Let's say you have given your computer screens on remote to someone to troubleshoot something in your computer. in that case, let's say you don't want to show your pinned bookmark of your browser to that person.
To hide the bookmark, You have to press the (Ctrl+Shift+B) key to hide the pinned bookmarks of your browser..!
Subnet Mask tells us the number of network bits and the number of host bit present in an IP.
Wildcard mask is used to identify which bits in an IPv4 address to match. In which binary 1 is equal to a match and binary 0 is not a match.
A Wildcard mask is used in ACL to match the IP address in a better way to permit or deny . and also in some routing protocols, we use wildcard masks to advertise the network such as OSPF etc..!
Wildcard masks use the following rules to match binary 1s and 0s:
Wildcard mask bit 0: Match the corresponding bit value in the address.
Wildcard mask bit 1: Ignore the corresponding bit value in the address.
Starting value | 255.255.255.255 |
Subtract the subnet mask | –255.255.255. 0 |
Resulting wildcard mask | 0. 0. 0.255 |
Starting value | 255.255.255.255 |
Subtract the subnet mask | –255.255.255.240 |
Resulting wildcard mask | 0. 0. 0. 15 |
Starting value | 255.255.255.255 |
Subtract the subnet mask | –255.255.254. 0 |
Resulting wildcard mask | 0. 0. 1.255 |
| Slash | Netmask | Wildcard mask |
|---|---|---|
| /32 | 255.255.255.255 | 0.0.0.0 |
| /31 | 255.255.255.254 | 0.0.0.1 |
| /30 | 255.255.255.252 | 0.0.0.3 |
| /29 | 255.255.255.248 | 0.0.0.7 |
| /28 | 255.255.255.240 | 0.0.0.15 |
| /27 | 255.255.255.224 | 0.0.0.31 |
| /26 | 255.255.255.192 | 0.0.0.63 |
| /25 | 255.255.255.128 | 0.0.0.127 |
| /24 | 255.255.255.0 | 0.0.0.255 |
| /23 | 255.255.254.0 | 0.0.1.255 |
| /22 | 255.255.252.0 | 0.0.3.255 |
| /21 | 255.255.248.0 | 0.0.7.255 |
| /20 | 255.255.240.0 | 0.0.15.255 |
| /19 | 255.255.224.0 | 0.0.31.255 |
| /18 | 255.255.192.0 | 0.0.63.255 |
| /17 | 255.255.128.0 | 0.0.127.255 |
| /16 | 255.255.0.0 | 0.0.255.255 |
| /15 | 255.254.0.0 | 0.1.255.255 |
| /14 | 255.252.0.0 | 0.3.255.255 |
| /13 | 255.248.0.0 | 0.7.255.255 |
| /12 | 255.240.0.0 | 0.15.255.255 |
| /11 | 255.224.0.0 | 0.31.255.255 |
| /10 | 255.192.0.0 | 0.63.255.255 |
| /9 | 255.128.0.0 | 0.127.255.255 |
| /8 | 255.0.0.0 | 0.255.255.255 |
| /7 | 254.0.0.0 | 1.255.255.255 |
| /6 | 252.0.0.0 | 3.255.255.255 |
| /5 | 248.0.0.0 | 7.255.255.255 |
| /4 | 240.0.0.0 | 15.255.255.255 |
| /3 | 224.0.0.0 | 31.255.255.255 |
| /2 | 192.0.0.0 | 63.255.255.255 |
| /1 | 128.0.0.0 | 127.255.255.255 |
| /0 | 0.0.0.0 | 255.255.255.255 |
By using CMD, You can use the below given command to ping to any destination with having date and time .
ping -t google.com|cmd /q /v /c "(pause&pause)>nul & for /l %a in () do (set /p "data=" && echo(!date! !time! !data!)&ping -n 2 google.com>nul"
In this blog i will show you, How you can ping to a destination with date and time by using CMD and also you can export the ping report to a text.
Find the command given below.
