ii
Configuring ARP suppression ······································································· 23
Overview ·························································································································································· 23
Configuration procedure ·································································································································· 23
Displaying and maintaining ARP suppression ································································································· 24
ARP suppression configuration example ········································································································· 24
Network requirements ······························································································································ 24
Configuration procedure ··························································································································· 25
Verifying the configuration ························································································································ 25
Configuring ARP direct route advertisement ················································· 26
Overview ·························································································································································· 26
Configuration procedure ·································································································································· 26
Configuring IP addressing ············································································· 27
Overview ·························································································································································· 27
IP address classes ··································································································································· 27
Special IP addresses ······························································································································· 28
Subnetting and masking ··························································································································· 28
Assigning an IP address to an interface ·········································································································· 28
Configuration guidelines ··························································································································· 29
Configuration procedure ··························································································································· 29
Configuring IP unnumbered ····························································································································· 29
Configuration guidelines ··························································································································· 29
Configuration prerequisites ······················································································································ 30
Configuration procedure ··························································································································· 30
Displaying and maintaining IP addressing ······································································································· 30
Configuration examples ··································································································································· 30
IP address configuration example ············································································································ 30
IP unnumbered configuration example ···································································································· 32
DHCP overview ····························································································· 34
DHCP address allocation ································································································································· 34
Allocation mechanisms ···························································································································· 34
IP address allocation process ·················································································································· 35
IP address lease extension ······················································································································ 35
DHCP message format ···································································································································· 36
DHCP options ·················································································································································· 37
Common DHCP options ··························································································································· 37
Custom DHCP options ····························································································································· 37
Protocols and standards ·································································································································· 39
Configuring the DHCP server ······································································· 40
Overview ·························································································································································· 40
DHCP address pool ································································································································· 40
IP address allocation sequence ··············································································································· 42
DHCP server configuration task list ················································································································· 42
Configuring an address pool on the DHCP server ··························································································· 43
Configuration task list ······························································································································· 43
Creating a DHCP address pool ················································································································ 43
Specifying IP address ranges for a DHCP address pool ········································································· 43
Specifying gateways for DHCP clients ····································································································· 46
Specifying a domain name suffix for DHCP clients ·················································································· 47
Specifying DNS servers for DHCP clients ································································································ 47
Specifying WINS servers and NetBIOS node type for DHCP clients ······················································· 47
Specifying BIMS server for DHCP clients ································································································ 48
Specifying the configuration file for DHCP client auto-configuration ························································ 48
Specifying a server for DHCP clients ······································································································· 49
Configuring Option 184 parameters for DHCP clients ············································································· 50
Customizing DHCP options ······················································································································ 50
Configuring the DHCP user class whitelist ······························································································· 52
Enabling DHCP ················································································································································ 52
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