i have configured nbar protocol on my cisco 3825 router interface that is connected with internet just to check which type of traffic is going towards internet from my users.
I shows me different types of traffic which i never allowed in my firewall like FTP. it is showing me that FTP protocol is travelling towards internet.
though my firewall connected with intenet rotuer is allowing only http and https traffic nothing else.
Also nbar state showing me some unknow protocol.
ssh 0 0
streamwork 0 0
sunrpc 0 0
syslog 0 0
tftp 0 0
xwindows 0 0
unknown 409226 372043
Total 940394 1224664
ftp 230 214
It also showing me that Edonkey software is also allowed though i didnt allow in my firewall
edonkey 3 21
If i wana see the port number of that software via nbar how to check it.
Though I didnt allow them.