Tim Connors writes:
> -A RH-Firewall-1-INPUT -s 12.3.4.5/16 -p tcp -m tcp -j ACCEPT
One gotcha, which applies at -restore time, but not at -save time:
Like IPv6, in IPv4 you can omit .0 segments:
1.4 --> 1.0.0.4
1.2.4 --> 1.2.0.4 (I think - might be 1.0.2.4)
iptables-restore understands this.
However, if there is a CIDR it expands differently:
1.4/24 --> 1.4.0.0/24
1.2.4/24 --> 1.2.4.0/24
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