Follow-up from "Resolve "memory leak when named attempts to listen on FreeBSD virtual interface""
The following discussion from !4823 (merged) should be addressed:
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@sgoldlust started a discussion: - If an outgoing packet exceeded max-udp-size, it was dropped instead of sending a proper response. To address this issue, the IP_DONTFRAG settings on UDP sockets, which were enabled during DNS Flag Day 2020, were rolled back.