Public Subnet re-assignments

Tue Jun 25 22:30:39 UTC 2019

Also, what do you mean by “join to /30 public subnets to a /29”? You can’t overlap subnets, if that’s what you’re thinking.

 -mel

> On Jun 25, 2019, at 3:27 PM, Mel Beckman <mel at beckman.org> wrote:
> 
> 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
>> 
>> 
> 