RFC\ 1122 for the host requirements.
.br
RFC\ 1191 for a description of path MTU discovery.
+.SH COLOPHON
+This page is part of release 3.64 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.