This article is from the MachTen & CodeBuilder FAQ, by Jaime Julca firstname.lastname@example.org with numerous contributions by others.
MachTen's TCP stack is from the Berkeley Reno sources and includes all the
latest protocol improvements, such as Van Jacobsen's performance
enhancements. This TCP stack is more robust, better performing and more
fully-featured than MacTCP. MachTen provides interoperability with
applications that rely on MacTCP, such as MacX and Eudora, by trapping
MacTCP internals with Tenon's mactcp daemon. This means that MacTCP
applications will automatically use MachTen's TCP stack when MachTen is