br2684ctl man page on Archlinux

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br2684ctl(8)							  br2684ctl(8)

       br2684ctl - RFC1483/2684 Bridge Daemon

       br2684ctl  [  -b	 ]  [[	-c n  ]	 [ -e 0|1 ] [ -p 0|1 ] [ -s sndbuf ] [
       -a [itf].vpi.vci ]] ...

       -a [itf].vpi.vci
		      ATM PVC number, VPI and VCI.  (Required)

       -b	      Puts the process in the background.

       -c n	      br2684 interface number such as 0, 1, ... (Required)

       -e 0|1	      Encapsulation method:  0=LLC, 1=VC mux (the default is 0
		      or LLC)

       -p 0|1	      Payload  method:	 0=Routed, 1=Bridged (the default is 1
		      or Bridged)

       -s sndbuf      Send buffer size. Default is 8192.

       br2684ctl handles RFC1483/2684 bridged PDUs.  This is most  often  used
       in  ADSL	 scenarios  where usually the subscribers' ethernet traffic is
       encapsulated in	ATM  AAL5  (by	bridging  ADSL	modems)	 according  to
       RFC2684.	 The subscriber-side ADSL modem can be external with an ether‐
       net connector or an internal ADSL card in a PC.	RFC1483 has been obso‐
       leted by RFC2684.

       For  example  it is possible to set up your Linux box to handle several
       ATM PVC's with bridged-1483 (sometimes referred as SNAP) encapsulation.
       The  Linux  network stack might provide DHCP, IP masquerading, IP fire‐
       wall services or bridge the Ethernet frames just like  it  had  several
       ethernet	 interfaces.   In  fact it can have several (logical) ethernet
       interfaces, where ATM is just used as a carrier.

       br2684ctl creates a new network interface named nas[n] which  is	 bound
       to  an  specific ATM PVC. It requires two mandatory arguments:  -c, the
       interface number, and -a, the ATM PVC. It  should  be  noted  that  the
       order of the command arguments matter; -c should be followed by -a. You
       can create as many interfaces as necessary in one go, just make a  long
       command line ;)

       For  example, following command will create a nas0 interface which uses
       the ATM PVC with VPI=0 and VCI=401. You need to configure the PVC  con‐
       nection 0.401 on the ATM switch manually.

       % br2684ctl -c 0 -a 0.401

       The  command  will  only	 create a new interface nas0.  Next step is to
       assign an IP address and netmask to the interface nas0 using the ifcon‐
       fig command. Using ifconfig, you can also assign a Ethernet MAC address
       to the interface nas0, if necessary.

       % ifconfig nas0 netmask

       Messages are logged to the LOCAL2 syslog facility.


       This  man  page	is  based  on  a   tutorial   by   by	Joonbum	  Byun


				  7 Jul 2003			  br2684ctl(8)

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