  긴 ̴ Ͽ
  Christopher Cole  cole@coledd.com
  v1.11, 7 September 1998
   ٿ sahara74@netkorea.co.kr
  v1.0, 16 December 1998

    ̴ 긴 ϴ  Ѵ. ̴ 긴
  ΰ?  ̴ 긴 Ʈ  ̷ õ ݳ
  Ÿ Ŷ ϴ ġ̴. 긴 Ϲ ΰ и
  ׷ ǻ͵(̷ ǻ͵ ׵鳢 Ŷ  ְ 
  ٸ ׷ ǻ͵  ׷   ʴ) ̿ ġѴ.
  Ų ׷ н ӽ ׷  ؼ Ѵٸ  
  ɰ̴. ̷ ǻ ׷ Ѵ ڽ ׷ ̿ 
  ٽ   ְ, ׵ Ʈũ󿡼   
  Ʈ ο ̾߱ Ϸ õϰ ִ ݴ ǻ͵ Ͽ
  浹 ߱ Ų. 긴 ̷ ׷ ǻ͵ ̿ ġϰԵ
  . ׷Ƿ 긴  ѹ ŸŶ  ϰ
  ̴ ٸ κ Ŷ ųΰ ƴѰ ϴ
  ̴.    浹    Ʈũ Եȴ.
  ______________________________________________________________________

  

  1. 
  2. Ϲ .

  ______________________________________________________________________

  1.  

  1. ``Bridge Config''α׷ ϶:

       <ftp://shadow.cabi.net/pub/Linux/BRCFG.tgz>

  2.  ǻͿ  ̴ ġ  ֵ
     /etc/lilo.confϿ  ߰Ű lilo  Ű:

       append = "ether=0,0,eth1"

   긴   ̽  ִٸ,  
   :

       append = "ether=0,0,eth1 ether=0,0,eth2"

  ether  ߰ŰǷν   ̽ ߰ߵɼ ִ. ⺻
     Ŀ ϳ ̴ī常 Žϰ,  ãԵǸ
  Ž  .   append ϳ ã Ŀ Ŀ 
  ̴ ġ Žϵ .

  , Ʈ Ķͷ   ִ:

       linux ether=0,0,eth1

  Ǵ  ̽϶   :

       linux ether=0,0,eth1 ether=0,0,eth2

  3. BRIDGINGɼ (enable)ϰ  Ŀ ٽ  ϶.

  4. 긴 IPּҸ  ȵȴ.  ,׷ 
     긴   ʿ䰡 .   긴  IPּҸ
     ϱ /etc/sysconfig/network-scripts/ (
     ý̶)  ifcfg-lo0  ifcfg-eth0 &ifcfg-eth1 Ϸ
     縦 ϶.   ΰ eth Ͽ ``DEVICE=lo'' 
     ϴ  ``DEVICE=eth0'' ``DEVICE=eth1'' ٲپ.  ٸ
     ǵ Ƹ ̿ʹ ٸ̴.   ʿ䰡 ִ 
     ϶! ࿡  긴 ΰ ̽  ִٸ, ű⿡
       ϱٶ.

  5.  ϶,  긴  ο Ŀ ǰ ִ.
      Ʈũ ̽ IPּҰ Ҵ ȵǾ ִ Ȯ϶.

  6. ý Ǹ,̴ī带 promiscuous ϶. 
     ̽ ؼ   Ŷ  ɰ̴:

       ifconfig eth0 promisc ; ifconfig eth1 promisc

  긴 ִ Ʈũ   ̽ promiscuous  
   ߸ Ѵ.

  7.   brcfg α׷ Ἥ 긴 Ѷ:

       brcfg -ena

  8.  ̽ ٸ Ʈ ִ Ȯ϶:

       tcpdump -i eth0      (in one window)
       tcpdump -i eth1      (in another window)

  9. 긴 κ   иǴ Ȯϱ ٸ
     ǻͿ (sniffer) tcpdump Ѷ.

  2.  Ϲ .

  1.

     Question
          ޽ Ե˴ϴ.

          ioctl(SIOCGIFBR) failed: Package not installed

     ̰  ϴ°ǰ?

     Answer
         Ŀο 긴 ɷ ϴ. 2.0̳  ֽ
        Ŀ . ׸, BRIDGINGɼ ؼ ٽ 
        ϼ.

  2.

     Question
         ǻ͵ ݴ (ping) Ҽ ϴ.

     Answer

       ``brcfg -ena'' ؼ 긴 enable׳?  (brcfg
        ``bridging is ENABLED'' ؾ߸ մϴ.)

       ̴ ī promiscuous 忡 ҽϱ?
        (``ifconfig'' .  ̴ ̽ ʴٿ
        ``PROMISC''÷װ Ÿ մϴ.)

        -̵ ̽ (multiple-media interface
        adapters) Ѵٸ, Ȯϰ Ǿ Ȯغʽÿ.
        Ƹ  Ʈũ ̽ ī忡  config/setup
        α׷   ʿ䰡  𸨴ϴ.

  3.

     Question
        긴  telnet/ftp  Ҽϴ. ϱ?

     Answer
        ̰  긴 ̽ IPּҰ ҴǾ 
        ʱ⶧ ϴ. 긴 Ʈũ  κ̾ մϴ.

  4.

     Question
        ÿ ؼ ϴµ  ʿմϱ?

     Answer
        ʿѰ ϴ.   Ŀγ 긴 ڵ忡 
         ϴ. ׵ 긴  ˰Եɶ ̴ 巹
        ˰ʹ , brcfg α׷   غʽÿ:

     brcfg -deb

  5.

     Question
        긴 ۵ϴ° ó ̴µ,  ``traceroute'' 
        Ѻκ  긴  ʳ?

     Answer
        긴  ,``traceroute'' 긴  Ѻκ
         ༭ ȵ˴ϴ.  긴 Ʈũ  κ̾
        մϴ.

  6.

     Question
        Ŀο IP_FORWARD ɼ ְ   ʿ䰡 ֽϱ?

     Answer
        ƴϿ. Ŀγ 긴 ڵ Ŷ  մϴ.
        IP_FORWARD ̽ Ҵ IP 巹  ִ
        Ʈ̸  Դϴ.

  7.

     Question
        ``brcfg''α׷  Ʈ1 Ʈ2  ̴
        巹   ?  ޶  ʳ?

     Answer
         ޶ մϴ. 긴  Ʈ 긴 ڵ忡 
        ǵ     ̴ 巹 Ҵ˴ϴ.

  8.

     Question
        Ŀ  make config Ҷ Bridgingɼ Ÿ
        ʽϴ.   enableŰ?

     Answer
        Ŀ ߿,``Prompt for development and/or incomplete
        code/drivers (CONFIG_EXPERIMENTAL) [Y/n/?]''  ؼ
        'Y' 亯Ͻʽÿ.

  9.

     Question
        ʷ(ķ)  ʹ  (4 Ǵ
        ̻)    Ÿ̹ (timing problems)
        ϴ.  ȭ  ݿ 긴  ȿ
        ?

     Answer
        긴 3/4/5  Ģ ʱȭŵϴ. 긴 갡
        Ŷ ٷ ׷  Ŷ ٷ ʽϴ. ׷Ƿ
         Ʈũ Ÿ̹    ټϴ.

  10.

     Question
        긴 ̽ 10Mb ̴ݰ 100Mb ̴ ʿ
        մϱ?  ׷   ӵ ̽
        Ʈ  ӵ ϰ Ͼ?

     Answer
        ,긴 100Mb 10Mb ӵ Բ  ֽϴ. 
        Ʈ ũ Ʈũ ī尡 100Mbӵ ɷ ִ,TCP
          ̴ϴ. 100Mbӵ Ʈũ ִ ȣƮ 
        10Mb Ʈũ ִ ȣƮ  Ŷ  
        10Mb/sӵ ̴   Դϴٸ,  ̴ݻ
        Ʈ  Ŷ ӵϰ  ̴ϴ.

