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dhcpv6 (DHCP Relay Agent)

date_range 19-Nov-23

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Syntax

dhcpv6 {
    access-profile profile-name;
    active-leasequery {
        idle-timeout seconds;
        peer-address address;
        timeout seconds;
        topology-discovery;
    }
    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;

        }
    }
    bulk-leasequery {
        attempts number-of-attempts;
        timeout seconds;
        trigger automatic;
    }
    duplicate-clients incoming-interface;
    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>;
    }
    forward-only-replies;
    }
    forward-snooped-clients (all-interfaces | configured-interfaces | non-configured-interfaces);
    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;
                logical-system-name;
                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;
            dynamic-profile profile-name {
                aggregate-clients (merge | replace);
                use-primary primary-profile-name;
            }
            exclude; 
            overrides {
                allow-snooped-clients;
                asymmetric-lease-time seconds;
                asymmetric-prefix-lease-time seconds;
                client-negotiation-match incoming-interface;
                delay-authentication;
                delete-binding-on-renegotiation;
                dual-stack dual-stack-group-name;
                interface-client-limit number;
                no-allow-snooped-clients;
                no-bind-on-request;
                relay-source interface-name;
                send-release-on-delete;
            }
            service-profile dynamic-profile-name;
            short-cycle-protection <lockout-min-time seconds> <lockout-max-time seconds>;
            trace;
            upto upto-interface-name;
        }
        }
        lease-time-validation {
            lease-time-threshold seconds;
            violation-action action;
        }
        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;
            asymmetric-lease-time seconds;
            asymmetric-prefix-lease-time seconds;
            client-negotiation-match incoming-interface;
            delay-authentication;
            delete-binding-on-renegotiation;
            dual-stack dual-stack-group-name;
            interface-client-limit number;
            no-allow-snooped-clients;
            no-bind-on-request;
            relay-source interface-name;
            send-release-on-delete;
        }
        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;
        }
        relay-agent-remote-id {
            include-irb-and-l2;
            keep-incoming-interface-id ;
            no-vlan-interface-name;
            prefix prefix;
            use-interface-description (logical | device);
            use-option-82 <strict>;
        }
        relay-option {
            option-number option-number;
            default-action {
                drop;
                forward-only; 
                relay-server-group relay-server-group;
            }
            equals (ascii ascii-string | hexadecimal hexadecimal-string) {
                drop;
                forward-only; 
                relay-server-group relay-server-group;
            }
            starts-with (ascii ascii-string | hexadecimal hexadecimal-string) {
                drop;
                forward-only; 
                relay-server-group relay-server-group;
            }
        }
        remote-id-mismatch disconnect;
        route-suppression;
        service-profile dynamic-profile-name;
        short-cycle-protection <lockout-min-time seconds> <lockout-max-time seconds>;
    }
    leasequery {
        attempts number-of-attempts;
        timeout seconds;
    }
    lease-time-validation {
        lease-time-threshold seconds;
        violation-action action;
    }
    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;
            }
            route-suppression;
            service-profile dynamic-profile-name;
        }
    }
    no-snoop;
    overrides {
        allow-snooped-clients;
        asymmetric-lease-time seconds;
        asymmetric-prefix-lease-time seconds;
        client-negotiation-match incoming-interface;
        delay-authentication;
        delete-binding-on-renegotiation;
        dual-stack dual-stack-group-name;
        interface-client-limit number;
        no-allow-snooped-clients;
        no-bind-on-request;
        relay-source interface-name;
        send-release-on-delete;
    }
    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;
    }
    relay-agent-remote-id {
        include-irb-and-l2;
        keep-incoming-interface-id ;
        no-vlan-interface-name;
        prefix prefix;
        use-interface-description (logical | device);
        use-option-82 <strict>;
    }
    relay-option {
        option-number option-number;
        default-action {
            drop;
            forward-only; 
            relay-server-group relay-server-group;
        }
        equals (ascii ascii-string | hexadecimal hexadecimal-string) {
            drop;
            forward-only; 
            relay-server-group relay-server-group;
        }
        starts-with (ascii ascii-string | hexadecimal hexadecimal-string) {
            drop;
            forward-only; 
            relay-server-group relay-server-group;
        }
    }
    relay-option-vendor-specific{
        host-name;
        location;
    remote-id-mismatch disconnect;
    route-suppression;
    server-group {
        server-group-name {
            server-ip-address;
        }
    }
    server-response-time seconds;
    service-profile dynamic-profile-name;
    short-cycle-protection <lockout-min-time seconds> <lockout-max-time seconds>;
}

Hierarchy Level

[edit forwarding-options dhcp-relay],
[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

Configure DHCPv6 relay options on the router or switch and enable the router or switch to function as a DHCPv6 relay agent. A DHCPv6 relay agent forwards DHCPv6 request and reply packets between a DHCPv6 client and a DHCPv6 server.

The DHCPv6 relay agent server is fully compatible with the extended DHCP local server and DHCP relay agent. However, the options configured with the dhcpv6 statement are incompatible with the DHCP/BOOTP relay agent options configured with the bootp statement. As a result, the DHCPv6 relay agent and the DHCP/BOOTP relay agent cannot be enabled on the router or switch at the same time.

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 11.4.

Support for forward-snooped-clients introduced in Junos OS Release 15.1X53-D56 for EX Series switches and Junos OS Release 17.1R1.

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dhcpv6 (DHCP Relay Agent)

Syntax

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Junos CLI Reference

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dhcpv6 (DHCP Relay Agent)

Syntax

Hierarchy Level

Description

Required Privilege Level

Release Information

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