04-05-2014
Thank you again Corona688, your explanation is quite logic
Now I have a subsequent question. For those recently deleted files which investigators wasn't able to recover contents nor MAC timestamps, is it normal and logic that they were able to fully recover filenames? Hence they were are able to find for each File15 to File16 its exact full name as it was supposed to exist on the file system.
I am just wondering if the filename is stored also at some address (offset and length) of the i-Node and how this info is near or far from MAC timestamps addresses and so how we can trust or not the fact that the filename was recoverable but not the MAC timestamps.
Many thanks to any one who can direct me to any official readings or statistical studies, will really appreciate
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learp(8) System Manager's Manual learp(8)
NAME
learp - Displays the contents of a LAN-Emulation Address Resolution Protocol (LE-ARP) table
SYNOPSIS
/usr/sbin/learp [-u unit_number] -a
OPTIONS
Specifies a LE-ARP cache. The unit number is the same as is displayed by the netstat -i command. For example: elan0 is unit 0, elan1 is
unit 1, and so on.
If the -u option is not specified, the default unit number is 0. Displays all entries in the LAN-Emulation Address Resolution Pro-
tocol (LE-ARP) table.
DESCRIPTION
Each LAN-Emulation Client interface (displayed as elann in netstat output) has an Address Resolution Protocol (LE-ARP) table that contains
mappings of 6-byte medium access control (MAC) addresses to 20-byte Asynchronous Transfer Mode (ATM) addresses. The learp command displays
the contents of the LE-ARP table.
Each LE-ARP table entry contains the following information: Each MAC address that has been or is being contacted through the ATM-emulated
LAN. One of the following state values: AP -- LE-ARP is pending. The ATM address associated with the MAC address is not known. DE --
Delete of the LE-ARP cache entry is pending. When there are no more VCs for a LE-ARP entry, it is marked for deletion. After there is no
activity for 5 minutes (age periond), the entry is removed for the cache. FD -- Forward Direct. Packets flowing to the destination are
using the data-direct VC. FL -- Flush is pending. A new VC has been established with the remote node and the broadcast channel is being
flushed so packets flowing on the new VC will not arrive out of order. VP -- Virtual Channel (VC) setup is pending. The ATM address is
known, but no VC is established with the remote node. If known, the 20-byte ATM address associated with the MAC address. One of the fol-
lowing flags: R -- Remote entry. The MAC address is on a legacy (that is, Ethernet) network on the back side of an ATM edge device. P --
Permanent entry. The LE-ARP entry is permanent. If known, this is the Virtual Path Identifier (VPI) and the Virtual Channel Identifier
(VCI) of the data-direct VC used by packets destined to the MAC address. Many MAC addresses may use the same VC.
EXAMPLES
The following example shows the output of a learp -a command in which the LE-ARP cache contains five entries: # learp -a le-arp cache con-
tains 5 entries.
MAC Address State ATM Address Flags VPI/VCI 08-00-2b-01-01-01 (AP) pending 08-00-2b-01-01-02 (VP)
39000000000000000000000000.08002b010102.00 pending 08-00-2b-01-02-02 (FL) 39000000000000000000000000.08002b010203.00 R 0/65
08-00-2b-01-02-03 (FD) 39000000000000000000000000.08002b010203.00 0/65
SEE ALSO
Commands: atmconfig(8), atmelan(8), atmsig(8)
learp(8)