[ntp:questions] IPv6 and ip6tables

Rob nomail at example.com
Wed Mar 13 13:28:37 UTC 2013


Alexandre Y. Harano <harano at nic.br> wrote:
> In IPv4 firewalls, people usually blocks ICMPv4 messages.

That is not a good idea either.  It will cause weird problems.

When you block ICMPv4 you need to know what message types to
block and what the effect will be.



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