troubleshooting Question

Relentless spam from a network. How do I find their IP addresses?

Avatar of arthurh88
arthurh88 asked on
NetworkingSoftware FirewallsNetwork Security
11 Comments2 Solutions662 ViewsLast Modified:
I was getting heavily spammed by 23.228.242.34,   So I blocked the IP on our firewall.  Then immediately spam began from 23.238.229.236 and then from 23.238.228.210
The particular spam they are doing is malicious.  They are "botting" our contact forms and trying to send junk mail to our users.  Now even though their messages are getting filtered (users aren't getting them), I still see them.  So ideally, I just want to block them entirely from our website altogether by putting them in a firewall block at the server level (instead of  blocking them at the form level) - that way, these abusers cannot even get to our site to begin with.

It looks like all of these IP's belong to the same network.  I would like to ban the entire range of IP's on this network.  How do I figure that out?
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