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rooneybuk
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Reject Private IP DHCP Offer

Sat May 06, 2023 7:04 pm

Can I reject private IP DHCP offers on the firewall?
 
rooneybuk
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Re: Reject Private IP DHCP Offer

Mon Sep 11, 2023 4:45 pm

I'm try to re-ignite this post as I still don't have a good solution
 
erlinden
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Re: Reject Private IP DHCP Offer

Mon Sep 11, 2023 5:25 pm

Can you explain a bit more?
 
holvoetn
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Re: Reject Private IP DHCP Offer

Mon Sep 11, 2023 5:28 pm

You can reject/block quite a bit on firewall but as previous poster correctly mentions, you may want to explain a bit more what the intention is, why, which context, ...
 
rooneybuk
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Re: Reject Private IP DHCP Offer

Mon Sep 11, 2023 5:32 pm

My ISP modem provides an IP in the range 192.168.100.0/24 first then once this is rejected it then provides a public IP
 
erlinden
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Re: Reject Private IP DHCP Offer

Mon Sep 11, 2023 5:39 pm

Based on my feeling: nope.
I would think of either doing some scripting (IP change?) or getting a different ISP.
What ISP do you have? And how do you currently "reject" the private IP address offer?
 
rooneybuk
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Re: Reject Private IP DHCP Offer

Mon Sep 11, 2023 5:45 pm

none Mikrotik's equipment rejects RFC1918 by default, I know this isn't a bad thing from a Mikrotik perspective but it would be helpful if there was a way to do it.

the ISP is Virgin Media UK

The below article describes the process quiet well

https://theserpent.co.uk/posts/virgin-m ... only-mode/

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