4 ms·

not sure if thats true, its hard to find things on IPv6 currently. Is there any practical way to scan IPv6 ranges? its so large you cant really NMAP scan around

SadWebDeveloper 9y ago
https://news.ycombinator.com/item?id=8804629 https://news.ycombinator.com/item?id=8804629 There is no tool yet available but with IPv6 numbers going up it just matter of time before it become a necessity.
- gerdesj 9y ago
  IPv6 is not IPv4 (FFS.) Read up on multicast. Do you actually have any experience of IPv6?
  - SadWebDeveloper 9y ago
    Do you actually have any experience scanning for devices on the internet? or have a proper argument rather than "learn multicast"?... so many salty net-engies on the internet, IPv6 will bring an era of chaos with every "IOT device" not being well configured and allow external access or don't have a firewall built-in.
bb88 9y ago
Isn't the entire point of having 264 address space is to make it hard to scan? Basically you're looking for a needle in a haystack.
- gerdesj 9y ago
  No: 128 bit address space isn't designed to be hard to scan (see multicast for example.) One of IPv6's design goals was/is to avoid running out of address space - that means a large space. If you naively scan individual addresses then you will not get very far. Please read up on IPv6 before posting - it's been available for 19 years or so now. I'll grant you that a lot of the write ups on it are absolute bollocks but you should be able to find a reasonably good treatise somewhere. Look for names that you trust.
  - bb88 9y ago
    In my defense, I asked a question. :) You can answer it without being rude.
gerdesj 9y ago
Read up on multicast addresses (which IPv4 also has but not enforced) but yes, if you are not local (wire-wise) then subnet scanning will take a while.
- SadWebDeveloper 9y ago
  > will take a while. Like in the old days, when scanning the entire IPv4 was seen unfeasible due to the high latency low speed internet but those numbers are going up each day on both network speeds and going down for latency by the time we have 100% IPv6 deployments it will be fast enough. Mirai 2.0 in the making thanks to net-engies pushing IPv6 hard.

SadWebDeveloper 9y ago

https://news.ycombinator.com/item?id=8804629 https://news.ycombinator.com/item?id=8804629 There is no tool yet available but with IPv6 numbers going up it just matter of time before it become a necessity.

gerdesj 9y ago
IPv6 is not IPv4 (FFS.) Read up on multicast. Do you actually have any experience of IPv6?
- SadWebDeveloper 9y ago
  Do you actually have any experience scanning for devices on the internet? or have a proper argument rather than "learn multicast"?... so many salty net-engies on the internet, IPv6 will bring an era of chaos with every "IOT device" not being well configured and allow external access or don't have a firewall built-in.

bb88 9y ago

Isn't the entire point of having 264 address space is to make it hard to scan? Basically you're looking for a needle in a haystack.

gerdesj 9y ago
No: 128 bit address space isn't designed to be hard to scan (see multicast for example.) One of IPv6's design goals was/is to avoid running out of address space - that means a large space. If you naively scan individual addresses then you will not get very far. Please read up on IPv6 before posting - it's been available for 19 years or so now. I'll grant you that a lot of the write ups on it are absolute bollocks but you should be able to find a reasonably good treatise somewhere. Look for names that you trust.
- bb88 9y ago
  In my defense, I asked a question. :) You can answer it without being rude.

gerdesj 9y ago

Read up on multicast addresses (which IPv4 also has but not enforced) but yes, if you are not local (wire-wise) then subnet scanning will take a while.

SadWebDeveloper 9y ago
> will take a while. Like in the old days, when scanning the entire IPv4 was seen unfeasible due to the high latency low speed internet but those numbers are going up each day on both network speeds and going down for latency by the time we have 100% IPv6 deployments it will be fast enough. Mirai 2.0 in the making thanks to net-engies pushing IPv6 hard.