You are now in the directory for the port "net/ns" (package name "ns-2.1.b9").
This is the one-line description for this port:
The UCB/LBNL Network Simulator Version 2
Please read the "description file" for a longer description.
Go to the top of the ports tree for a summary on how to use the ports collection.
This port requires package(s) "XFree86-libraries-4.2.1_5 freetype2-2.1.2_1 imake-4.2.0_1 otcl-1.0a7 perl-5.6.1_11 tcl-8.3.5 tclcl-1.0b11 tk-8.3.5" to build.
This port requires package(s) "tcl-8.3.5" to run.