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Instalation.

0. Prepare the latest USAGI snapshot.
2. install usagi.
   Please refer to the file usagi/doc/INSATLL.USAGI extracted
   from the tar-ball.

   In kernel configuration, following steps are also needed.
   
2-1. configure kernel.

   % make menuconfig (or xconfig, etc...)

  At least, these five options should be enabled.

   in "Code maturity level options"
    [*] Prompt for development and/or incomplete code/drivers
   in "Networking options"
    <*>   The IPv6 protocol (EXPERIMENTAL)
    [*] Asynchronous Transfer Mode (ATM) (EXPERIMENTAL)
    [*]   Classical IP over ATM
    [*]     IPv6 Enhance for ATM

4. finish the steps in INSATLL.USAGI.
5. compile and install ATM.
   (assume you are in usagi/ extracted from the tar-ball)

   % cd src/atm
   % make depend
   % make 
   % make install

   (caution: atm.patch in this directory is needless to apply to
    the kernel.)

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Command usage

1. create a network interface.

   % pvctool -c [N]

# N represents the serial number of network interface created.
# You can ommit N.

   This command will return N if succeeded.

2. set up a PVC.

   % pvctool -S N [itf.]vpi.vci

# N is same as the number descrived above. itf, vpi and vci
# represent ATM interface number, vpi number, vci number respectively.
# You can ommit itf.

3. up network interface
# Assume above N to be 0.

   %ifconfig atm0 up

4. add address to the interface if you need.

   % ifconfig atm0 add (address of this IF) (address of peer IF) 

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