H3C Technologies H3C WX6000 Series Access Controllers User Manual

Page 17

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Enabling the ARP Entry Check ·····································································································33-5
ARP Configuration Example······································································································
····33-5

Configuring Gratuitous ARP··················································································································33-6

Introduction to Gratuitous ARP······································································································33-6
Configuring Gratuitous ARP ·····································································································
·····33-6

Displaying and Maintaining ARP···········································································································33-6

34 Proxy ARP Configuration ·····················································································································34-1

Proxy ARP Overview·····························································································································34-1
Enabling Proxy ARP·············································································································
·················34-1
Displaying and Maintaining Proxy ARP ···························································································
·····34-1
Proxy ARP Configuration Examples ·····································································································34-2

Proxy ARP Configuration Example ·······························································································34-2
Local Proxy ARP Configuration Example in Case of Port Isolation ··············································34-2

35 DHCP Overview······································································································································35-1

Introduction to DHCP ····························································································································35-1
DHCP Address Allocation ·····················································································································35-2

Allocation Mechanisms··················································································································35-2
Dynamic IP Address Allocation Process ·······················································································35-2
IP Address Lease Extension ·········································································································35-3

DHCP Message Format························································································································35-3
DHCP Options·······································································································································35-4

DHCP Options Overview···············································································································35-4
Introduction to DHCP Options ·······································································································35-5
Self-Defined Options ···········································································································
··········35-5

Protocols and Standards·······················································································································35-7

36 DHCP Relay Agent Configuration ········································································································36-1

Introduction to DHCP Relay Agent ·······································································································36-1

Application Environment················································································································36-1
Fundamentals···················································································································
·············36-1
DHCP Relay Agent Support for Option 82 ····················································································36-2

Configuration Task List ·························································································································36-3
Configuring the DHCP Relay Agent·······························································································
·······36-3

Enabling DHCP ·····························································································································36-3
Enabling the DHCP Relay Agent on an Interface ·········································································36-4
Correlating a DHCP Server Group with a Relay Agent Interface··················································36-4
Configuring the DHCP Relay Agent to Send a DHCP-Release Request ·····································36-5
Configuring the DHCP Relay Agent Security Functions ·······························································36-5
Configuring the DHCP Relay Agent to Support Option 82····························································36-7

Displaying and Maintaining DHCP Relay Agent Configuration·····························································36-8
DHCP Relay Agent Configuration Example·························································································
·36-8
Troubleshooting DHCP Relay Agent Configuration··············································································36-9

37 DHCP Client Configuration···················································································································37-1

Introduction to DHCP Client··················································································································37-1
Enabling the DHCP Client on an Interface ·······················································································
····37-1

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