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Date: Sun, 28 Feb 1999 18:46:06 +0900
From: "Kono Ken'ichi" <s96355kk@sfc.keio.ac.jp>
To: FreeBSD-net-jp@jp.freebsd.org
In-Reply-To: <199902280216.LAA03530@serv1.hq.imagica.co.jp>
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Subject: [FreeBSD-net-jp 1402] Re: subnetmask
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$B9CLn$G$9(B

Minoru Oikawa <mino@bb.imagica.co.jp> wrote:

>  $B$3$N%R%H$,$&$A$N%M%C%H%o!<%/$N=;?M$G$"$k!"$H$$$&5$;}$A$G=q(B
> $B$$$F$_$^$7$?!#$U$U$U$N$U!#(B

$B!!@lLg2H$8$c$J$$$1$I!"$J$^$8%M%C%H%o!<%/$K$D$$$FCN$C$F$k%f!<%6!<$C$F$N$,(B
$B%M%C%H%o!<%/4IM}<T$K$H$C$F0lHVLBOG$J5$$,$9$k(B...$B$=$l$C$FKM$N$3$H(B...

> > $B!!=i$a$O!"(B/etc/rc.conf$B!!$K(Bdefault gateway$B!!(B192.168.36.1$B$r@_Dj$7$D$D!"(B
> > OSPF$B$b;H$&$H$$$&!"$$$+$5$^$J%O%$%V%j%C%H%k!<%F%#%s%0$7$F$$$?$N$G!"30$N@$(B
>  $B$J$s$G!V$$$+$5$^!W$J$s$G$9$+(B?

$B!!<B:]!"(BCISCO Router$B$r$$$8$C$?$3$H$OL5$$$N$GNI$/J,$+$j$^$;$s$,!"(B

$B!!(BOSPF$B$H@EE*%k!<%F%#%s%0$rF15o$5$;$F!"%O%$%V%j%C%H%k!<%F%#%s%0$H8@$&>l9g!"(B
$BIaDL!"F0E*%k!<%F%#%s%0$,$*$+$7$/$J$C$?;~!"%k!<%?!<4IM}<T$,@_Dj$7$?@EE*7P(B
$BO)$N=E$_$K4p$E$$$F!"%P%C%/%"%C%W$N@EE*%k!<%F%#%s%0$,9T$o$l$k$N$G!"(B

$B!!=E$_$b$/$=$bL5$/LdEzL5MQ$K!"(B/etc/rc.conf$B$K!!(B192.168.36.1$B!!$H@EE*7PO)$r(B
$B@_Dj$9$k$N$O!"$$$+$5$^$@$H;W$C$?$o$1$G$9!#(B

> > $B!!$G!"$G$9$M!"%M%C%H%o!<%/4IM}<T$KD>@\J9$+$J$$$G!"%5%V%M%C%H%^%9%/$rCN$k(B
> > $B$3$H$O=PMh$k$N$G$9$+!)(B
> > $B!J$D$^$j!"(BOS$B>e$+$i2?$+$N%3%^%s%I$GD4$Y$k$3$H$O=PMh$k$N$G$9$+!)!K(B
>  1. DHCP $B$G9pCN$5$l$F$$$k$J$i(B dhcp $B$J%/%i%$%"%s%H$r@_CV(B
>  2. DNS $B$G9pCN$5$l$F$$$k$J$i(B
> 	nslookup 0.0.0.10.in-addr.arpa.
>    $B$J$I$H$7$F$_$k!#$D$$$G$K(B
> 	nslookup -q=PTR 0.0.0.10.in-addr.arpa.
>    $B$G%M%C%H%o!<%/$NL>A0$,=P$FMh$k$O$:(B?
>  3. SNMP $B$G9pCN$5$l$F$$$k$J$i(B ucd-snmp $B%Q%C%1!<%8F~$l$F(B
> 	snmpwalk ... ip.ipAddrTable.ipAddrEntry.ipAdEntNetMask
>    $B$H$+$"$?$j$rFI$s$G$_$k!#(B
> $B$J$I!#$[$+$K$bM-$k$G$7$g$&$+(B > $B<1<T(B

$B!!$J$k$[$I!"(B2$B$J$i!"0lHL%f!<%6!<$NKM$G$b=PMh$=$&$G$9!#(B

> >  $BKM$,;W$$$D$/$N$O!"(B192.168.36.0$B!!$N%;%0%a%s%H>e$K$"$k%[%9%H$G!!(Btcpdump$B$9(B
>  $B$J$s$FLnHZ$J(B :-)

$B!!$(!"$"!"$O$$!"$9$_$^$;$s!#;W$$$D$+$J$+$C$?$b$N$G!#(B
1$B!A(B3$B$N$h$&$J$3$H$r$9$0$K;W$$$D$1$k?M$K$J$j$?$$$G$9!#(B

$B!!(B2$B$J$s$F!"Ev$?$jA0$N$3$H$J$N$K!";W$$$D$-$^$;$s$G$7$?!#(B

>  $B9q$K$h$C$F$OHH:a$K$J$k$+$b$7$l$^$;$s!#AH?%$K$h$C$F$OFb5,$G(B
> $B6X$8$i$l$F$$$k$+$bCN$l$^$;$s!#(B
>  $B$o$?$7$J$i!">u67$,$o$+$k$^$G$=$s$J4m$J$$;v$d$j$^$;$s$,!#(B

$B!!$=$3$^$G$d$C$F$O$$$1$J$$$3$H$@$C$?$H$OCN$j$^$;$s$G$7$?!#(B
$B!tL5CN$O:a$@$J$!!#(B

> > $B!t$"$H!"$=$N%;%0%a%s%H$N%G%U%)%k%H%2!<%H%&%'%$$rD4$Y$kJ}K!$,$"$l$P!"(B
> > $B!t65$($F$/$@$5$$(B
>  $B$"!"(Brouted $B$d(B gated $B$GJ9$-$?$$$H$-$O!"!VC}$i$J$$!W@_Dj$r$I(B
> $B$&$d$k$+$A$c$s$HGD0.$7$F$+$i$K$7$F$/$@$5$$$M!#(B
>  $B$$$-$J$jIT@5$J(B RIP/OSPF $BN.$7$FBg:.Mp!"$C$F$N$O4*J[$7$F!#(B

$B!!$9$_$^$;$s!#(Bpriority 0 $B$G$b4*J[$7$F$/$l$J$$$C$9$+(B

> > $BF0E*%k!<%F%#%s%0%W%m%H%3%k$,N)$A>e$,$C$F$$$k%[%9%H$K%"%+%&%s%H$,$"$l$P!"(B
> > $BD4$Y$k$3$H$,=PMh$k$H;W$&$N$G$9$,!"(B
>  $B$$$$$(!">o$K$=$l$,@5$7$$$H$O8@$($^$;$s!#(B
>  $B$b$&$9$3$7A0Ds>r7o$,$J$$$H!#(B

$B!!$d$C$Q$j!"%M%C%H%o!<%/4IM}$N<BL37P83$,$"$^$jL5$$$N$G!J4y>e$NM}O@$@$1$G(B
$BJY6/$7$F$$$k$N$G!"!K!!$*$$$+$o$5$s$NA[Dj$9$kA0Ds>r7o$O!"$J!<$s$K$b;W$$$D(B
$B$-$^$;$s!#$3$&$$$&8uJd$,$"$k$h$H$$$&$N$,$"$l$P!"65$($F$/$@$5$$!#(B

>  $B$=$N%[%9%H!"4IM}<T$NCN<1$K4p$E$$$F@_Dj$5$l$F$$$k$N$J$i!"??(B
> $B$G$7$g$&$M$'!#$"$?$j$^$($@!#(B
>  $B$$$-$J$jN)$A>e$2$?5!3#$J$i!"$I$&$J$k$+$O$=$N%M%C%H%o!<%/$N(B
> $B>u67$K0M$k$G$7$g$&!#$?$H$($P$&$A$N2q<R$@$H!"0J2<$N$h$&$J5,B'(B
> $B$OM-$j$^$;$s!#(B
> <> $B%[%9%H$r@_CV$9$k:]!"(Brouted/gated $B$rN)$A>e$2$F$O$$$1$J$$(B
>  $B$H$$$&$3$H$G!"(Bofficial $B$J%k!<%?$OAj<j$,(B un-official $B$J$d$D(B
> $B$J$iAj<j$K$7$^$;$s!#(B
>  $B$b$C$H$b2a7c$K@_Dj$5$l$?%5%V%M%C%H$J$i$P!"7PO)>pJs$K78$o$k(B
> $B%b%N$OA4$FL5;k!"$?$H$(%k!<%?CV$$$F$b!"G'$a$i$l$J$1$l$PF0E*%k!<(B
> $B%F%#%s%0$K1F6A$7$J$$$h$&$K$7$F$$$k!"$H$$$&$H$3$m$bM-$j$^$9!#(B

$B!!$=$&$+!"A0Ds>r7o$O!"$=$N%M%C%H%o!<%/$K$h$C$F!"L58B$K!J!)!KB8:_$9$k$+$i!"(B
$B%j%9%H%"%C%W$9$k$N$OFq$7$$$+$b$7$l$^$;$s$M!#(B

-----
$B9CLn!!8,0l!!7D1~Bg3X(BSFC$B!!%9%Z%$%s8l8&5f<<(B
s96355kk@sfc.keio.ac.jp
