This article is from the MachTen & CodeBuilder FAQ, by Jaime Julca firstname.lastname@example.org with numerous contributions by others.
* Tenon's TCP stack supports an unlimited number of TCP connections;
MacTCP is effectively limited to 48 connections.
* Tenon's TCP stack supports multihoming. This lets you have multiple
network interfaces for redundancy, and lets you use your Macintosh as
an IP router.
* Tenon's TCP employs buffering and window management strategies and
packet retransmission algorithms that maximize both WAN and LAN
* Tenon's TCP includes management options to support statistics reporting
and reconfiguration without rebooting.
* Tenon's TCP allows multiple routing entries and dynamic routing; MacTCP
supports a single default route.
* Tenon's TCP supports multiple domain name servers, both local and
remote, and uses a standard 'hosts' file; MacTCP supports a single
remote name server and uses a non-standard 'hosts' file.
* Tenon's TCP supports multicasting. This allows MachTen to be used as a
* Tenon's TCP stack supports IP aliasing, and enables multiple IP
addresses on a single network interface.