Configuring the DHCP External Server to Support the Creation of Dynamic Subscriber Interfaces

You can configure the DHCP external server to support the creation of dynamic subscriber interfaces. This configuration requires that the user’s DHCP control traffic and data traffic traverse the same client-facing ingress port on the E Series router.

You must use the ip dhcp-external auto-configure command within a specific virtual router context.

To configure the DHCP external server to support the creation of dynamic subscriber interfaces:

To configure the DHCP external server to support the creation of dynamic subscriber interfaces built over dynamic VLANs that are based on the agent-circuit-id option (suboption 1) of the option 82 field in DHCP messages, include the agent-circuit-identifier keyword.

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