CHAPTER 11
Configuring DHCP and DHCPv6 Relay
Agent
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DHCP Relay Agent on ACX Series Routers on page 368
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DHCPv6 Relay Agent on ACX Series Routers on page 370
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Inserting the DHCPv6 Interface Identifier into DHCPv6 Packets on page 371
•
Configuring Group-Specific DHCP Relay Options on page 372
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Overriding the Default DHCP Relay Configuration Settings on page 373
•
Changing the Gateway IP Address (giaddr) Field to the giaddr of the DHCP Relay
Agent on page 376
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Replacing the DHCP Relay Request and Release Packet Source Address on page 376
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Overriding Option 82 Information on page 377
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Using Layer 2 Unicast Transmission for DHCP Packets on page 377
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Trusting Option 82 Information on page 378
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Specifying the Maximum Number of DHCP Clients Per Interface on page 378
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Automatically Logging Out DHCP Clients on page 380
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Sending Release Messages When Clients Are Deleted on page 381
•
Disabling Automatic Binding of Stray DHCP Requests on page 381
•
Using DHCP Relay Agent Option 82 Information on page 383
•
Using DHCP Option Information to Selectively Process DHCP Client Traffic on page 390
•
Understanding DHCP Option 82 for Protecting Switching Devices Against
Attacks on page 392
•
Configuring DHCP Option 82 to Help Protect the Switching Devices Against Attacks
(CLI Procedure) on page 396
•
Configuring Named Server Groups on page 398
•
Configuring Active Server Groups to Apply a Common DHCP Relay Agent Configuration
to Named Server Groups on page 398
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Disabling DHCP Relay on page 399
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