1. 4b32da2b ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h> by Paul Mackerras · 12 years ago
  2. 2f77a3f l2tp: Update documentation by James Chapman · 14 years ago
  3. 19f5946 trivial: Miscellaneous documentation typo fixes by Matt LaPlante · 15 years ago
  4. 58e50a9 [L2TP]: Add PPPoL2TP in-kernel documentation by James Chapman · 17 years ago