constcast
/
vermont
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

IP_HEADER_OFFSET doesn't exist any longer

master
Lothar Braun 2013-09-29 16:55:25 +02:00
parent 223b851a2f
commit 52a600804b
1 changed files with 0 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
README
View File

@ -185,20 +185,6 @@ Use Ctrl-C to stop VERMONT. If VERMONT does not exit properly, enter Ctrl-C
for a second time.
--------------------------------------
TRAFFIC CAPTURING AT VLAN MIRROR PORTS
--------------------------------------
VERMONT can be used to capture traffic at a mirror port of a switch. If
the mirror port is configured for VLAN traffic, the Ethernet frames will
usually include a VLAN tag in the Ethernet header, increasing the header
length from 14 to 18 bytes.
In order to capture such traffic correctly, you need to set the cmake
option IP_HEADER_OFFSET to 18. Furthermore, make sure that the observer
is configured with <pap_filter> parameter set to "vlan and ip".
----------------------------------------------------
OPERATION AS COLLECTOR: TUNING SOCKET RECEIVE BUFFER
----------------------------------------------------