show ip cache flow
show ip flow top-talkers
and various debug commands. For example:
Router#sh ip cache flow | i Fa1/0.6
Fa0/1.6 10.5.188.158 Tu101* 10.5.24.15 06 0DA7 6D61 345
I have no idea what the port numbers in columns six and seven are. Fortunately, if the IOS device has the TCL or Bash shells available, we can quickly convert them.
Method 1: Tcl ShellMost routers have the Tcl shell available:
Router(tcl)#puts [expr 0xda7]
Router(tcl)#puts [expr 0x6d61]
You could write a callable Tcl script to make this permanently available from normal EXEC mode too.
Method 2: Bash ShellThe Bash shell came out in one of the early IOS 15.0 versions, so you may or may not have it available. You need to explicitly enable it by entering "shell processing full" in global configuration mode.
Router#sh run | i shell
shell processing full < required to enable Bash in IOS 15+
Router#printf "%d" 0xda7
Router#printf "%d" 0x6d61