While ICMP is required for IP network traffic redirection and pinging hosts on your LAN or WAN, ICMP can also pose a security concern. David Davis tells you about the basics of ICMP and how to filter ...

Hi everyone.<BR><BR>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 ...

Recently, I noticed that there has been a surge in ICMP packets between some of my Active Directory controllers and Exchange servers. Virus scanning proved that the servers were clean. Is there any ...