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    ~ The 'Makefile' has been renamed to 'Makefile.example' so that working copies... · e79331a3
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    ~ The 'Makefile' has been renamed to 'Makefile.example' so that working copies can tweak in their local 'Makefile' file without commit such configurations to the repo.
    ~ The default make targets and respectively their output files 'IPv4.rules' and 'IPv6.rules' aren't handy for completion on the console. The default base configs are now called '4.rules' and '6.rules'
    ~ A new 'reset' make target was added which just uses ip(6)tables-restore on the default configs to reset the firewall without the necessity to process '4.rules' and '6.rules' targets again. A convenient way to just reset the firewall.
    ~ iptables-save isn't called implicitly when running ipturntables.sh anymore, that cluttered the output too much when using small additional calls. Instead the keywords VERBOSE, LIST_RULES or SHOW_RULES can be used to output the rules tables to stdout. In default these aren't printed anymore but in a full make run this is explicitly set to have a full output there only.
    ~ ICMP route & neighbor discovery has been revised. The ICMP subtype 143 was added to the output chain to allow "multicast listener report V2" and some additional comments about the ICMP subtypes were added.
    ~ An INVALID chain has been added and is called in the BLOCK chain which usally logs just '[BLOCKED]' but when a packet is invalid the log-prefix now adds '(Invalid)'. Invalid packets give a good indication if someone's trying something suspicous and can be differentiated from usual packets getting blocked.
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