Extended ACLs are advanced than the Standard ACLs. Unlike the Standard Access Lists where it checks only the Source IP Address to control the flow of the packets, Extended ACLs can check the
Source & Destination Address
Protocols (IP,ICMP,TCP,UDP)
Source & Destination ports
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Windows XP has got a GUI Network Diagnostics tool built-in. This tool can perform a series of Network scans and display results in a nice presented format. This can also be exported to a file, if needed to send to a technician offcite to troubleshoot. Read more… »
netstat is one of the most commonly used tool in Windows and UNIX & Linux operating systems to troubleshoot TCP/IP connections. Netstat displays active TCP connections, ports on which the computer is listening, Ethernet statistics, the IP routing table, IPv4 statistics (for the IP, ICMP, TCP, and UDP protocols), and IPv6 statistics (for the IPv6, ICMPv6, TCP over IPv6, and UDP over IPv6 protocols). Used without parameters, netstat displays active TCP connections. Read more… »
TCPView is a Windows program that will show you detailed listings of all TCP and UDP endpoints on your system, including the local and remote addresses and state of TCP connections. Read more… »
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