[Bug 42412] New: WinUAE 3.4.0: Networking over Slirp in AmigaOS 4.1 works bad.

https://bugs.winehq.org/show_bug.cgi?id=42412

Bug ID: 42412
           Summary: WinUAE 3.4.0: Networking over Slirp in AmigaOS 4.1
                    works bad.
           Product: Wine
           Version: 2.0
          Hardware: x86
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winsock
          Assignee: [e-mail]
          Reporter: [e-mail]

When using WinUAE (both version 3.3.0 and 3.4.0) with slirp networking (only
way when running AmigaOS 4.1), network transfers gets damaged (md5 and file
size doesn't match) whether it's downloaded from internet or from local file
server.
This happens both on 32bit and 64bit Wine and WinUAE.
Changing the MTU value on the AmigaOS side doesn't help either.

I suspect this has something to do with the issue:

fixme:winsock:set_dont_fragment IP_DONTFRAGMENT for IPv4 not supported in this
platform.

The author of WinUAE also suspects this is the problem:
"IP_DONTFRAG (or IP_MTU_DISCOVER and friends) are not defined in some platform
specific file"

Currently using Wine 2.0-staging and macOS 10.11.6