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Trusting Option 82 Information
By default, the DHCP relay agent treats client packets with a giaddr of 0 (zero) and option 82 information as if the packets originated at an untrusted source, and drops them without further processing. You can override this behavior and specify that the DHCP relay agent process DHCP client packets that have a giaddr of 0 (zero) and contain option 82 information.
To configure DHCP relay agent to trust option 82 information:
- Specify that you want to configure override options.[edit forwarding-options dhcp-relay]user@host# edit overrides
- Specify that the DHCP relay agent process DHCP client
packets with a giaddr of 0 and that contain option 82 information. [edit forwarding-options dhcp-relay overrides]user@host# set trust-option-82
