Junos OS

Hi,

We have the following network environment:

• PON OLT – DHCP snooping enabled

• MX204 – DHCP relay

• DHCP Server

The PON OLT has DHCP snooping enabled for both IPv4 and IPv6. For IPv4, the OLT inserts a value using Option 82, allowing us to easily track DHCP leases-this works perfectly.

For IPv6, we are attempting to insert the same value using Option 37. However, once we enable this, our MX router starts dropping the packets and logs them as "Bad Options."

If we disable the insertion of Option 37, everything works fine.

I've attached the forwarding-options configuration for reference.

dhcpv6 {
    overrides {
        delete-binding-on-renegotiation;
    }
    group G2v6 {
        active-server-group S2v6;
        relay-agent-remote-id {
            keep-incoming-remote-id;
        }
        interface ae0.2045;
    }
    relay-agent-remote-id {
        keep-incoming-remote-id;
    }
    server-group {
        S2v6 {
            dhcp:serv:er12::2;
        }
    }
    no-snoop;
}
overrides {
    trust-option-82;
    delete-binding-on-renegotiation;
}
forward-only;
server-group {
    S2 {
        10.10.10.10;
    }
group G2 {
    active-server-group S2;
    interface ae0.2045;
}
no-snoop;

According to the documentation on Option-37 it says "Note: 

DHCPv6 packets that already contain option 37 information when received from a client are dropped by the switch."

Is there a specific configuration change required on the MX204 to support Option 37?
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ESAA
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