On Fri, Nov 25, 2016 at 06:52:55PM +0100, Phil Sutter wrote: > This was an annoying bug in the translator since it silently dropped > crucial information which is easily overlooked: > > | $ iptables-translate -A INPUT -s 192.168.0.0/24 -j ACCEPT > | nft add rule ip filter INPUT ip saddr 192.168.0.0 counter accept > | $ ip6tables-translate -A INPUT -s feed:babe::/64 -j ACCEPT > | nft add rule ip6 filter INPUT ip6 saddr feed:babe:: counter accept > > To my surprise, this fix works really well in all kinds of situations: > > | $ iptables-translate -A INPUT -s 1.2.3.4/0 -j ACCEPT > | nft add rule ip filter INPUT counter accept > | > | $ iptables-translate -A INPUT -s 1.2.3.4/23 -j ACCEPT > | nft add rule ip filter INPUT ip saddr 1.2.2.0/23 counter accept > | > | $ iptables-translate -A INPUT -s 1.2.3.4/24 -j ACCEPT > | nft add rule ip filter INPUT ip saddr 1.2.3.0/24 counter accept > | > | $ iptables-translate -A INPUT -s 1.2.3.4/32 -j ACCEPT > | nft add rule ip filter INPUT ip saddr 1.2.3.4 counter accept > | > | $ iptables-translate -A INPUT -s 1.2.3.4/255.255.0.0 -j ACCEPT > | nft add rule ip filter INPUT ip saddr 1.2.0.0/16 counter accept > > Ditto for IPv6.
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