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From: "Masahiro Ariga" <mariga@cd.mbn.or.jp>
To: <FreeBSD-net-jp@jp.FreeBSD.ORG>
Date: Sun, 6 Feb 2000 05:29:21 +0900
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Subject: [FreeBSD-net-jp 2221] multicast =?ISO-2022-JP?B?GyRCJE4bKEI=?=
 arp =?ISO-2022-JP?B?GyRCJCwkKiQrJDckJBsoQg==?= 
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Masahiro Ariga $B$H?=$7$^$9!#(B
$B<!$N>I>u$,=P$F:$$C$F$$$^$9!#$I$J$?$+>\$7$$J}$N$4=uNO$r$*4j$$$7$^$9!#(B

$B<!$N$h$&$J9=@.$G%G!<%?E>Aw$7$F$$$^$9!#(B

  WindowNT      Multicast       Multicast       Multicast       WindowNT
  PC          --- Server    --- Router    --- Router    --- Client

Server,Router$B$O(BFreeBSD2.2.7$B$G$9!#(B

Server$B$+$i(BClient$B$K%G!<%?E>Aw$r3+;O$9$kA0$K(BServer$B!"(BRouter$B$H$b(B
arp -a$B$r$7$F<!$N$h$&$K(BMAC$B$N%"%I%l%9$,7hDj$7$F$$$k$3$H$r3NG'$7$^$9!#(B

arp -a $BNc(B
? (192.168.75.8) at 0:0:e2:1f:87:77
? (192.168.76.68) at 0:0:e2:1f:30:9f
? (192.168.76.69) at 0:a0:c9:93:ba:2f permanent
$B!J!)$O(Bhost$BL>$rIU$1$F$J$$$;$$$@$H;W$$$^$9!K(B

$BA4It%"%I%l%9$,7hDj$7$F$$$l$P!"(BServer$B$+$i(BClient$B$K%G!<%?E>Aw$r3+;O$7$^$9!#(B
$B$=$N$"$H!"A4A3$J$K$b$$$8$i$:$K$$$k$H!"#2#0J,0L8e$K!"FMA3(BServer$B$G(Bsendto$B%(%i!<(B
$B$,=P$FE>Aw$G$-$J$/$J$j$^$9!#%(%i!<$NFbMF$O!I(BNo route to Host$B!I$H$J$C$F$$$^(B
$B$9!#(B

$B$=$N$H$-!"(Barp$B$7$F$_$k$H!"(BServer$B!"(BRouter$B$N$I$l$+$G<!$.$N$h$&$K(Bimcomplete$B$K(B
$B$J$C$F$$$^$9!#(B

arp -a $BNc(B
? (192.168.75.8) at 0:0:e2:1f:87:77
? (192.168.76.68) at (incomplete)
? (192.168.76.69) at 0:a0:c9:93:ba:2f permanent

$B$5$i$K!"$*$+$7$J$3$H$K!"(BServer$B!](BClient$B$N%G!<%?E>Aw$$$C$5$$$;$:$K!"$?$@%^%7!<(B
$B%s$rN)$A>e$2$F$*$$$?$@$1$G$b#2#0J,0L8e$K(Barp $B$7$F$_$k$H$I$l$+$,(Bincomplete$B$H$J(B
$B$j$^$9!#(B

ARP$B$N(Bcache$B$N=q$-49$((BTimeOut$B$,#2#0J,$J$N$G!"$=$l$H4X78$7$F$$$k$3$H$^$G$OJ,$+(B
$B$j$^$7$?$,!"(B

$BJ,$+$i$J$$$N$O!"(B
$B#1!%(BARP$B$N(Bcache$B$N=q$-49$((BTimeOut$B$K$J$C$?$i!"<+F0E*$K!JE>Aw$9$k(B IP  packet$B$,$J(B
$B$/$F$b!K(BARP request$B$r=P$9$N$+!#(B
$B#2!%<+F0E*$K(BARP request$B$r=P$9$H$7$?$i!"$J$<!":G=i$ONI$+$C$?$N$K(Bincomplete$B$H(B
$B$J$k$N$+!#(B
$B#3!%(Bmulticast$B$N@_Dj$,0-$$$N$+!#(Bmulticast$B$N(B router table$B$H(BARP$B$O$I$N$h$&$K4XO"(B
$B$9$k$N$+!#(B
$B#4!%$I$N$h$&$KBP:v$7$?$iNI$$$+!#(B

Server$B!"(BRouter$B$N@_Dj$O(Brc.conf$B$G!"(B
default_router$B$ONY@\%^%7!<%s$K$7$F$$$^$9!#(B
routed$B!"(Bmrouted$BN>J}F0$+$7$F$$$^$9!#(B

$B$J$K$+!"$*J,$+$j$NJ}$*$j$^$7$?$i$*65$(2<$5$$!#(B

Masahiro Ariga
mariga@cd.mbn.or.jp


