Hello All,
I've been wading through trying to find an answer but have been unsuccessful. I am trying to add some rules to my firewall (pfsense) and had a question about the "/" for an ipaddress for networks.
For the "network" option, the user is given the option to add /1-31 to the end of an IP address. For example, 4.2.2.1/31
What does the "/31" signify? I am trying to block a range of ip addresses and can't find what this means or if it will help me.
Thanks!
Tim
I've been wading through trying to find an answer but have been unsuccessful. I am trying to add some rules to my firewall (pfsense) and had a question about the "/" for an ipaddress for networks.
For the "network" option, the user is given the option to add /1-31 to the end of an IP address. For example, 4.2.2.1/31
What does the "/31" signify? I am trying to block a range of ip addresses and can't find what this means or if it will help me.
Thanks!
Tim