X-Git-Url: https://git.tcpdump.org/libpcap/blobdiff_plain/a685965f2f4131bf72694ff606020ca57e3399a0..e29e700736184e9cdd1811f1ee17ab8ee4fcf176:/pcap/bpf.h

diff --git a/pcap/bpf.h b/pcap/bpf.h
index c5a11d32..91f33eb5 100644
--- a/pcap/bpf.h
+++ b/pcap/bpf.h
@@ -938,6 +938,9 @@ struct bpf_version {
  * A zone number of 0 is the global zone; a zone number of 0xffffffff
  * means that the packet arrived from another host on the network, not
  * from another zone on the same machine.
+ *
+ * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates
+ * which of those it is.
  */
 #define DLT_IPNET			226