TCP Ping A TCP ping sends a TCP SYN or TCP ACK packet to a target IP address. If the target IP address is active it will respond with its netmask (ICMP type 18). ICMP Address Mask Request An ICMP Type 17 message is an address mask request. If the target IP address is active it will respond with the current time (ICMP type 14). ICMP Timestamp An ICMP Type 13 message is a timestamp query.
Sending ICMP ECHO requests to multiple hosts is known as a ping sweep. If the target IP address is active, an ICMP ECHO reply (ICMP type 0) is received. ICMP ECHO Request An ICMP ECHO request is an ICMP type 8 packet, commonly referred to as a ping. Host discovery is often performed by the following basic techniques: ■ Network scanners use a variety of techniques to solicit responses from a target. Sniffer® Wireless Intelligence by Network General ( ▪ĪiroPeek SE by WildPackets ( StumbVerter is an open source tool for mapping the results of a wireless network scan and is available at Read more
IStumbler for Max OSX wireless network discovery ( ▪ Popular wireless network scanners are available at the following URLs: ▪ If you have a policy that prohibits wireless networks, you may want to walk around the facility with a wireless network scanner to see if you detect any unauthorized Wi-Fi networks. These tools are good for detecting open wireless networks in your facility. Wireless network scanners are sometimes referred to as “war-driving” tools or wireless protocol analyzers.
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