CHAPTER 4
DHCP Relay Agent
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Extended DHCP Relay Agent Overview on page 46
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Configuring an Extended DHCP Relay Server on EX Series Switches (CLI
Procedure) on page 49
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Example: Minimum DHCP Relay Agent Configuration on page 50
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DHCP Relay Proxy Overview on page 51
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Enabling DHCP Relay Proxy Mode on page 52
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Example: Configuring DHCP Relay Agent Selective Traffic Processing Based on DHCP
Option Strings on page 53
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Using Layer 2 Unicast Transmission for DHCP Packets on page 58
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Sending Release Messages When Clients Are Deleted on page 58
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Disabling Automatic Binding of Stray DHCP Requests on page 59
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Using DHCP Relay Agent Option 82 Information on page 60
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Trusting Option 82 Information on page 67
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Overriding the Default DHCP Relay Configuration Settings on page 68
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Overriding Option 82 Information on page 71
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Changing the Gateway IP Address (giaddr) Field to the giaddr of the DHCP Relay
Agent on page 72
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Replacing the DHCP Relay Request and Release Packet Source Address on page 72
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Enabling and Disabling DHCP Snooped Packets Support for DHCP Relay
Agent on page 72
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Configuring DHCP Snooped Packets Forwarding Support for DHCP Relay
Agent on page 77
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Configuring Named Server Groups on page 79
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Configuring Active Server Groups to Apply a Common DHCP Relay Agent Configuration
to Named Server Groups on page 80
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Disabling DHCP Relay on page 80
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Verifying and Managing DHCP Relay Configuration on page 81
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Suppressing DHCP Access, Access-Internal, and Destination Routes on page 81
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Preventing DHCP from Installing Access, Access-Internal, and Destination Routes by
Default on page 82
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