3 ms·
> It may allow pings (ICMP) in, but that's usually it. I sure hope it does. Blocking ICMP can cause TCP connections to hang due to inability to do MTU size det
by lokedhs 5y ago
> It may allow pings (ICMP) in, but that's usually it.
I sure hope it does. Blocking ICMP can cause TCP connections to hang due to inability to do MTU size detection.
With IPv4 this is usually not as visible, but with IPv6 if you block ICMP your connections will block as soon as you try to transfer a large block of data.