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group (DHCP Relay Agent)

date_range 19-Nov-23

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Syntax

group group-name {
    access-profile profile-name;
    active-server-group server-group-name;
    authentication {
        password password-string;
        username-include {
            circuit-type;
            client-id;
            delimiter delimiter-character;
            domain-name domain-name-string;
            interface-description  (device-interface | logical-interface);
            interface-name interface-name;
            logical-system-name;
            mac-address mac-address;
            relay-agent-interface-id;
            relay-agent-remote-id;
            relay-agent-subscriber-id;
            routing-instance-name;
            user-prefix user-prefix-string;
            vlan-tags;
        }
    }
    dynamic-profile profile-name {
        aggregate-clients (merge | replace);
        use-primary primary-profile-name;
    }
    forward-only {
        logical-system <current | default | logical-system-name>;
        routing-instance <current | default | routing-instance-name>;
    }
    interface interface-name {
        access-profile profile-name;
        exclude; 
        liveness-detection {
            failure-action (clear-binding | clear-binding-if-interface-up | log-only);
            method {
                bfd {
                    version (0 | 1 | automatic);
                    minimum-interval milliseconds;
                    minimum-receive-interval milliseconds;
                    multiplier number;
                    no-adaptation;
                    transmit-interval {
                        minimum-interval milliseconds;
                        threshold milliseconds;
                    }
                    detection-time {
                        threshold milliseconds;
                    }
                    session-mode (automatic | multihop | singlehop);
                    holddown-interval milliseconds;
                }
            }
        }
        overrides {
            allow-no-end-option;
            allow-snooped-clients;
            always-write-giaddr;
            always-write-option-82;
            asymmetric-lease-time seconds;
            asymmetric-prefix-lease-time seconds;
            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;
        }
        service-profile dynamic-profile-name;
        short-cycle-protection <lockout-min-time seconds> <lockout-max-time seconds>;
        trace;
        upto upto-interface-name;
    }
    interface-tag (DHCP Relay Server)
    liveness-detection {
        failure-action (clear-binding | clear-binding-if-interface-up | log-only);
        method {
            bfd {
                version (0 | 1 | automatic);
                minimum-interval milliseconds;
                minimum-receive-interval milliseconds;
                multiplier number;
                no-adaptation;
                transmit-interval {
                    minimum-interval milliseconds;
                    threshold milliseconds;
                }
                detection-time {
                    threshold milliseconds;
                }
                session-mode (automatic | multihop | singlehop);
                holddown-interval milliseconds;
            }
            layer2-liveness-detection {
                max-consecutive-retries number;
                transmit-interval interval;
            }
        }
    }
    overrides {
        allow-snooped-clients;
        always-write-giaddr;
        always-write-option-82;
        asymmetric-lease-time seconds;
        asymmetric-prefix-lease-time seconds;
        client-discover-match <option60-and-option82>;
        client-negotiation-match incoming-interface;
        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;
    }
    relay-agent-interface-id {
        include-irb-and-l2;
        keep-incoming-interface-id ;
        no-vlan-interface-name;
        prefix prefix;
        use-interface-description (logical | device);
        use-option-82 <strict>;
        use-vlan-id;
    }
    relay-agent-remote-id {
        include-irb-and-l2;
        keep-incoming-remote-id ;
        no-vlan-interface-name;
        prefix prefix;
        use-interface-description (logical | device);
        use-option-82 <strict>;
        use-vlan-id;
    }
    relay-option {
        option-number option-number;
        default-action {
            drop;
            forward-only; 
            local-server-group local-server-group;
            relay-server-group relay-server-group;
        }
        equals (ascii ascii-string | hexadecimal hexadecimal-string) {
            drop;
            forward-only; 
            local-server-group local-server-group;
            relay-server-group relay-server-group;
        }
        starts-with (ascii ascii-string | hexadecimal hexadecimal-string) {
            drop;
            forward-only; 
            local-server-group local-server-group;
            relay-server-group relay-server-group;
        }
    }
    relay-option-82 {
        circuit-id {
            prefix prefix;
            use-interface-description (logical | device);
            use-option-82;
        }
        remote-id {
            prefix prefix;
            use-interface-description (logical | device);
        }
        server-id-override
    }
    remote-id-mismatch disconnect;
    route-suppression;
    service-profile dynamic-profile-name;
    short-cycle-protection <lockout-min-time seconds> <lockout-max-time seconds>;
}

Hierarchy Level

[edit forwarding-options dhcp-relay],
[edit forwarding-options dhcp-relay dhcpv6],
[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

Specify the name of a group of interfaces that have a common DHCP or DHCPv6 relay agent configuration. A group must contain at least one interface. Use the statement at the [edit ... dhcpv6] hierarchy levels to configure DHCPv6 support.

Options

group-name

Name of a group of interfaces that have a common DHCP or DHCPv6 relay agent configuration.

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.

interface-tag option introduced in Junos OS Release 23.2R1

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Junos CLI Reference

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group (DHCP Relay Agent)

Syntax

Hierarchy Level

Description

Options

Required Privilege Level

Release Information

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Junos CLI Reference

ON THIS PAGE

group (DHCP Relay Agent)

Syntax

Hierarchy Level

Description

Options

Required Privilege Level

Release Information

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