Added comments about tunnel magic numbers

2006-06-08 16:33:53 +00:00 · 2006-06-08 16:33:53 +00:00 · f2f163adbd
parent 45af515f19
commit f2f163adbd
1 changed files with 2 additions and 2 deletions
--- a/dnstund.c
+++ b/dnstund.c
@ -97,9 +97,9 @@ tunnel(int tun_fd, int dns_fd)
 					
 					frame->flags = htons(0x0000);
 #ifdef LINUX
-					frame->proto = htons(0x0800);
+					frame->proto = htons(0x0800);	// Linux wants ETH_P_IP
 #else
-					frame->proto = htons(0x0002);
+					frame->proto = htons(0x0002);	// BSD wants AF_INET as long word
 #endif
 					write_tun(tun_fd, frame, buflen + 4);
 				}