I have a vendor that I need to whitelist a large block of addresses that they use. The network range they want me to whitelist looks like this:
130.130.130.0/21 (this isn't their actual range, but this is an example of what I need to whitelist), it's a class B network with a 255.255.248.0 mask
Is there a way I can whitelist a whole subnet like that? I am not worried about whitelisting this many addresses as they own all the IP's. I just need an easy way to punch in 2000 addresses as a block as I'll never finish if I do it manually.
Thanks!