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From: nakano@math.ryukoku.ac.jp (Hiroshi NAKANO)
Subject: Re: Multiple subnets on a single Ether segment (Was: Dual ip address)
In-Reply-To: nabe@nttlabs.com's message of 01 Sep 1995 01:56:00 GMT
Message-ID: <NAKANO.95Sep5154612@dolphin60.math.ryukoku.ac.jp>
Sender: news@rins.ryukoku.ac.jp
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Reply-To: nakano@rins.ryukoku.ac.jp
Organization: Ryukoku Univ., Seta, Otsu, Japan
References: <OHNO.95Aug23144551@dragon.crd.yokogawa.co.jp> <41junf$ea8@uecisb.is.uec.ac.jp>
	<GOOD.95Aug28133043@kiwi.jec.co.jp>
	<421he4$fil@fxisms.fxis.fujixerox.co.jp>
	<NAKANO.95Aug31170944@dolphin60.math.ryukoku.ac.jp>
	<NABE.95Aug31185600@mover.nttlabs.com>
Date: Tue, 5 Sep 1995 06:46:12 GMT
Lines: 59
Xref: galaxy.trc.rwcp.or.jp fj.questions.unix:3088 fj.lan:1302 fj.net.ip:37
X-originally-archived-at: http://galaxy.rwcp.or.jp/text/cgi-bin/newsarticle2?ng=fj.questions.unix&nb=3088&hd=a
X-reformat-date: Mon, 18 Oct 2004 15:18:22 +0900
X-reformat-comment: Tabs were expanded into 4 column tabstops by the Galaxy's archiver. See http://katsu.watanabe.name/ancientfj/galaxy-format.html for more info.

$BCfLn(B@$BN6C+$G$9!#(B $B5.=E$J>pJs$rM-Fq$&$4$6$$$^$9!#(B

In article <NABE.95Aug31185600@mover.nttlabs.com> nabe@nttlabs.com
(Masaaki NABESHIMA) writes:
 |$B%V%m!<%I%-%c%9%H%Q%1%C%H$O!$(BMAC$B$N%V%m!<%I%-%c%9%H%"%I%l%9$r;H$&$?$a!$(B
 |$B0[$J$k%5%V%M%C%H%"%I%l%9$N%[%9%H$b$=$N%Q%1%C%H$r<u$1<h$j$^$9!%(B
 |
 |$B;d$N7P83$G$O!$Bg35$N%[%9%H$O%M%C%H%o!<%/%"%I%l%9$N0[$J$k%V%m!<%I%-%c%9(B
 |$B%H%Q%1%C%H$OL5;k$7$^$9$,!$(B0.9$B$N$3$m$N(BNetBSD$B$G(Bipforward$B$,N)$C$F$$$k$H!$(B
 |$B$3$N%V%m!<%I%-%c%9%H%Q%1%C%H$r%U%)%o!<%I$7$F(B($B$D$^$j!$F~$C$F$-$?%$%s%?!<(B
 |$B%U%'!<%9$+$i:FEYF1$8%Q%1%C%H$rAw$k(B)$B!$0l$D$N%V%m!<%I%-%c%9%H%Q%1%C%H$,(B
 |$B$$$/$D$+$KA}$($k$H$$$&$3$H$,$"$j$7$?!%(B

$B$J$k$[$I!"%V%m!<%I%-%c%9%H$N%U%)%o!<%I$,LdBj$K$J$k2DG=@-$,$"$k$o$1$G$9(B
$B$M!#(B $B$3$N$h$&$J%[%9%H$,J#?t$"$k$H(B($B$"$k$$$O!"J#?t$N8}$G@\B3$5$l$F$$$k$H(B)
$B$$$o$f$k(B broadcast storm $B$K$J$k$H(B ...

$B$A$g$C$H(B BSD $B$N%=!<%9$rD/$a$F$_$?$N$G$9$,!"(B

  1. 4.4 Lite $B$O!"(BEther $B$N%V%m!<%I%-%c%9%H$GF@$?%G!<%?%0%i%`$O2?$G$"$l(B
     $B%U%)%o!<%I$7$J$$!"$=$&$G$J$$(B IP $B%V%m!<%I%-%c%9%H$N%U%)%o!<%I$O(B
     DIRECTED_BROADCAST $B$H$$$&%^%/%m$G@_Dj!"(B
  2. Net2 $B$O(B Ether $B$N%V%m!<%I%-%c%9%H$GF@$?%G!<%?%0%i%`$O2?$G$"$l%U%)(B
     $B%o!<%I$7$J$$!"$=$&$G$J$/$F$b(B IP $B%V%m!<%I%-%c%9%H$N%U%)%o!<%I$O$7(B
     $B$J$$!"(B
  3. 4.3 Tahoe $B$O!"(BEther $B$N%V%m!<%I%-%c%9%H$GF@$?$+$I$&$+$O4pK\E*$K%U%)(B
     $B%o!<%I$9$k(B/$B$7$J$$$K$O4X78$7$J$$$,!"(BIP $B%V%m!<%I%-%c%9%H$O%U%)%o!<(B
     $B%I$7$J$$!"(B

$B$h$&$G$9!#(B $B$b$A$m$s!"(Bipforward $B$,N)$C$F$$$k$H$$$&A0Ds$G$9!#(B

NetBSD-0.9 $B$O(B Net2 $B$HF1$8$h$&$K8+$($^$9$,!";d$N%=!<%9$N8+J}$,$*$+$7$$(B
$B$N$+$J$!(B ...

$B$^$?!"(BTahoe $B$h$jA0$NHG$,5$$K$J$k$H$3$m$G$9$,!"$=$NJU(B(4.2BSD?)$B$GJ,4t$7(B
$B$?H&$N(B SunOS 4.x $B$G$O!"2?$b?($i$J$1$l$P(B IP $B%V%m!<%I%-%c%9%H$r%U%)%o!<(B
$B%I$9$k$,!"%+!<%M%k$N(B ip_dirbroadcast $B$H$$$&JQ?t$G$3$l$r;_$a$k$3$H$b$-(B
$B$k$h$&$G$9!#(B

$B$A$J$_$K(B SunOS 5.x $B$N>l9g$O!"(BEther $B$N%V%m!<%I%-%c%9%H$GF@$?%G!<%?%0%i(B
$B%`$O2?$G$"$l%U%)%o!<%I$;$:!"$=$&$G$J$$(B IP $B%V%m!<%I%-%c%9%H$N%U%)%o!<%I(B
$B$O(B ip_forward_directed_broadcasts $B$H$$$&JQ?t(B($B%G%U%)%k%H$O(BON)$B$G@_Dj$G$-(B
$B$k$h$&$G$9!#(B

$B4pK\E*$K$O!"$+$J$j8E$$(B OS $B$GF0$$$F$$$k%2!<%H%&%(%$$,7o$N%;%0%a%s%H$K7R(B
$B$,$C$F$$$k$H62$$$H$$$&$H$3$m$G$7$g$&$+(B ...

 |RIP$B$b(BMAC$B$N%V%m!<%I%-%c%9%H%"%I%l%9$r;H$$$^$9$+$i!$0l$D$N%[%9%H$,J#?t$N(B
 |$B%M%C%H%o!<%/MQ$N%Q%1%C%H$r<u$1$F$7$^$$$^$9!%(BBSD/OS 1.1$B$K$D$$$F$$$?(B
 |routed$B>l9g$O%M%C%H%o!<%/%"%I%l%9$N0[$J$k(BRIP$B%Q%1%C%H$KBP$7$F$O%o!<%K%s(B
 |$B%a%C%;!<%8$r=P$7$F(B($B$3$l$@$1$G$b7k9=%&%6%C%?%$(B)$BL5;k$7$^$9$,!$$3$l$rJQ$K(B
 |$B2r<a$9$k(Brouted$B$@$H%k!<%F%#%s%0%F!<%V%k$,JQ$K$J$k$+$bCN$l$^$;$s!%(B

$B$&!<$s!"$3$l$K$D$$$F$b860x$NA[A|$,$D$-$^$;$s!#(B $BAG?ML\$K$O!"$=$N%[%9%H(B
$B$K4XO"$N$J$$%G!<%?%0%i%`$O!"%U%)%o!<%I$5$l$k$3$H$O$"$C$F$b!"(BIP $B$h$j>e(B
$B$NAX$X$OE~C#$7$J$$$h$&$K8+$($k$N$G$9$,(B ...
--
Hiroshi Nakano <nakano@rins.ryukoku.ac.jp>
Ryukoku Univ., Seta, Otsu, Japan
