NAT and bridge are working on different levels in the IP stack - so you can't compare them like that. Bridges are faster, yes, because they work at level 2, NAT works at level 3 + an extra header. If you want to explore netfilter and bridges, check out from the=20 "Ethernet Bridge+Netfilter HOWTO". One link is : http://www.think-future.de/DOCUMENTATION/Ethernet-Bridge-netfilter-HOWTO/Et= hernet-Bridge-netfilter-HOWTO.html Cheers, Kjetil Laasby >=20 > Hello, all. >=20 > As you know, I heard that bridge is more speedy than NAT method, right? > so I would like to setup brideg firewall using iptables. > then, Do you know that any good reference or documents about bridge=20 > firewall using iptables?(As I know, the bridge firewall is availabe only=20 > ipchains.) >=20 > Always so thanks in advance. ;) >=20 >=20 >=20 >=20 > _________________________________________________________________ > =EC=A0=84 =EC=84=B8=EA=B3=84 =EC=96=B4=EB=94=94=EC=84=9C=EB=82=98 =EB=AA= =A8=EB=93=A0 PC=EC=97=90=EC=84=9C =EB=82=B4 PC=EC=B2=98=EB=9F=BC =EC=82=AC= =EC=9A=A9=ED=95=A0 =EC=88=98 =EC=9E=88=EB=8A=94 =EC=98=A8=EB=9D=BC=EC=9D=B8= =EC=83=81=EC=9D=98 =ED=95=98=EB=93=9C, MSN=20 > =EC=9B=B9=ED=95=98=EB=93=9C=EB=A5=BC =ED=81=B4=EB=A6=AD=ED=95=98=EC=84=B8= =EC=9A=94. http://msn.webhard.co.kr >=20 >=20
