameters for the client ···························································································· 41
Customizing DHCP options ·································································································································· 41
Enabling DHCP ······························································································································································ 42
Enabling the DHCP server on an interface ·················································································································· 42
Applying an address pool on an interface ················································································································· 43
Configuring IP address conflict detection ···················································································································· 43
Enabling handling of Option 82 ·································································································································· 44
Configuring DHCP server compatibility ······················································································································· 44
Configuring the DHCP server to broadcast all responses ················································································· 44
Configure the DHCP server to ignore BOOTP requests ···················································································· 44
Configuring the DHCP server to send BOOTP responses in RFC 1048 format·············································· 45
Setting the DSCP value for DHCP packets sent by the DHCP server ········································································ 45
Displaying and maintaining the DHCP server ············································································································ 46
DHCP server configuration examples ·························································································································· 46
Static IP address assignment configuration example························································································· 46
Dynamic IP address assignment configuration example ··················································································· 48
DHCP user class configuration example ············································································································· 49
DHCP option customization configuration example ·························································································· 50
Troubleshooting DHCP server configuration ··············································································································· 51
Symptom ································································································································································· 51
Analysis ·································································································································································· 51
Solution ··································································································································································· 51
Configuring the DHCP relay agent ··························································································································· 53
Overview ········································································································································································· 53
Operation ······························································································································································· 53