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Date: Sun, 28 Feb 1999 11:16:07 +0900 (JST)
From: Minoru Oikawa <mino@bb.imagica.co.jp>
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Subject: [FreeBSD-net-jp 1397] Re: subnetmask
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 $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

> Date: Sat, 27 Feb 1999 23:47:23 +0900
> From: "Kono Ken'ichi" <s96355kk@sfc.keio.ac.jp>
> Message-Id: <36D8057B3AC.5174S96355KK@ma4.justnet.ne.jp>

> $B!!=i$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?

> $B!!$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

 $B$=$l$r9pCN$9$kEXNO$,$J$5$l$F$$$J$$$J$i!"J9$-$K9T$/$7$+L5$$(B
$B$G$7$g$&!#(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:#!"$H$"$k%M%C%H%o!<%/$GA4It$d$C$F$_$^$7$?$1$I!"$I$l$b5!G=(B
$B$7$^$7$?$M!#(B

# $B$C$F@_Dj$7$?$N$O;d<+?H!"$@$+$i$"$?$j$^$($@$1$I(B :->

 $B$b$A$m$s!"!V?/F~<T$K2?$b65$($?$/$J$$$+$i9pCN$7$J$$!W$H$$$&(B
$B@_7W%]%j%7!<$bM-$j$G$9$+$iJ9$-$K9T$/$7$+L5$$!"$C$F$3$H$bM-$k(B
$B$G$7$g$&!#(B

# $B$D$^$jN)>l$rJQ$($F$_$k$H!"9pCN$NEXNO$r$7$F$$$F%f!<%6$KM%$7(B
#$B$$%M%C%H%o!<%/$F$N$O!"?/F~<T$,Bg4?7^$9$k$"$^$A$c$s%M%C%H%o!<(B
#$B%/!"$H$b8@$($k$N$M(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 :-)

 $B9q$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

> $B!t$"$H!"$=$N%;%0%a%s%H$N%G%U%)%k%H%2!<%H%&%'%$$rD4$Y$kJ}K!$,$"$l$P!"(B
> $B!t65$($F$/$@$5$$(B

 default $B$G$9$+(B? $B$=$l$OWs0UE*$J$b$N$J$N$G!"J9$+$J$$$HH=$j$^(B
$B$;$s$M!#(B

 $BF0E*%k!<%F%#%s%0%W%m%H%3%k$,N.$l$F$$$k$J$i$=$l$rJ9$/!#(B
 $BN.$l$F$$$J$$(B or $BJ9$1$J$$$J$i%M%C%H%o!<%/%*%Z%l!<%?$d4IM}<T(B
$B$KJ9$-$K9T$/!#(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

> $BF0E*%k!<%F%#%s%0%W%m%H%3%k$,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

 $B$=$N%[%9%H!"4IM}<T$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

 $B$`$+$7!"(BRIPv1 $B$J;~Be$K$O$3$l$GBgJQG:$^$5$l$?$b$N$G$9$,(B($B>P(B)
 $B$G!"2a5n$K0-$5$r$7$F$$$?5?$$$NM-$k$H$3$m$d4m$J$=$&$J$H$3$m(B
$B$O(B RIP $B$b(B OSPF $B$bJ9$$$F$"$2$J$$!"C}$k;v$9$i$7$J$$!"$H!#(B

--- mino 
