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Subject: [doc-jp 7960] Re: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-01:08.ipfw
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$B<cNS$G$9(B. 

From: Hiroki Sato
Subject: [doc-jp 7955] Re: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-01:08.ipfw
Message-ID: <20010127.151245.71082207.hrs@eos.ocn.ne.jp>
Date: Sat, 27 Jan 2001 15:12:45 +0900 (JST)

H> 01:08)
H> 
H>  - $B:G=i$K$"$k!V(BTCP $BM=Ls%U%i%0$N%*!<%P%m!<%I!W$N0UL#$,J,$+$j$^$;$s!#(B

$B$&$^$$I=8=$O$o$+$J$$$N$G$9$,(B, 

H>    (ipfw $BFbIt$N=hM}J}K!$NOC(B?)

$B$@$H;W$$$^$9(B. 
ipfw-4.x.patch $B$r$_$k$H(B
	-#define IP_FW_TCPF_ESTAB       0x40
$B$H$$$&9T$H(B
	+#define        TH_ECE  0x40
$B$H$$$&9T$,$"$j$^$9(B. 

$B$I$C$A$b(B 0x40 $B$G$+$V$C$F$$$^$9(B. $BB?J,(B, overload $B$O$3$N$3$H$r;X$7$F$$$k(B
$B$s$G$O$J$$$+$H(B. 

(TCP $B$N%U%#!<%k%I$N0lIt$r(Bipfw $B$,>!<j$K(B established $B$N%U%i%0$H$7$F;H$C(B
$B$F$$$?$,(B, $B<B:]$K$O30It$+$i$=$N%U%i%0$,%;%C%H$5$l$F$d$C$F$/$k%Q%1%C%H$,(B
$B$"$k$N$GAGDL$7!D$H$$$&$3$H$G$O$J$$$+$H(B)

$B$H$3$m$G(B, 

H> ipfw $B$*$h$S(B ip6fw $B$O(B, ECE $B%U%i%0$N%;%C%H$5$l$?$9$Y$F$N%Q%1%C%H$r(B
H> TCP $B@\B3$r3NN)$7$h$&$H$9$k%Q%1%C%H$N0l$D$H$7$F07$$$^$9(B.  

established $B$O(B, $B3NN)$7$h$&$H$9$k%Q%1%C%H$@$1$G$J$/$9$G$K3NN)$7$F$$$k(B
$B%;%C%7%g%s$N%Q%1%C%H$b4^$`$H;W$$$^$9(B. 
--
http://www.wakabaya.net/susumu/				$B<cNS(B $B?J(B
