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Address mask can be set to 0. ICMP Address Mask Request may be used as a part of reconnaissance attack to gather information on the target network, therefore ICMP Address Mask Reply is disabled by default on Cisco IOS. [18]
Examples include blocking address masks and timestamps from outgoing ICMP control-message traffic, and blocking ICMP echo replies. A security tool can alert to potential fingerprinting: it can match another machine as having a fingerprinter configuration by detecting its fingerprint.
The Reverse Address Resolution Protocol (RARP) is an obsolete computer communication protocol used by a client computer to request its Internet Protocol address from a computer network, when all it has available is its link layer or hardware address, such as a MAC address. [1]
Subnet mask: 4 octets: Client's subnet mask as per RFC 950. If both the subnet mask and the router option (option 3) are included, the subnet mask option must be first. 2: Time offset: 4 octets: Offset of the client's subnet in seconds from Coordinated Universal Time (UTC). The offset is expressed as a two's complement 32-bit integer.
The contents of the ICMP Address Mask Request page were merged into Internet Control Message Protocol on 2012-12-20. For the contribution history and old versions of the redirected page, please see ; for the discussion at that location, see its talk page.
BWPing is a tool to measure bandwidth and response times between two hosts using Internet Control Message Protocol echo request/echo reply mechanism. [1] It does not require any special software on the remote host. The only requirement is the ability to respond on ICMP echo request messages. [2] BWPing supports both IPv4 and IPv6 networks. [3]
4. Open the DataMask by AOL application file. 5. Click Run. 6. Click Next. 7. Click I Agree to accept the License Agreement. 8. Select to reboot your computer now or later. 9. Click Finish. 10. Once your computer restarts, click Enable to allow the software to run on your browser.
This message is called a “BOOTP request”, and it is picked up by the BOOTP server, which replies to the client with the following information that the client needs: The client's IP address, subnet mask, and default gateway address. The IP address and host name of the BOOTP server.