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Home Documentation Junos OS Junos CLI Reference CLI Reference O

Junos CLI Reference

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Junos CLI Reference
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overrides (DHCP Relay Agent)

date_range 19-Dec-23
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Syntax

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overrides {
    allow-no-end-option;
    allow-snooped-clients;
    always-write-giaddr;
    always-write-option-82;
    asymmetric-lease-time seconds;
    asymmetric-prefix-lease-time seconds;
    bootp-support;
    based-on {
     (option-60 {..} | option-77 {..} | option-82 {..})

    client-discover-match <option60-and-option82 | incoming-interface>;
    client-negotiation-match incoming-interface;
    delay-authentication;
    delete-binding-on-renegotiation;
    disable-relay;
    dual-stack dual-stack-group-name;
    interface-client-limit number;
    layer2-unicast-replies;
    no-allow-snooped-clients;
    no-bind-on-request;
    proxy-mode;
    relay-source
    replace-ip-source-with;
    send-release-on-delete;
    trust-option-82;
}

Hierarchy Level

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[edit forwarding-options dhcp-relay],
[edit forwarding-options dhcp-relay dhcpv6],
[edit forwarding-options dhcp-relay dhcpv6 group group-name],
[edit forwarding-options dhcp-relay dhcpv6 group group-name interface interface-name],
[edit forwarding-options dhcp-relay group group-name],
[edit forwarding-options dhcp-relay group group-name interface interface-name],
[edit logical-systems logical-system-name forwarding-options dhcp-relay ...],
[edit logical-systems logical-system-name routing-instances routing-instance-name forwarding-options dhcp-relay ...],
[edit routing-instances routing-instance-name forwarding-options dhcp-relay ...]

Description

Override the default configuration settings for the extended DHCP relay agent. Specifying the overrides statement with no subordinate statements removes all DHCP relay agent overrides at that hierarchy level. Use the statement at the [edit ... dhcpv6] hierarchy levels to configure DHCPv6 support.

M120 and M320 routers do not support DHCPv6.

The following statements are supported at both the [edit ... dhcp-relay] and [edit ... dhcpv6] hierarchy levels.

  • allow-snooped-clients

  • asymmetric-lease-time

  • delete-binding-on-renegotiation

  • dual-stack

  • interface-client-limit

  • no-allow-snooped-clients

  • no-bind-on-request

  • relay-source

  • send-release-on-delete

The following statements are supported at the [edit ... dhcpv6] hierarchy levels only.

  • asymmetric-prefix-lease-time

All other statements are supported at the [edit ... dhcp-relay] hierarchy levels only.

The remaining statements are explained separately. Search for a statement in CLI Explorer or click a linked statement in the Syntax section for details.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 8.3.

Support at the [edit ... dhcpv6] hierarchy levels introduced in Junos OS Release 11.4.

Related Documentation

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