diff options
| author | Garrett Wollman <wollman@FreeBSD.org> | 1997-12-08 21:42:35 +0000 |
|---|---|---|
| committer | Garrett Wollman <wollman@FreeBSD.org> | 1997-12-08 21:42:35 +0000 |
| commit | 0bfc6e67069a0cdb1a85fbc0bd93267e471b8027 (patch) | |
| tree | 302b8c0b1d3257e8cfa3b6f6a3cf179fa13cf454 /contrib/tcpdump/print-ether.c | |
| parent | e0572d523f0cb02c92f6cff34aa73304a4720aca (diff) | |
Notes
Diffstat (limited to 'contrib/tcpdump/print-ether.c')
| -rw-r--r-- | contrib/tcpdump/print-ether.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/contrib/tcpdump/print-ether.c b/contrib/tcpdump/print-ether.c index 2c92d4f105ef..cabbe2bf2d73 100644 --- a/contrib/tcpdump/print-ether.c +++ b/contrib/tcpdump/print-ether.c @@ -158,6 +158,13 @@ int ether_encap_print(u_short ethertype, const u_char *p, u_int length, u_int caplen) { + if (ethertype == 0x8100) { /* IEEE 802.1Q vlan tagging encapsulation */ + printf ("[vlan %d] ", ntohs(*(u_short *)p) & 0x17ff); + ethertype = ntohs(((u_short *)p)[1]); + p += 4; + length -= 4; + caplen -= 4; + } extracted_ethertype = ethertype; switch (ethertype) { |