Public Subnet re-assignments

Mel Beckman mel at beckman.org
Tue Jun 25 22:27:13 UTC 2019


You’re using just the two middle IPs in the four that make up the /30 set, right? IOW, the subnet x.x.x.0/30 should have .0 and .3 unused (they’re broadcast), and you use .1 and .2.

 -mel

> On Jun 25, 2019, at 9:41 AM, Scott <scott at viviotech.net> wrote:
> 
> First, sorry if this is a bit of a noob question.
> 
> I'm trying to find a way of preventing a slew of traffic to an IP, or
> IP's, when I join two /30 public subnets to a /29. It appears that while
> the ranges are /30 someone is trying to brute-force the network and/or
> broadcast addresses for the ranges. When I change them to be a /29, now
> the router sees the traffic and starts dropping packets. Are there any
> suggestions for mitigating this behavior or is it just the nature of the
> beast?
> 
> -- 
> 101010
> 
> 



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