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><H1
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><A
NAME="CUSTOMPORTS"
>Custom Information</A
></H1
><P
>  The remaining configuration items allow you to enter information which
  IPTraf uses for its displays and logs.</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN2061"
>Additional ports</A
></H2
><P
>Select this item to enter a port
  number to be included in the TCP/UDP counts in the TCP/UDP service
  statistics main menu item described above. By default,
  port numbers above 1023 are not monitored. If you do
  have a higher-numbered port to monitor, enter it here.</P
><P
>  You will see two fields. If you have only one port to enter, just fill
  up the first field. To specify a range, fill both fields, the first port
  in the first field, the last port in the second field.</P
><P
>  You can select this option multiple times to add more values or ranges.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN2066"
>Delete port/range</A
></H2
><P
>  Select this item to remove a higher-numbered port number or
  port range you entered earlier with the <I
CLASS="EMPHASIS"
>Additional
  ports...</I
> option. A window will come up
  containing the entered ports and ranges. Select the entry you want
  delete and press Enter.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN2070"
>LAN Station Identifiers</A
></H2
><P
> The LAN station statistics facility monitors stations based
  on their respective MAC addresses. The hexadecimal notation of these
  addresses make them even more difficult to remember than the
  dotted-decimal IP addresses, so these facilities were added to
  help you better determine which station is which.</P
><P
>  Selecting the <I
CLASS="EMPHASIS"
>Ethernet/PLIP host descriptions...</I
> or
  <I
CLASS="EMPHASIS"
>FDDI/Token Ring host descriptions...</I
> options brings
  up a submenu asking you to add, edit, or delete descriptions.</P
><P
>  To add a new description, select the <I
CLASS="EMPHASIS"
>Add
description...</I
> option. A dialog
  box will appear, asking you for the MAC address and an appropriate
  description. Type in the address in hexadecimal notation with no
  punctuation of any kind. The dialog box is
  case-insensitive for the address; the alphabetical digits A to F will be
  stored in lowercase.</P
><P
>  Use the Tab key to move between fields and Enter to accept. Press Ctrl+X
  to discard this dialog and return to the main menu.</P
><P
>  The description may be anything: the IP address, a fully-qualified
  domain name, or a description of your liking as long
  as the field can hold.</P
><P
>  Enter as many descriptions as you need. Press Ctrl+X at a blank dialog
  after you have entered the last entry</P
><P
>  These descriptions will be displayed alongside the MAC addresses
  in the LAN station monitor, together with the type of frame (Ethernet,
  PLIP, or FDDI).</P
><P
>  An existing address or description may be edited
by selecting the <I
CLASS="EMPHASIS"
>Edit
  description...</I
> option from the submenu. A panel will appear with a list
  of existing address descriptions. Select the one you wish to
  edit and press Enter. A dialog box identical to that
  when you add a description will appear with prefilled fields. Just
  backspace over and edit the fields. Press Enter to accept or Ctrl+X to
  cancel.</P
><P
>  Selecting the <I
CLASS="EMPHASIS"
>Delete description...</I
> submenu
  item brings up the selection panel. Select the description you want to
  delete and press Enter. You can also press Ctrl+X to cancel the operation.</P
><P
>  IPTraf 2.4 and later also recognizes the <TT
CLASS="FILENAME"
>/etc/ethers</TT
> file.
  Should a hardware address be present in the IPTraf definition files and
  in <TT
CLASS="FILENAME"
>/etc/ethers</TT
>, the IPTraf definition will be used.</P
><DIV
CLASS="NOTE"
><P
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><TH
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><B
>Note</B
></TH
></TR
><TR
><TD
>&nbsp;</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>  The description file for Ethernet and PLIP is
  <TT
CLASS="FILENAME"
>ethernet.desc</TT
>, while the FDDI and Token Ring mappings are stored
  in <TT
CLASS="FILENAME"
>fddi.desc</TT
> in the IPTraf working directory. These files are in
  colon-delimited text format. Database engines or custom scripts can be
  told to append data lines to those files. Each line follows this
  simple format:</P
><TABLE
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><TR
><TD
><PRE
CLASS="SYNOPSIS"
><TT
CLASS="REPLACEABLE"
><I
>address</I
></TT
>:<TT
CLASS="REPLACEABLE"
><I
>description</I
></TT
></PRE
></TD
></TR
></TABLE
><P
> 
 For example</P
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BORDER="0"
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><TR
><TD
><PRE
CLASS="SYNOPSIS"
>00201e457e:Cisco 3640 gateway</PRE
></TD
></TR
></TABLE
><P
>  Do not put colons, periods, or any invalid characters in the MAC address.</P
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