[AfrIPv6-Discuss] Need of help for scaning ipv6 block

[Olivier MJ Crépin-Leblond]

Hello all,

I'm reading this thread with interest. Wasn't it frowned upon at some
point, to do such widespread network scanning using nmap, and aren't
some firewalls/software set-up to detect such network scanning and block
it automatically? In which case, results are unlikely to show all devices.
Kindest regards,

Olivier

On 05/11/2019 05:59, Alejandro Acosta wrote:

> Hello Daniel,

>

>   First, happy to tell you hello.

>

>   Second, I just double checked the nmap network scannning and you are

> right, it's supported now, when was added?. Actually if you google for

> networking scanning IPv6 with nmap almost all pages mention it does not

> exist. I have an old version of nmap with no support, I just install a

> new one and guess what, it has the option:

>

> nmap -6 -sP 2001:abcd:7002:4128:/64

>

>  

>

>   Wow, what a horrible option, hahaha, in theory scanning a single /64

> must be around 30 years.

>

>

> Thanks for the update.

>

>

> Alejandro,

>

>

> On 11/4/19 3:53 PM, Daniel Shaw wrote:

>> On Mon, 4 Nov 2019 at 06:33, Alejandro Acosta

>> <alejandroacostaalamo at gmail.com> wrote:

>>

>>>   The take away of Jordi's message and our message in general is that you need to take a different approach, you can not just scan the full IPv6 address space; you mentioned nmap however AFAIK nmap does not allow IPv6 host scanning.

>> Hi Alejandro, all,

>>

>> This is a side diversion, however, just FYI, nmap does indeed support

>> IPv6 just fine. However as pointed out, due to the sheer size of the

>> address space, it's not practical to use it to scan a prefix. But for

>> a detailed scan of a single host's ports/services, yes, you can use v6

>> with nmap.

>>

>> Cheers,

>> Daniel

>>

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