NAME

       zeppelin - ATM LAN Emulation client demon (LED) Zeppelin

SYNOPSIS

       zeppelin     [-b ]     [-c LECS_address | -s LES_address]    [-e esi]    [-n VLAN_name]    [-m mesg_mask]
       [-l listen_address | selector]            [-i interface_number]            [-I physical_interface_number]
       [-t 1516|1580|4544|9234|18190] [-1 ] [-2 ] [-p ] [-F logfile] [-f Fore_specific_name]

DESCRIPTION

       A  LAN  Emulation  Client  is  an  entity  in  an  ATM  endstation that performs data forwarding, address
       resolution and other control functions.  It  uses  the  LUNI  interface  when  communicating  with  other
       components  in  emulated  LANs.  It  provides  upper protocol layers a MAC like interface similar to IEEE
       802.3/Ethernet or IEEE 802.5/Token Ring LAN.

       LAN Emulation client code is divided into two parts: user space application LAN  Emulation  Demon  called
       (LED) zeppelin(8), and the kernel component. Zeppelin is responsible for control operations needed in LAN
       Emulation  clienthood.  It  forms  the  necessary  VCCs  and  receives all the LE control frames and acts
       accordingly. It also controls the operation of the LEC kernel component.

       Linux LEC supports only Ethernet type of emulated LAN.

       SIGHUP causes restart of the LEC. All resources are released and zeppelin is started.

OPTIONS

       -b     Run in background (i.e. in a forked child process) after initializing kernel interface.

       -c LECS_address
              ATM address of lecs(8) (Lan Emulation Configuration Server), if not set, Well-Known server address
              is used.

       -s LES_address
              ATM address of les(8) (Lan Emulation Server), can be used  in  bypassing  configuration  phase  in
              joining emulated Lan i.e lecs address is not used.

       -e esi Mac address to use when communicating in Emulated LAN. E.g. 00:20:22:23:04:05 .

       -n VLAN_name
              Name  of  the  virtual LAN to which joining is requested.  This is used in LE_CONFIGURE_REQUEST to
              LECS or LE_JOIN_RESPONSE to LES, if configuration phase is bypassed.

       -m mesg_mask
              Sometimes one wants to know more what is happening in LE daemon e.g. when nothing works. This is a
              hexadecimal long value setting global message mask. 0 = No messages, ffff = All messages.

       -l listen_address | selector
              Local ATM address that zeppelin uses as local binding point in signalling. Use  this  if  you  are
              running  more  than  one  client or a set of LE servers. The local ATM address can be specified by
              either giving the full ATM address or the desired selector byte.

       -i interface_number
              Linux LEC supports up to 40+8 network interfaces. The interface_number tells zeppelin to which  of
              these  to  attach.  Ethernet type network interfaces are numbered from "lec0" to "lec39" and Token
              Ring interfaces are from "lec40" to "lec47". These parameters  are  tweakable  during  the  kernel
              compile, see <linux/atmlec.h>.

       -I physical_interface_number
              The  physical  interface  this  LANE  client should bind to. If your host has multiple ATM network
              cards, you can use this option to choose which card this zeppelin will use.

       -t MTU The MTU of ELAN to join. You need to also use ifconfig(8) to set the MTU of the LANE interface.

       -1     Run as LANEv1 client. This is the default.

       -2     Run as LANEv2 client. This is required by MPOA.

       -p     Enable proxy. When started with this option, it is possible to  bridge  packets  between  ATM  and
              Ethernet.  That  is, you can use LANE interfaces with normal bridging. See the Bridging mini-Howto
              for more info.

       -F logfile
              Instead of writing debug messages to stderr, write the messages to the file logfile. Use syslog as
              the file name to use the syslog(3) facility.

       -f Fore specific name
              The LANE servers on Fore ATM switches can display a special name if a client can supply one.  This
              name shows with command ´conf lane les show advanced´.

TOKEN RING CONSIDERATIONS

       A  number  of lec interfaces is reserved for Token Ring ELANs when the kernel is compiled with Token Ring
       (CONFIG_TR) support. See the discussion about interface_number command line option above. The Linux Token
       Ring LANE client does not support bridging between legacy Token Ring and ATM parts of the ELAN, so  using
       the  -p  option  is  not  recommended.  Token  Ring  support  has received less testing than its Ethernet
       counterpart.

FILES

       /var/run/lec[interface number].pid
              The file containing the process id of zeppelin.

BUGS

       John Bonham died 1980 and Led Zeppelin broke.

       Please report any other bugs to Heikki Vatiainen <hessu@cs.tut.fi>

AUTHORS

       Marko Kiiskila, TUT <carnil@cs.tut.fi> and Heikki Vatiainen, TUT <hessu@cs.tut.fi>

SEE ALSO

       lecs(8), mpcd(8), atmsigd(8), les(8), qos(7)

Linux                                             Nov 29, 1999                                       zeppelin(8)