R21xx-HP FlexFabric 11900 Layer 3 IP Services Configuration Guide

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Configuring ARP snooping ········································································································································ 19
Configuration procedure ··············································································································································· 19
Displaying and maintaining ARP snooping ················································································································ 19
Configuring IP addressing ········································································································································· 20
Overview ········································································································································································· 20
IP address classes ·················································································································································· 20
Special IP addresses ············································································································································· 21
Subnetting and masking ······································································································································· 21
Assigning an IP address to an interface ······················································································································ 22
Configuration guidelines ······································································································································ 22
Configuration procedure ······································································································································ 22
Configuring IP unnumbered ·········································································································································· 23
Configuration guidelines ······································································································································ 23
Configuration prerequisites ·································································································································· 23
Configuration procedure ······································································································································ 23
Displaying and maintaining IP addressing ················································································································· 23
IP address configuration example ································································································································ 24
Network requirements ··········································································································································· 24
Configuration procedure ······································································································································ 24
Verifying the configuration ··································································································································· 25
DHCP overview ·························································································································································· 26
DHCP address allocation ·············································································································································· 26
Allocation mechanisms ········································································································································· 26
Dynamic IP address allocation process··············································································································· 27
IP address lease extension···································································································································· 27
DHCP message format ··················································································································································· 28
DHCP options ································································································································································· 29
Common DHCP options ········································································································································ 29
Custom DHCP options ··········································································································································· 30
Protocols and standards ················································································································································ 32
Configuring the DHCP server ···································································································································· 33
Overview ········································································································································································· 33
DHCP address pool ··············································································································································· 33
IP address allocation sequence ···························································································································· 34
DHCP server configuration task list ······························································································································ 35
Configuring an address pool on the DHCP server ····································································································· 35
Configuration task list ··········································································································································· 35
Creating a DHCP address pool ··························································································································· 36
Specifying IP address ranges for a DHCP address pool ·················································································· 36
Specifying gateways for the client······················································································································· 39
Specifying a domain name suffix for the client ·································································································· 40
Specifying DNS servers for the client ·················································································································· 40