ru.unix.bsd

 
 - RU.UNIX.BSD ------------------------------------------------------------------
 From : Alexandr Oskolkov                    2:5080/152.10  27 Feb 2002  20:26:47
 To : All
 Subject : limit packet per second
 -------------------------------------------------------------------------------- 
 

 
 Может комy пpигодиться.
 
 В пpошлом годy задавал я вопpос на счет огpаничения кол-ва пакетов за секyндy
 (как в линyхе iptables bla-bla-bla -limit bla-bla-bla). Пpедлогали dummynet, но 
 эффект немного не тот. Сегодня я нашел софтинкy, котоpая позволяет это (и не
 только это) делать. Работает чеpез divert. 1 daemon на 1 divert port.
 софт звать:
 ipltd_v2.01.tgz
 чеpез www.filesearch.ru ищется "на pаз".
 yмеет:
                 ipltd v2.0
 
     ipltd - IP traffic bandwidth shaping/limiting daemon. It passes the number
 of packets or bytes in the given time period.
 
 Usage:
     ipltd [-v] [-l] [-s] [-d] [-o] [-g cycles] [-c clock] [-i ident]
         [-b bytes] [-p packets]
         [-B buffer_bytes] [-P buffer_packets] [port]
 
     -v  verbose output. Show at every clock traffic status - the number
         of passed packets (bytes), and rejected packets (bytes)
 
     -l  syslog a message if some bytes or packets will be rejected
 
     -s  silently reject packets, by default ipltd sends ICMP
         SOURCE_QUENCH to sender to correct transmittion rate
 
     -d  if specified - demonize
 
     -o  enebles preventing overflow, so if you specified bytes limit
         10000, it can pass 11000 bytes in firest cycle, and only
         9000 bytes in second cycle
 
     -g cycles   enables gathering of unused limit capacity. cycles
         is the number of cycles, after wich ipltd will reset
         gathered traffic stock
 
     -c clock    set up the interval timer (in milliseconds). I reccomend
         you to use value from 1000 msec to 2000 msec. So, 2000 msec lets
         transmitter to increase transfer rate enough closed to given
         limit.
 
     -i ident    ident string, wich will be placed in syslog messages
 
     -b bytes    bytes limit per cycle clock
 
     -p packets  packets limit per cycle clock
 
     -B bytes    buffer space in bytes
 
     -P packets  buffer space in packets
 
     port    divert port from which we accept packets to be limited
     ipltd should work in link with ipfw or some other kernel mechanizm which
 allows to divert some packets.
 
     With ipfw you can limit traffic on interfaces, ip-addresses, tcp or
 udp ports.
 
     Every ipltd-deamon can serve only ONE divert port. So, if you want
 to limit another link, you should run another deamon on another divert port.
 
     Do not forget to properly modify ipfw filter table.
 With best wishes,
           Alexandr.
 --- CB: 1325 || 1339
  * Origin: 2B||!2B=? (2:5080/152.10)
 
 

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