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Old 21st June 2020
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jggimi jggimi is offline
More noise than signal
 
Join Date: May 2008
Location: USA
Posts: 7,977
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Quote:
Originally Posted by e1-531g View Post
...I recall Gmail also have not accepted mail sent by other server (different domain) via IPv6 protocol...
Most of my incoming Gmail arrives via IPv6. They appear to prefer it to IPv4 when available.

Both ICMPs are state-managed by PF, so stateful tracking options are available to rate limit them, such as:
Code:
pass proto {icmp icmp6} keep state (max 5000)
I haven't needed this, so far.

Last edited by jggimi; 21st June 2020 at 03:11 PM. Reason: typo
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