  Wireless Howto
  Roberto Arcomano berto@bertolinux.com
  v1.7 - August 23, 2002
  { - ؑ q<t-kimura@po.shiojiri.ne.jp>
  v1.7.j - Feb 14, 2003

  CX́A(ő 11 Mbps)ɒʐMlbg[NJ[h̐VZp
  łB͂̕ł́ALinux gCX̍\z@AC
  XJ[ȟ̖݊AzuɂvȂǁA낢Ɛ
  ܂B͂̍̕ŐVł́Ahttp://www.bertolinux.com
  <http://www.bertolinux.com>ɂ܂B
  ______________________________________________________________________

  ڎ

  1. ͂߂
     1.1 ͂߂
     1.2 Copyright
     1.3 |Ɋւ
     1.4 Credits/ӎ

  2. {ɓO
     2.1 CX Ƃ͉ł傤H
     2.2 CXlbg[NɂőʐM͂ǂ̒xł?
     2.3 P[uŌqꂽlbg[NƁACXlbg[NƂ̈Ⴂ͉ł傤?
     2.4 CXlbg[N\zɂ́AǂȒmKvł傤?
     2.5 ȂCXlbg[N̍\zׂȂ̂ł傤? ܂ꂩ牽҂ł̂ł傤?
     2.6  HOWTO ł́AǂȃCXJ[hɑΉĂ̂ł?
     2.7 ǂ̂炢̔p̂ł傤?

  3. CXɊւZp
     3.1 w
     3.2 \
     3.3 ݊
     3.4 AhzbNE[hƃCtXgN`E[hAǂgׂł傤?
     3.5 Linux Box ́AANZX|CgƂĎg܂?

  4. c[ box ̕Kv
     4.1 n[hEFAƂĂ̕Kv
     4.2 \tgEFAƂĂ̕Kv

  5. CXlbg[N\z̊Tv
     5.1 bIȒiK
     5.2 ჌x̃J[lݒ
     5.3 f[^Nw̐ݒ
     5.4 IP ̐ݒ
        5.4.1 ȒPȍ\
        5.4.2 ƕGȍ\
        5.4.3 C^[lbgւ̃ANZX
        5.4.4 P[uŌqlbg[NƃCXlbg[N݂Ăꍇ

  6. ݒ
     6.1 ʓIȐݒ
     6.2 Proxim Symphony
     6.3 Webgear Aviator 2.4  AviatorPro
     6.4 Lucent Wavelan I, II, Orinoco i Cabletron
     6.5 YDI

  7. Wireless Ɋւ邳Ȃ
     7.1 CXɑΉ Linux fBXgr[V

  8. NW
     8.1 I[v\tgEFA֌W̃N
     8.2 p֌W̃N

  9. FAQ - Frequently asked questions, ǂ鎿
  10. t^ A - 255.255.255.255 Ƃlbg}XN proxy arp, ubW Ɋւ
  11. t^ B - Siemens  DECT Radio Modem
  12. {ɂ

  ______________________________________________________________________

  1.  ͂߂

  1.1.  ͂߂

  ͂̕ł́ACXlbg[N̍\z@₻ɔɂ
  ĉĂ܂BCXlbg[ŃAP[uō\zꂽlbg
  [NƂ͏XقȂ邽߁A܂ɂ͂ƂRcKvłB
  AeiɊւmĂłAɐݒu
  悢̂? ƂA[~OɊւ鎖ȂǁȂXɂĒmĂ
  悢ł傤B͂̕Ɋւ邲ӌ́A劽}łB Jean
  Tourrilhes Wireless Howto
  <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux> ɃANZX
  ΁A̗lXȏ񂪌ł傤B

  ӌEẮA܂Ń[ <mailto:berto@fatamorgana.com>
  B
  ( - {Ɋւ邲ӌEẮAJF <mailto:JF@linux.or.jp>
  肢܂)

  1.2.  Copyright

  Copyright (C) 2000,2001,2002 Roberto Arcomano.

  This document is free; you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free
  Software Foundation; either version 2 of the License, or (at your
  option) any later version.

  This document is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details. You can get a copy of the GNU
  GPL here <http://www.gnu.org/copyleft/gpl.html>

  1.3.  |Ɋւ

  ȂÃhLg|󂵂ƎvꂽꍇAɐ͂
  ܂BAۂɖ|ɂOɁAȂƂȉ͍̎sĂ
  B

  1. Ȃ̒n LDP TCgɁA͂̑̃̕o[W̖󂪑݂
     ȂǂmFĂB

  2.

  ! TXT t@C HTML t@CҏWKv͂܂B LYX
  t@CҏWĂB΂̃t@C TXT, HTML, RIFF
  ɕϊł܂Bϊɂ́A"LyX" ƂAvP[VgĂ
  B "LyX" ́Ahttp://www.lyx.org <http://www.lyx.org> _E[
  hł܂B
  ( - "LyX" ́AWł͓{ɑΉĂ܂BȂA
  CJK-LyX <http://cellular.phys.pusan.ac.kr/cjk.html> ̃pb`K
  ŁAΉł悤łB)

  ܂Ŗ|̋₢킹Kv͂܂BǂĂm点
  ̂łA|󌋉ʂĂB

  |󂵂Ē̓w͂Ɋӂ܂!

  1.4.  Credits/ӎ

  ̂߂̋@ނƋ@񋟂Ăꂽ Fatamorgana Computers
  <http://www.fatamorgana.com> Ɋӂ܂B

  ̃hLgAvɌfEXVĂꂽ Linux Documentation
  Project <http://www.linuxdoc.org> Ɋӂ܂B

  2.  {ɓO

  2.1.  CX Ƃ͉ł傤H

  CX́Aꂽʒuɂ镡̃Rs[^ڑۂɖ𗧂A
  VZp̈łB̋ZṕAMg 2.4GHz тgAC[Tlb
  gɗǂ\tgEFAIȃC^[tF[XAn[hEFAAh
  XEŏdȂACXJ[hgŎł܂BWI
  ȑMd͂́A10-20mW  100mW łB (ڂ́AIEEE802.11 ܂
  FCC/CEPT ̎dlĂ)

  2.2.  CXlbg[NɂőʐM͂ǂ̒xł?

  CXʐMɂčłdvȎ́Aʂ̗ǂłB܂AʐM
  ʒu(ڂoዾ)AeiKv܂BڌȂ
  ꍇłAAeiƂ̊Ԃɂ́AȖ؂ĂxɂĂ
  Kv܂B

  ʐḾAAei(ŏIIɂ͑)̎gɈˑ܂B̓I
  ȗƁAwAeig 2-300m xAw̃Aei
  ȂA1km ͒ʐMłł傤BwAeiƑ(200mW ̏o)
  ̑gݍ킹Ȃ 2-3kmAp{Aeigΐ km ͓͂܂Bp
  {Aei͎wAeiƍo͂̑̑gݍ킹Ȃ(
  W )A50-60km ܂ŐLт܂B

  CXJ[h̏o͂𑝕鎖́AȂ炸@ł͂ȂƂ
  A܂̍śׂAFCC/CEPT ̎dl⎩̖@j錴ɂȂ肤
  A悭ĂĂB

  2.3.  P[uŌqꂽlbg[NƁACXlbg[NƂ̈Ⴂ
  ͉ł傤?

  P[uŌqꂽlbg[ŃA\ẑƂĂȒPłB(Ȃ
  Ƃ{IȂƂł) CXlbg[Nł́A\ẑA
  ɉ^ĉAš肷̂AϓȂ܂B@
  ̓ɊւA\tgEFÃCXg[ɊւAs
  ȂǁAP[uŌqꂽlbg[NŔT^IȖ́AC
  Xlbg[Nł͒vIȖɂȂ܂B

  1. gp郏CXJ[h́AK؂ȕIȂ΂Ȃ܂B
     ̊ƂAlXȎdlEvJ[h̔Ă
     BK͂ LAN/WAN \ẑł΁AIEEE 802.11 
     dlɑCXJ[hƁAANZX|CgwׂłB

  2. CXJ[h̑́APCMCIA ^Cv̂̂łB̂߁Aŏ
     Linux p PCMCIA \[XCXg[Kv܂B

  3. ŏ́A̑ůԂŃCXlbg[N̎܂傤B
     Z̎͂߂āAXɋL΂Ă܂傤B

  4. lXȓV(ႦΉJVȂ)̏ŁAeXg܂傤B

  5. \zIɂ́Aō̋C𖡂키ł܂B

  s[^[(̃CXJ[hAP[uڑpJ[h𑕒
   Linux BOX)Ƃċ@\悤ɍ\zĂ̂ȂAݒɊւėlX
  Ȗɒʂł傤!

  2.4.  CXlbg[N\zɂ́AǂȒmKvł傤?

  CXlbg[N\zɂ́AKv܂BႦ
  ΁A

  \tgEFAɊւ鎖

  1. IP AhXlbg}XNA[eBOȂǁAʓIȃlbg[N
     mKvłB́ALinux NET3-4-HOWTO ɏڂłB ``(
     P)''

  2. proxy arpAubWAproc fs Ȃǂ́Aȋ@\ɊւmKv
     Ȃ܂BɊւẮAProxy-ARP-SubnetABridge Mini-Howto 
     ǂ̃hLgA Linux(2.2.x , 2.4.x) ̃J[l\[Xɂ
     ADocumentation/networking/ip-sysctl.txt ɏڂłB ``(
     P)''

  3. CXlbg[NɊւLȒmAႦ΃ANZX[h (A
     hzbNACtXgN`ANZX|CgȂ)Ɋւ鎖A
     `l̊TOAOE̒`Ȃǂ̒mKvƂȂ܂B
     烏CXɊւ鑽̃hLǵAIEEE standard 802.11,
     CEPT ȂǂŌ鎖ł܂B

  \tgEFAȊOɊւ鎖

  1. AeiɊւāA̐ݒu@ݒuꏊɊւ鎖ȂǁAŒ̌o
     KvłB

  2. KvɉāÃCXJ[hԂŁA݊NȂ悤
     ɓĂZpKvłB

  ŌɈԕKvȂ̂́Ah^hł!

  (P) ̃hLgŏЉĂSĂ HOWTO
  ́Ahttp://www.tldp.org <http://www.tldp.org>肷鎖ł
  B
  ( - hLg̓{́AJF JF
  <http://www.linux.or.jp/JF/>ł܂)

  2.5.  ȂCXlbg[N̍\zׂȂ̂ł傤? ܂ꂩ
  牽҂ł̂ł傤?

  Ȃ? ͂ȂP[uŌqlbg[NɖĂ
  łB

  CXJ[h΁AA݂˂؂Ăǂւłs
  ł܂B (AAʐM̑葤ʒułȂƂ߂łǂ!)

  CXJ[hŎgĂʂ̃vgŔAC[TlbgJ[h
  gĂ邻Ɠl̂̂łBႦ TCP/IP ́ACX
  C[Tlbg̗lɎg܂BAWindows LAvP[Vg
  ꍇ́AӂKvłB]̖ړI Linux gĂƁAuip
  forwarder Au[hLXgbZ[WʂĂȂvƌx
  ɂȂ܂B (Əڂm肽ĺANet BIOS vgR̉
  Ă) ̂悤ȏꍇ́AWINS T[o[𓱓āAlbg
  [NuEWOT|[g܂傤B(Samba ̕t͂ǂł
  )
  ( - Samba ́AUNIX }V Windows n OS ̃t@CAvgE
  T[o[Ƃċ@\邽߂ CIFS/SMB T[o\tgEFAłBڂ
  ́A Samba { http://www.samba.org <http://www.samba.org/> A
  Samba {œ{ Samba [U <http://www.samba.gr.jp/> ɃANZX
  Ă)

  ̃ANZX|Cg΁AK͂̃CX LAN/WAN \
  zł܂ (ĂɃC^[lbgւ̃ANZX܂ł\ɂ
  ܂!)ANłŃANZXł悤ɂȂ܂!

  ɖVXeꂽzĂ݂ĂB

  ׂĂ̍ɐڑ鎖łāAt@CLAȉ
  ƉyAvP[VfAvP[V(P[uŐڑꂽ
  lbg[NƓl) głAȃlbg[Nz
  Ă݂ĂB

  ̎́ACXJ[hACXANZX|CgƁAs[
  ^[Ƃċ@\郏CX Linux Box gŎ\łB (
  ɂ̍ł́AĂ܂) ̂悤ȃs[^[̍\
  @(IP xł̓[^[Af[^Nw܂Ōꍇ̓ubWhC
  op)ɂẮA Bridge Http Link <http://openrock.net/bridge>
   Bridge Ftp Link <ftp://openrock.net/bridge> Ă)

  2.6.   HOWTO ł́AǂȃCXJ[hɑΉĂ̂ł?

   HOWTO ł́A܂ʓIȐݒ(CXlbg[N̓̂
  )͂߂āAڒmĂ邻ꂼ̃J[h̐ݒA̐
  \\ɔ邽߂̂̃RcȂ狓Ă܂B

  CXJ[h̃Xg

  1. Proxim Symphony -http://www.proxim.com <http://www.proxim.com>

  2. Webgear AviatorPRO 2.4 (PCMCIA ւ̑ΉKvł) -
     http://www.webgear.com <http://www.webgear.com>

  3. Lucent Wavelan I, II, Orinoco - http://www.lucent.com
     <http://www.lucent.com>  http://www.orinocowireless.com
     <http://www.orinocowireless.com>

  4. Cabletron - http://www.cabletron.com <http://www.cabletron.com>

  5. YDI am930_isa - http://www.ydi.com <http://www.ydi.com>

  6. Siemens Radio Modem (Dect) - http://www.siemens.com
     <http://www.siemens.com>

  7. RadioLan (5 GHz тgp) - http://www.radiolan.com
     <http://www.radiolan.com>

  ȏ̃XǵA Jean Tourrilhes Wireless Howto
  <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux> Ă
  B

  Siemens Radio Modem ́A 802.11 ̃CXJ[hł͂܂B
  ̓VAʂĐڑ郂fłAۃf̗lɓ삵
  B (1800 MHz ̎gтŁADECT ZpgĂ܂) ̃J[h̎gp
  @́A``t^ B''łӂ܂B

  RadioLan ̃J[h́AWindows9x ̊ł 5.4GHz œ삵܂B܂
  RadioLan ̃ANZX|CgƈꏏɎgƁAANZX|CgC[
  Ōqꂽlbg[NƃCXlbg[N̋nĂ܂B
  (̒m Linux p̃hCo͒񋟂Ă܂)

  2.7.  ǂ̂炢̔p̂ł傤?

  ɎCXJ[h́AƂĂ̂łB͂Q|RSh
  xAubWƂċ@\̃CXJ[hANZ
  X|Cg(Lucent Ђ̐iȂ)Őh܂łłB

  3.  CXɊւZp

  ̏͂ł́ACX̊b𗝉邽߂ɁÅ{ZpɂĐ
  ܂B

  3.1.  w

  ISO/OSI f̑wɂ́AO̎dl܂

  1. FHSS (Frequency Hopping Spread Spectrum) - gzbsOEXyN
     ggU

  2. DSSS (Direct Sequence Spread Spectrum) - ڃXyNggU

  3. ԊO - ̕ɊւẮA HOWTO ł͂ӂ܂

  3.2.  \

  \ɂ͂Qނ܂

  1. AdHoc mode - AhzbNE[h( Independent mode - Ɨ[h Ƃ
     Ă΂܂)ł́Aꂼ̋ǂABSS(Basic Service Set)\
     lbg[N܂B܂ BSS ́Aʂ̎dlłB

  2. Infrastructure mode - CtXgN`E[hł́Aꂼ
     lbg[N( BSS \Ă܂)́AANZX|CgʂČ݂
     ɒʐM܂B܂AANZX|Cg𒆐SɁAESS(Extended
     Service Set)\z܂B܂̃[hł́Aǂ߂̃ANZX|
     Cg "ڑ "[~O@\Ă܂B

  AhzbNE[h ͂ƂĂPȋ@\(gR)łA
  zXgԂł݂ڒʐM܂Bv́AׂẴzXglbg[
  N͈͓̓͂A܂蒼ڌ悤Ȉʒuɂ邱ƂłB (͂
  ܂łzłBƂ̂́A̖ IP wŉ邱Ƃ\
  łBڂ``5.4 ''Ă)

                                AhzbNE[h(Adhoc mode)

                                 A - - - - - C
                                  _       /
                                 |  _   /   |
                                       /
                                 |   /  _   |
                                   /      _
                                 B - - - - - D

  CtXgN`E[h̊ł́AANZX|Cgg܂B
  SẴzXǵAlbg[NL邽߂ɁAANZX|Cgɐڑ
  ܂B

  CtXgN`E[h(Infrastructure mode)
                                      ESS

            A - - - | - ANZX|Cg - -  ANZX|Cg- | - - - D

            B - - - |   BSS1                          BSS2      | - - - E

            C - - - |                                           | - - - F

  B  C ́AD,E,F 鎖ł܂BASẴzXg ESS
  𗘗p鎖ŁAʐM\łBdvȂ̂́AA,B,C ܂A݂
  ĂȂƂłB

  āAƎOƂ悤ɁALT[rX͈͂ƋT[rX͈͂
  ʂƂۑ肪܂B

  3.3.  ݊

  Eɂ͐̃CXJ[h݂Ă鎖A̋ɂĂ
  ĂBSẴJ[hȂSẴJ[hƒʐMł킯ł͂
  B݂ɒʐM邽߂ɂ́Aȉ݂̏Kv܂BႦ
  ΁A

  1. ݒ胂[hg - SẴzXgAhzbNE[h ɂ邩A
     CtXgN`E[hɂ

  2. wg - SẴzXg DSSS ܂ FHSS g

  3. vgRg (Ⴆ Proxim Ђ́AOpenAir Ƃ FHSS
     J[hƒʐMłȂAƎȃvRgĂ܂)

  3.4.  AhzbNE[hƃCtXgN`E[hAǂg
  ł傤?

  ANZX|Cg͂ƂĂ֗łA̔ȂȂ܂B
  ȂAƂ΂łBz΁AK͂ȃlbg[N̉^
  pړIƂ̂ł΁ACtXgN`E[hIׂ
  傤BzXg̐Ȃ̂ȂAAhzbNE[hI鎖\
  łBzXgȂ̂ɁAȂɂ܂񂩂ˁB

  ŁA𑽂߂΁A낢낪ɐiނł낤Ƃ̂A
  ܂^łB΁A̕guɂԂł傤ˁB

  3.5.  Linux Box ́AANZX|CgƂĎg܂?

  悢łI

  ŋ߁Â悤Ȍ`Ԃł̗p\ȃn[hEFA܂B
  Prism2 Ƃ̂łB

  Prism2 Ɋւ́Ahttp://people.ssh.com/jkm/Prism2/
  <http://people.ssh.com/jkm/Prism2/>ɃANZXĂB
  ( - LTCghttp://hostap.epitest.fi/
  <http://hostap.epitest.fi/>ɈړĂ悤łB܂APrism2 
  chip ́AIntersil http://www.intersil.com/design/prism/
  <http://www.intersil.com/design/prism/> łB)

  4.  c[ box ̕Kv

  4.1.  n[hEFAƂĂ̕Kv

  ܂ Linux Box (486 ȏAႦ Pentium 100MHz Ȃǂ CPU 
  16MByte ȏ̃) KvłB̑ɂ́ACXlbg[N
  J[hAAei(``2.2 ''Q)KvłBlbg[N̑葤(
  Win9x Ƃ WinNT Ȃǂ]݂ł)AM̎ŝɕKvł
  ˁB

  4.2.  \tgEFAƂĂ̕Kv

  ȉKvƂȂ܂ -

  1. ŐV̈ŃJ[l\[X (2.2.x)

  2. PCMCIA J[hŵł΁AŐV̈ PCMCIA \[X
     (pcmcia-cs)

  3. CXlbg[NJ[hphCo - ĂȂ̂ȂA
     [J[J[hЂ̃EFuTCg_E[hłł
     Bł鎖łȂ̂ł΁A JeanTourrilhes
     Wireless Howto
     <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux> Ō邱
     Ƃł܂B

  ǂĂȂ̂ł΁AhCoł̂҂AWindows
  p̃hCo Linux p̃hCo֕ϊ邵Ȃł傤B (
  ΂Ă!)

  ȏ̏AJ[l̍ăRpCs܂B PCMCIA
  ̃\[XăRpC(CXJ[hĝɕKvł)܂B
  čŌɁACXhCoăRpC܂B͈ʓI
  @łBgJ[hɂĂ̓Xebv 3 ŗǂł傤AXeb
  v 1  3 Kv܂B̕ӂ̓hCo̎dlɂĈႢ
  B

  5.  CXlbg[N\z̊Tv

  5.1.  bIȒiK

  UKvȂ̂肵āAKvȃRpCׂĎsĂ܂A
  bIȃCX̐ݒiK֐i݂܂傤B

  1. J[l̒჌x̐ݒ - J[l̒჌x̐ݒsALinux 
     J[lCXJ[hFł悤ɂ܂傤B (჌x
     Ƃ́AႦ I/O Port ƂA荞(IRQ)ƂADMA Ȃǂł) ܂
     J[lAuCXJ[h𐳂FĐݒ肵܂vƂ
     \o悤ɐݒ肵Ȃ΂Ȃ܂B

  2. f[^Nw̐ݒ - eCXJ[hɂ́Af[^Nwɂ
     Wlݒ肷邽߂̃c[񋟂Ă܂BႦ Proxim
     Symphony ̏ꍇA"rl2cfg" ƌĂ΂c[łB PCMCIA J[
     hł̐ݒƂ͕ʂŁA PCMCIA ݒt@Cōs܂B
     SẴCXJ[hɑ΂āA݂ɌMł悤ɂ邽
     ɁAтĐݒ肷Kv܂B

  3. IP w̐ݒ - ܂ł΁Aifconfig  route ̃R}hg
     AIP ֌W̐ݒ肪ł܂B

  4. \\񕪂ɔARc - ̒iK܂ł΁A
     Ȃ̃CXlbg[ŃA{Iȓ͂Ă܂B
     āAȋ@\̐ݒKv܂BႦ proxy-arp 
     Aicmp echo redirectAubWA`lύXȂǂłB
     ݒ{ŁAlbg[NœKAŁAoh
     Ă܂悤ȋ܂B

  ӓ_ - Xebv 1 2 3 ́AISO/OSI Wf̃x 1 2 3 ɑ
  ܂BXebv 4 ́Albg}XN 255.255.255.255 Ƃ󋵎
  邽߂ɕt̂łB 32bit ̃lbg}
  XŃAISO/OSI WĂȂ̂ŁAlbg[Nɑ΂āAu[h
  LXgƃ}V IP ɓAhXgAlbg[NAhX
  Ȃ悤Ȋ蓖Ă邱ƂɂȂ܂B

  ̌ɂ͔ᔻlł傤BAȂCX
  lbg[Nݒ肷邽߂ɕW ISO/OSI fĝł΁ATu
  lbĝ߂ɑ̃AhXʂɂȂ܂(X̃Tulbgɂ
  āA2  IP io[(lbg[Nƃu[hLXg)̂ĂĂ܂
  )A܂_ IP 蓖(nIȏȂǂŔ) łȂȂ
  ܂BɂẮA``t^ A''ŏڂ܂B

  ̃Xebv 2 ́AP[uڑ̃lbg[Nݒł͏oĂȂ
  BƂ̂́AP[uڑ̃J[hł́A̕ʂ̓ʂȐݒ͂Ȃ
  łB
  5.2.  ჌x̃J[lݒ

  Linux J[lɌ炸An[hEFAF鎖 PC Ǘ
  ̒ɂłB

  CXJ[h́AĂ PCMCIA `Ȃ̂ŁA΂蕡GłB
  ɁAJ[l PCMCIA A_v^[Fł悤ɂKv
  ܂Bꂪł΁ACXJ[hp̓hCõCXg[
  ɒł܂B

  PCMCIA ̐ݒɂāAȉ̎Ȃ΂Ȃ܂ -

  1. linux ̃J[l\[XCXg[܂B\[X́A
     http://www.kernel.org <http://www.kernel.org> 擾
     /usr/src/linux ɓWJ܂傤B (WJ̕@킩Ȃl tar
      gzip ̎g݂Ă)
      - J[l\[X́Ał邾̃~[T[o[肷
     悤ɂ܂傤B

  2. linux pcmcia ̃\[XCXg[܂傤B\[X́A
     ftp://projects.sourceforge.net/pub/pcmcia-cs
     <ftp://projects.sourceforge.net/pub/pcmcia-cs>擾
     /usr/src/pcmcia ɓWJĂB (WJ@킩Ȃl tar
      gzip ̃}jA݂Ă)
      - J[l̃\[XƓlAł邾̃~[T[o[
     肵܂傤B

  3. J[l̐ݒsAp̃J[lRpC܂B̍
     ł́Alinux fBNg (/usr/src/linux) ɂ README t@C
     ǂłB
      - JF vWFNgł́Ãt@CQ{ւ̖|i߂
     ܂BڂJF <http://www.linux.or.jp/JF/>ĂB

  4. PCMCIA \[X̐ݒƍăRpCs܂BfBNg
     /usr/src/pcmcia  configure, make R}hg܂BOɁAKv
     ȃhCo邩mFĂBꍇɂ́AhCo̐
     ]CXg[Kv܂B (Ă pcmcia ̃fBNg
      "tar zxvf driver.tgz" s OK ł) AR
     pC邽 "make all" s܂BRpCI
     A"make install" sACXg[܂傤B

  5. CXg[sALpȐݒt@CQ /etc/pcmcia ȉ
     ܂B

  PCMCIA ł͖ꍇ -

  1. KvȃhCo linux ̃\[XɊ܂܂Ă̂ł(
      99% Ǝv܂)AfBNgɃCXg[AR
     pCKv܂B

  ̒iKɂ܂Ői߂΁AǂݍޕKv̂郂W[̖O킩Ă
  ͂łB PCMCIA ̐ݒ́APCMCIA ̃f[N΂悢
  B (RedHat Ȃ΁C"/etc/rc.d/init.d/pcmcia start")ÃfBXg
  r[V̏ꍇ́A"modprobe module_name options" łB̃Iv
  V̍ڂŁACXhCogAioport, irq, data-link ̒l
  ^܂B(``5.3 ''Q) ƂɂAn[hEFAhCo琳
  FĂ邩ǂmFɂ́Aȉ̂悤ɂ܂ -

  1. "tail /var/log/messages" : ̃R}hŁAsyslog fo
     鎖ł܂B

  2. "dmesg" : ̃R}hŁAڂ𓾂鎖ł܂B

  3. /proc fBNg : ̃fBNgȉ̃t@CQAioport,
     foCX, irq hCȍ񂪂킩܂B

  5.3.  f[^Nw̐ݒ

  ĉ ?

  P[uŌqꂽ܂ł̃lbg[Nł́A@ԂP[uŌq
  ܂΁Af[^Nw̐ݒȂƂATCP/IP p[^ݒ肷
  邱Ƃł܂B

  CXlbg[Nł́AƂ͑ΏƓIɁAf[^Nw̐ݒ
  KvłBႦ΁A

  1. ڑ郏CXlbg[ŃAǂ̎(AhzbNCt
     XgN`)ł傤?

  2. ǂ̃`lgȂ΂ȂȂ?

  3. ꂩڑlbg[ÑTulbg( BSSID )͉?  ܂ ESS ID
     ?

  4. ̒ʐḾAencryption ASŶ悤Ȃ̂ŎĂ̂
     傤?  ĂȂ΁ALength L[͉?

  ̂悤ɁAKvȐݒ荀ڂ͂񂠂܂BŔACX
  lbg[N̊{݌vɂ̂łBN߂ɂlAAei
  ɌāA TCP/IP ̐ݒ邾ŁAȂ̃pPbg
  ƂAT[rXgƂo܂B

  ăCX̉ł́A݂ɍMNȑ̃CX
  TulbgAɑ݂Ă\܂B

  ]āAL̂悤Ȑݒ荀ڂ܂ -

  1. load-time W[̃IvVݒ - Ⴆ "modprobe ray_cs
     essid='LINUX'"

  2. run-time hCõ[eBeB̎gp -  Ⴆ "rl2cfg eth1
     master"

  5.4.  IP ̐ݒ

  ͂ȂʂȂ΂ȂȂAOԖڂ̖łB̖́A
  CXlbg[Nɑ傫ȂĂƂɁA݉Ă
  傤B

  CX IP lbg[ŃAׂĎgȂ̂ȂAȂ̕SɂȂȂƂoĂĂB

  5.4.1.  ȒPȍ\

                         SẴzXǵA݂܂

                                 A - - - - - C
                                  _       /
                                 |  _   /   |
                                       /
                                 |   /  _   |
                                   /      _
                                 B - - - - - D

  ̂悤ȍ\͂ƂĂPŕ₷A܂Ȑݒ( IP x
  ݒȂ) KvƂ܂B ꂼ̃zXgւ IP AhXƁA
  ėplbg}XN蓖Ă΂悢łB

  5.4.2.  ƕGȍ\

                         zXg A  ڃzXg B ܂

                                  A <- - - -
                                ʐM_        |
                              s\_        C
                                   _        |
                                  B <- - - -

  A  B ́AC ʂĂ̂݌M\łB

  lbg[NCtXgN`E[hō\ĂāAC A
  NZX|CgłȂ΁Aʂɖ͂܂BAhzbNE[h
  ꍇA "master" zXg\ BSS ɑ΂ÃzXg͐ڑ鎖
  ł܂B (u"master" zXgvƂȂ̂Ŗ́A\
  mĂ܂ǂ!)

   IP x̊SȑݐڑłĂ܂B܂ A  B
  ́AC C^[tF[XgĒʐMȂ܂B A 
   B  ping łƂƂƁAC 炽 ICMP REDIRECT pPbg
  M܂B̗ŔA C  A ɑ΂āA"pPbg̖ړInAv
  Ɠlbg[Nɂ"Ƃ`Ă邩łB

  @ - }~邽߁AR}hC "echo 0 >
  /proc/sys/net/ipv4/conf/ethx/send_redirects" Ɠ͂Ă݂܂傤B (
   ethx ́AA  B Ɍ C ̃C^[tF[Xł)

  ̖ - A  C ɂ́Aǂȃlbg}XNlU悢̂ł
  ?   A ɑ΂āAA  C ܂񂾃lbg}XNݒ肷ƁAlbg
  [N͂܂Ȃł傤BƂ̂́AA ̓Q[gEFC(̏ꍇ
  C )gȂAs̒mȂ MAC AhXƋ ARP vo
  邩łB

  Ȃ proxy arp ̗pv܂BAproxy arp
  sm鎖ł̂́A悪ṽC^[tF[XƂ͕
  ̃C^[tF[Xɂ鎞Ȃ̂ŁÃP[Xɂ͊Y܂!!

  ̗lȏꍇAƂĂȃlbg}XN (Win9x Ȃ 255.255.255.254
  AWinNT Ȃ΁AȂƂ 255.255.255.248) ݒ肷Kv
  B܂zXg A  C lbgAhXȂ悤ɁAmɐݒ
  Kv܂B

   :

  1. IP(zXg A) = x.y.z.2/31, IP(zXg B) = x.y.z.3/31 ̐ݒł́A
     ܂܂BƂ̂́A A ̓lbg[Nɑ΂ B ̎q
     ˂܂ (ARP ̗v)A A  B C^[tF[XɌqĂ
     ɂւ炸(] proxy arp ͖)A C ͗vɉĂ܂
     B

  2. IP(zXg A) = x.y.z.1/31, IP(zXg B) = x.y.z.2/31 ̐ݒ͓
     ܂BȂȂAA  C ɑ΂ B ̎𕷂łB ( B ɑ΂
     āAC  MAC AhXƈꏏɂėvô)

  ʓIɃVXéAlbg}XNl 255.255.255.254 Ƃԉɂ
  āAŏIrbgႤ 2  IP AhX^邱Ƃœ܂D

  炷ׂẮATCP/IP Ă܂B́Ax̏_
  𓾂邽߂ɂ́AB̕@łB

  ӓ_ - ANZX|Cg𗘗pĂ̂ł΁A (lbg[N
  ̓CtXgN`E[h) ׂĂ̖̓f[^Nwŉ
  Ă܂̂ŁÂ悤Ȗɒʂ鎖͂܂B (قƂǂ̃AN
  ZX|CǵAubWƂċ@\܂...)  ANZX|C
  g͍łB( 1000 US$ Aȏ) łA2A3 ̃C
  XJ[hxł΁A]p Pent133MHz,32MByte  RAM ς
  x PC gƁAoϓIłB

  5.4.3.  C^[lbgւ̃ANZX

                                 A - - - - - C - - C^[lbg
                                  _       /
                                 |  _    /  |
                                       /
                                 |   /  _   |
                                   /      _
                                 B - - - - - D

  ̏󋵂z肳܂

  1. C BA IP AhXĂ܂B̃CXlbg
     [N𓮂߂ɂ́AvCx[g IP AhX(Ⴆ
     192.168.x.y)ݒ肵AC ɂē]}XJ[hsł
     łB A, B, D ́AC W̃Q[gEFCƂ܂B

  2. C^[lbgANZX\ȁAʓIȃlbg}XN蓖Ă
     ĂA C ͂̃lbg[NC^[lbg֐ڑ邽߂́A
     WQ[gEFCłBKvȂ̂́AC œ]@\Lɂ鎖
     ƁAA, B, D ɑ΂ C WQ[gEFCƂ邾łB

  3. C^[lbgANZX\ȁAʓIȃlbg}XN蓖Ă
     ĂA C ́AC^[lbgփANZX邽߂̕WQ[g
     EFCł͂Ȃꍇl܂B̏ꍇ̕@܂B
     ́Albg[Nɑ΂āAC WQ[gEFCƂĎg悤ɍ\z
     邱ƂłBΏ̓I C ɑ΂ẮAC^[lbgɃANZX邽
     ߂ɁAWQ[gEFCw悤ɎdȂ΂Ȃ܂B̕
     @̂ɂł鎖́AC ɑ΂ proxy arp @\Lɂ鎖
     B (echo 1 > /proc/sys/net/ipv4/conf/ethx/proxy_arp  ethx
     ́AWQ[gEFCɌqĂC^[tF[Xł)  C 
     ̕WQ[gEFCAC^[lbgփANZXWQ[gEFC
     w悤ɐݒ肵܂B Proxy arp  TCP/IP ɑ΂ċɐU镑
     ܂A܂@\܂B

  5.4.4.  P[uŌqlbg[NƃCXlbg[N݂
  Ăꍇ

                                 C^[lbg
                                     _
                                       _        E
                                         _     /
                                           _  /       CX
                                 A - - - - - C - - F
                                  _       /   _
                                 |  _   /   |   _
                       P[u         /           G
                                 |   /  _   |
                                   /      _
                                 B - - - - - D

   C ́A̃lbg[N̒pĂ܂BE̓CX
  lbg[NŁA̓P[uڑ̃lbg[NłB

  āAC^[lbgւ̃ANZX\łB܂ C ɂ́A3 
  lbg[NJ[hڂĂ̂łB

  zXgɑ΂āAǂ IP AhXU悢̂ł傤?  
  ɂ͓̉􂪂܂B

  1. lbg[N̃Tulbgɕ@ - Ⴆ
     192.168.1.0/24  192.168.2.0/24 ̂悤ɕ܂B̉
     葁@łAC^[lbg IP AhXgĂ
     ƁA IP ʂɂȂ̂ŊgɌ܂B

  2. ڂ̉́AC ̓̃C^[tF[Xɑ΂ Proxy Arp @
     \Lɂ鎖łBlbg[Np[^ilbgAhXA
     lbg}XN)́ACXłP[uڑlbg[Nłꏏ
     BA proxy-arp Lɂ邱ƂŁAǂ IP P[uڑ
     lbg[N̂̂A邢̓CXlbg[NȂ̂AI
     ł悤ɂȂ܂B

  2 ڂ̉ɂČĂ݂܂傤

   - C^[lbǧȃTulbg x.y.z.0/24 Ăꍇz
  ܂

  eC^[tF[X̐ݒ͈ȉ̂Ƃ

  1. ifconfig eth0 x.y.z.C netmask 255.255.255.255 (P[uڑlbg
     [N)

  2. ifconfig eth1 x.y.z.C netmask 255.255.255.255 (CXlbg[
     N)

  3. ifconfig eth2 x.y.z.C netmask 255.255.255.255 (C^[lbg)

  eth2 ɂÓIȔz

  1. route add IPGW dev eth2

  2. route add default gw IPGW

  ̔zoHwł́ASẴC^[lbg̃AhXwvɑ΂
  āA̕WQ[gEFCw肵܂B܂肨CÂ̂悤ɁAŏ
  Linux ɑ΂ĉɃ[^[̂KvA΁AW
  ̗vʉ߂悤ɂł܂B

  eth0 ɂÓIȔz

  1. route add x.y.z.A dev eth0

  2. route add x.y.z.B dev eth0

  3. route add x.y.z.D dev eth0

  zXg A B D ́AP[uڑ̃lbg[Nɂ܂B

  eth1 ɂÓIȔz

  1. route add x.y.z.E dev eth1

  2. route add x.y.z.F dev eth1

  3. route add x.y.z.G dev eth1

  zXg E F G ́ACXlbg[NɌqĂ܂B

  ڂׂ_́A_ύłBAꂼ̃zXgɎ
  Őݒ肵Ȃ΂Ȃ܂񂪁B

  6.  ݒ

  ł́AōLyĂ郏CXJ[h̐ݒ@A
  ̗i̗Ⴊ𗧂Ă΂̂ł!)Đ܂B

  6.1.  ʓIȐݒ

  CXJ[h́AʓIȃC[TJ[hƎC^[tF[X
  ܂BłA/etc/conf.modules ɉ鎖KvłBȉɗ
  ܂ -

  1. "alias ethx module"  ethx ́AȂ̃CXJ[h
     ɊU肽C^[tF[XwĂ܂B module ́AJ[l
     W[̖OłB

  2. "options module io=0xAAA irq=I ..."  0xAAA ́ACXJ[
     h I/O AhXĂA I IRQ Ă܂B̃p
     [^̂ȂAɑ܂B

  ȏオƁAifconfig  route R}hg IP xł̃J[
  hݒsł悤ɂȂ܂B

  6.2.  Proxim Symphony

  lbg[Ň` : FHSS ___ AhzbNE[ĥ݂ɑΉAƎɊJ
   OpenAir vgR g܂B

  EFuTCg : http://www.proxim.com <http://www.proxim.com> ___ 
  TCg LinuxAWindows9x p̃hCoƁAhLg_E[h
  Kv܂B

  hCoɂ́ARpC邽߂Ƀ\[XR[hĂ܂B

  1. 󂫃fBNgŉ𓀂܂

  2. wv邽߁Amake Ɠ͂Ă݂܂傤

  3. hCo rlmod.o ƁÃ[eBeB rl2cfg CXg[邽
     ߁A make modules; make modules_install s܂B

  4. hCo𓮂߂( /etc/conf.modules ҏW - ``6.1 ''
     Q) ifconfig R}hgāAC^[tF[XLɂ܂傤

  [eBeB rl2cfg gƁA\Iȃf[^Nw̐ݒlύX
  ܂B (Xebv 3 {Ă܂Aman rl2cfg Ńwv鎖
  ł܂)

  1. "rl2cfg dev ethx sta" ethx ̃CXJ[hAX[u(Slave)
     ƂĐݒ肵܂

  2. "rl2cfg dev ethx msta" ethx ̃CXJ[hA}X^[
     (Master)ƂĐݒ肵܂

  3. "rl2cfg dev ethx alt" ethx ̃CXJ[hA[
     h(automatic mode)ɐݒ肵܂

  ȏオAmȓ邽߂ɒmĂȂ΂ȂȂSĂłB

  6.3.  Webgear Aviator 2.4  AviatorPro

  lbg[Ň` : FHSS ___ Aviator 2.4 ̓AhzbNE[ĥ݂ɑ
  A AviatorPro ̓CtXgN`E[hɑΉ܂B

  ̃J[h𓮂ɂ́AƂKvłBƂ̂́A
  ̃J[h̃\[X PCMCIA ̃vOɕtĂ̂ŁARpCs
  Ȃ΂ȂȂ̂łB

  EFuTCg : http://www.webgear.com <http://www.webgear.com>

  CXg[Eݒ@

  1. PCMCIA ̃\[X_E[hA/usr/src/pcmcia ɓWJ܂B
     (``5.2 ''Q)

  2. hCoAhttp://www.webgear.com <http://www.webgear.com>_E
     [hA /usr/src/pcmcia ̃fBNgŁA"tar zxvf
     driver.tgz" Ɠ͂ēWJ܂B

  3. PCMCIA ̍Đݒ(``5.2 ''Q)

  4. t@C /etc/pcmcia/config.opts ɑ΂āA"source ./ray_cs.opts"
     ̍sǉKv܂B
  5. ӓ_ - /etc/pcmcia/ray_cs.opts ̃t@CɁA̍s܂B
     "module "ray_cs " opts "..."   opts sɑ΂āAf[^N
     w̐ݒ{Kv܂B

  ݒ荀

  o  pc_debug=x ,  x ́AOx\܂B

  o  net_type=x, x=0 ̓AhzbNE[hA x=1 ̓CtXgN`E
     [h\܂B

  o  essid=x, x ́A ESSID \܂B

  ŌɁAݒ荀ڂmF邽 pc_debug > 0 s܂BƁA
  R\[Ƀf[^ÑbZ[W\܂BȊł -
  "network started" : VCXlbg[N\zꂽ
  "network joined" : VCXlbg[NÃlbg[N
  q

  t@C /proc/ray_cs 𗧂܂B̃t@Cɂ́AȂڑ
  Tulbg BSSID 񂪏Ă܂B̃t@C
  ΁ÃJ[hf[^Mł܂B

  6.4.  Lucent Wavelan I, II, Orinoco i Cabletron

  lbg[Ň` : DSSS ___ AhzbNE[hƃCtXgN
  `E[hɑΉ

  Lucent Ђ̐íAƖprɍĂ܂B

  EFuTCg : http://www.lucent.com <http://www.lucent.com> 
  http://www.orinoco.net <http://www.orinoco.net>

  ݒ WebGear ɎĂ܂BXebv 1 2 3 ͓łB

  t@C /etc/pcmcia/config.opts ɑ΂ĒǉKv܂B
  "wavelan_cs" opts " ..."  Lucent Wavelan I pW[ŁA
  "wavelan2_cs"opts " ..."  Lucent Wavelan II  Orinoco p̃
  W[łB

  opts ȉŖ鍀

  1. port_type=x,  x ́AAhzbNE[h(3)܂̓CtXg
     N`E[h(1)܂B

  2. channel=x, x=channel, ̃IvV́AAhzbNE[ĥ݂Ɋ
     W܂B

  3. transmit_rate=x, ʐMx̊m - ̐ݒƂɂ́ACabletron
     J[hƂ̌݊ɒӂĂB

   - zIɂ́A Linux Box œ񖇂 Lucent Wavelanx J[h
  g͉\łB܂AAhzbNE[hɂāAC
  tXgN`E[hɂ悤ȎłB̂悤ɂƁA
  ǂ炩݂̂삵܂BƂ̂́APCMCIA ̃T[rX
  Jn鎞A̃J[hɑ΂A opts liAhzbNE[
  h̒lACtXgN`E[h̒l̂ǂ炩jZbg邩
  łBŉX́Af[^Nw̃p[^AႦ΃ANZXE[
  hAhzbNE[hŎg`lȂǂACӂɕύX\
  Linux W[ (܂̓[U[[hvO݂Ȃ) 
  ΂ȂȂ̂ł!
  ̏ꍇA`lp[^́A߂ɂ鑼̃CXMƂ̍
  M邽߂Ɏg܂B

  Lucent p̃hCóACabletron Ђ̃J[h http://www.cabletron.com
  <http://www.cabletron.com>ɂgp\łB

  ( - Rɂ郌|[g : Lucent ̃TCg2̊Ƌzɂ
  A݂ Wavelan ܂ Orinoco ֘A http://www.proxim.com/
  <http://www.proxim.com/>ɈڂĂ悤łB܂ Linux ̃hCo
  ́A http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Orinoco.html
  <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Orinoco.html>
   orinoco.cs ̕ Lucent  wavelan2 ƗǂƎv
  B)

  6.5.  YDI

  lbg[Ň` : DSSS ___ AhzbNE[hƃCtXgN
  `E[hɑΉ

  YDI Ђ́AƖp̃CXJ[hAAeiAȂǂĂ
  B

  EFuTCg : http://www.ydi.com <http://www.ydi.com>

  CXg[@

  1. 󂢂fBNgœWJ܂

  2. make sARpC܂

  3. make install sAhCo am930_isa  wlanctl [eBeB
     CXg[܂

  UCXg[ςł܂΁Af[^Nwݒp[eBeB
  "wlanctl" gĎ蓮R}hŐݒ肷邩AVFXNvg
  "scripts/wlan"  "scripts/rc.wlan" sāAIɃlbg[N
  ̐ݒsAǂ炩̕@I鎖ł܂B

  蓮Őݒ肷ꍇ́A\IȐݒ܂

  1. "wlanctl scan ..." : łɑ݂Ă BSS T܂

  2. "wlanctl netlist" :  "wlanctl scan ..." R}hgĒTo
     ʂ\܂

  3. "wlanctl bsscreate ... ssid" : ssid lgAVlbg[N
     \z܂

  4. "wlanctl bssjoin bssid" : bssid lŔF؂ꂽlbg[NɎQ
     ܂

  5. "wlanctl authen"  "wlanctl assoc" ́AF؃T[rXgĒʐM
     鎞̃IvVł

  7.  Wireless Ɋւ邳Ȃ

  7.1.  CXɑΉ Linux fBXgr[V

  CXɑΉfBXgr[VƂ FlyingLinux Ƃ
  ܂B̃fBXgr[V́A1999N10A
  Teleinformatics KTH   Telecommunication Systems Lab(ʐMVXe
  )ŁA MobileIPv4 CXŎg̉\̌ƁAw
  ̌Ŏg߂̃CXANZXɂW DHCP ̋Zpm
  ڕWɁAJ͂܂܂B

  ̌ʂ́A 100l̐kƐ搶A2000N35܂ł 2G1303 v
  WFNg̊ԒA FlyingLinux ̌ŃCXlbg[N
  pł܂B

  FlyingLinux ́AoCT[rXɓK Linux ̃fBXgr[
  VƂẮAŏ̂̂ł傤B̃fBXgr[V
  ́AKerberos ̃T|[g OpenSSH ̓ȂǁAZLeBʂɂz
  Ă܂B

  FlyingLinux ́AI[v\[X̗̒̈ꕔłBX FlyingLinux
  ̒ɁAGPL ̃CZXŊJĂ KTH ܂B

  ̃CX Linux ̃fBXgr[V́A
  http://www.flyinglinux.net <http://www.flyinglinux.net>Ō鎖
  ł܂B

  Ǘ - Alberto Escudero Email <mailto:aep@it.kth.se>, Home Page
  <http://www.it.kth.se/~aep>

  8.  NW

  8.1.  I[v\tgEFA֌W̃N

  o  Linux-wlan project <http://www.linux-wlan.org/>

  o  Jean Tourrilhes Wireless Howto
     <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux>

  8.2.  p֌W̃N

  o  Fatamorgana Computers <http://www.fatamorgana.com>

  o  Lucent web site <http://www.lucent.com>

  o  YDI web site <http://www.ydi.com>

  o  Siemens web site <http://www.siemens.com>

  9.  FAQ - Frequently asked questions, ǂ鎿

  Q1: BSSID  ESSID ̈Ⴂ͂Ȃł傤? ܂AǂȎ ESSID K
  vɂȂ̂ł傤?

  A1: BSSID ́Ä BSS ̔F؂Ɏg 48bit ̐łB
  ́ASẴzXg݂(܂A̃ANZX|CgƂ)MĂ
  B ESSID ́Aʂ BSS ƒʐM\ɂAςȕ̂悤
  ̂łAقȂ BSS ԂA Extended Service Set(ESS)ɊgĒ
  M\ɂĂ܂Bꂼ BSS Ɉ̃ANZX|CgA
  炪ׂē ESSID ɑĂ鎞ÃzXgƌMł܂B
  ȂƂ 2̃ANZX|Cg݂悤ȁA傫ȃlbg[N
  ANZX悤ȎA{ ESSID KvƂȂ̂łB

  Q2: ǂȃANZX|Cgw悢ł傤?

  A2: Ȃ́Âɂ܂傤BƂ̂́AdvȂ̂
  ANZX|CgƂȂgĂJ[hAw̎dlg
  邩ǂ? ƂłBSĂ FHSS dl̃J[hɂ͌݊
  ܂B܂ DSSS dl̃J[hlłBAAProxim RangeLan2
  ́A̕WI FHSS ̃J[hƒʐMłȂ̂ŒӂKvłB
  J[h́AOpenAir ƂƎ̃vgRgĂ邩łB
  Q3: ݒ̍ۂɂ́Aǂ̃`lg悢̂ł?

  A3:  BSS (ʂ̉Ђ̋@ō\Ă) ɃANZXł
  ̂ȂAMƂ肪\܂B̂悤ȏꍇAAN
  ZX|Cg̃`lύX邩AAhzbNE[h̃zXgQ
  Q悤ɂ΁Ał܂B

  Q4: ȂCtXgN`E[h̃zXgɑ΂āAŃ`l
  ̐ݒ肪łȂ̂ł傤?

  A4: `ĺAANZX|CgɂČ肳̂łB

  10.  t^ A- 255.255.255.255 Ƃlbg}XN proxy arp, ubW
  Ɋւ

  ̏͂ǂގŁACXlbg[Nɂ Linux ̗Dʐ
  m鎖ɂȂł傤B

  Linux ł́AC^[tF[Xɓ̃lbg}XNlAႦ
  255.255.255.255 ̂悤Ȓlݒ肷邱Ƃł܂B̎ɂAeth0
  ɂ͂̒lAeth1 ɂ͕ʂ̒lƂ悤ɁÃC^[tF[Xɑ΂
  āAݒ肵 IP AhXRɊU鎖\ɂȂ܂B

  ̎́Aʒi̕pN܂B

   proxy arp ̋@\܂B̋@\̐ݒ́At@C
  /proc/sys/net/ipv4/conf/ethx/proxy_arp ( ethx ́ÃC^[
  tF[Xw܂) ҏW邾łB

  proxy_arp Lɂ̂ł΁A "echo 1 > proxy_arp" Ƃ΂
  Aɂ̂ł΁A"echo 0 > proxy_arp" Ƃ΁A@\͒~
  ܂B

  proxy_arp Ƃ͉ł傤?  proxy arp ́AړĨAhX Linux
  [^[̕ʂ̃C^[tF[Xɂ鎞ȂǁA[^[ ARP v
  ԓ~ɖ𗧂܂B

   :

  192.168.1.1 ---- 192.168.1.2 Linux [^[ 192.168.2.2 ---- 192.168.2.1

  ̗Ⴊ삷邽߂ɂ́Aȉ̎Kvł

  proxy-arp 𖳌ɂꍇ

  1. 192.168.1.1 zXgɂāA192.168.1.2 Q[gEFCƂĐݒ
     ܂

  2. 192.168.2.1 zXgɂāA192.168.2.2 Q[gEFCƂĐݒ
     ܂

  3. ǂ̒[ ping ʂ܂

  proxy-arp Lɂꍇ

  1. 192.168.1.1 zXgɂ 192.168.1.2 Q[gEFCƂĐݒ肵
     ܂

  2. 192.168.2.1 ̃zXgɂ Q[gEFCݒ肵܂B̑ɁA
     [^[ɂȂẼC^[tF[Xɑ΂ proxy_arp L
     ܂

  3. ǂ̒[ ping ʂ܂

  192.168.2.x ł Proxy-arp ́A 192.168.2.1 ̃zXg ping ł
  linux [^[ɓꍇA[^[ 192.168.1.1 ̃zXg݂
  Ɠ̂ŁAping ɑ΂ĉ鎖ł܂B\[X ICMP p
  Pbg̑MJnALinux [^[ 192.168.1.1 ̖{̃zXg
  ɑ΂ČȂ΂ȂȂmĂ̂łB

  CXlbg[N proxy arp ́A IP ]}VƂ
  @\ Linux Box 𑽂Ă鎞ASẴzXgɑ΂ĐÓI
  [gio[ݒ肵ȂȂǂɖ𗧂܂B

  CXlbg[Nɂ Linux ubW̎s
  ܂B

  1. ŐV̈ŃJ[lCXg[܂傤

  2. DꂽubWp[eBeB_E[h܂傤Bꏊ http
     link <http://openrock.net/bridge>A܂ ftp link
     <ftp://openrock.net/bridge> ɂ܂

  ǗĂ߂ɂ́AubW@\͂ł邾Vvɂ܂傤B

  11.  t^ B - Siemens  DECT Radio Modem

  EFuTCg : http://www.siemens.com <http://www.siemens.com>

  ܂́A̐iǂȕ? Ƃ^ɑ΂𓚂łA
  ̍\íA{̃CX PC J[hƂ͂ƈقȂAOf
  oCXƂĎgfɋ߂̂łB

  zXg 1 - VA - RadioModem1 - - - - - RadioModem2 - VA - zXg 2

  Eǂ̂悤ɐڑ悢̂ł傤?

  ̐ȋ܂ȍ\𗝉̂ȂAL̂悤ȍ\ɂł܂

  zXg 1 - VA - - NULL fP[u - - VA - zXg 2

  ܂̃zXgԂAVAP[uŐڑ悤ȊłB
  2 ̎ۂɂ肻Ȑڑɂݒ́Aȉ̂悤ɂȂ܂ -

  1. Linux  Windows ڑ - Linux ɂ ppp R[ɑ΂Ĕf[
     ܂B Windows ɂ́ARemote Access x[Xɂ_C
     Abvڑ@\܂B

  2. Linux  Linux ڑ - ł́A(̃zXg) IP AhX
     ׂׂɂԂ ppp ڑs鎖ł܂B

  1 ̏ꍇ Linux ŉL̂悤ȊȒPȃXNvggł܂B

  "/usr/sbin/pppd -detach lock idle 300 crtscts connect "/usr/sbin/chat
  -v TIMEOUT 5 AT OK AT OK AT OK AT OK" IPLINUX:IPWINDOWS /dev/ttySx
  115200 disconnect "/usr/sbin/chat -v AT OK" ms-dns IPDNS"

  

  o  /dev/ttySx ́AȂgƂVA|[gł

  o  IPDNS ́ADNS T[o[ IP AhX

  o  IPLINUX ́ALinux  IP AhXA IPWINDOWS ́AWindows  IP Ah
     X

  L̃XNvǵAWindows ɑ΂āAVA̖[Ƀf݂
  悤ɐM܂̂ɕKvȂ̂ł!

  Windows ł́A_CAAbv̐ڑKv܂B̏
  ACRT/CTS ͗LAx 115200 ɂ܂BƁAdb|邽߂̃_
  ~[̓dbԍ߂܂B (Remote Access vĂ܂ASg
  ܂)

  2 ڂ̗̗lɁA[Ƃ Linux Box ̏ꍇATChŉL̂ƂĂ
  ȒPȃXNvgs邾łB

  "/usr/sbin/pppd passive local crtscts IPLINUX1:IPLINUX2 /dev/ttySx
  115200 noauth persist"

  ̃XNvgsۂɂ́A IPLINUX1  IPLINUX2 𗼒[
  LinuxBox ŋtɂĎw肷Kv܂B

  ڂׂ_́AȂ]߂ Linux  Linux ̐ڑ Linux 
  Windows ̐ڑ͓xłƏؖł鎖łB

  12.  {ɂ

  |Ɋւ邲ӌ́AJF <mailto:JF@linux.or.jp>܂ł肢܂B

  Zтӌ𒸂X(h̗ ܏\) :

  o

     Seiji Kaneko <skaneko@a2.mbn.or.jp>

  o

     Shingo Yamaguchi <shingo@axs2.com>

  o

     Yoshiyuki YAMASHITA <dica@eurus.dti.ne.jp>

