Is it possible to allow ICMP4 for PMTUD into a NAT'd network? As far as my understanding goes simply allowing it to the firewall doesn't do much good as the firewall isn't responsible for ...
Recently, my firewall was caught with a bug that cause it to blacklist itself: when it encountered a packet with the "No not fragment" flag set too big to fit on the next hop, it would return an ICMP ...
ICMP (Internet Control Message Protocol) is a network layer error-reporting protocol that's used to communicate data transmission problems. Network devices, such as ...
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