Paul wrote (2022-01-14):

 de>> There is an implementation of binkd that authenticates against
 de>> *each* address (there is a flag for it, but it escapes me) - but I
 de>> dont think any implementation of binkp protocol does it.

 PH> If anyone knows that version, please sing out.

Multi-authentication in one session is a half-baked solution for a problem that is bigger in scope. Also it takes two to tango (both peers would have to support it).

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