How to calculate size of memory by given a range of address?
In your example for Range 1, you are correct. That is the size of the memory, stated in hexidecimal, in bytes. You may gain the most insight by first converting 00FF FFFF to a …
hex - hexadecimal converting back into decimal - Stack Overflow
1) Is FFFF a mix of both hexadecimal and decimal notation? How does FFFF equals 2^16? I don't understand how to interpret FFFF. The right most F represents 8 4 2 1, the second most F …
Regex pattern for IPv6 netmask from for a given prefix /1 - /128
Dec 26, 2022 · I'm trying to write a regex for accepting IPv6 subnet from 8000:: to ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff. The subnet is based on the prefix range between /1 - 128 Example …
Why unsigned int 0xFFFFFFFF is equal to int -1? - Stack Overflow
In C or C++ it is said that the maximum number a size_t (an unsigned int data type) can hold is the same as casting -1 to that data type. for example see Invalid Value for size_t Why? I …
Express.js req.ip is returning ::ffff:127.0.0.1 - Stack Overflow
Apr 2, 2015 · 237 ::ffff: is a subnet prefix for IPv4 (32 bit) addresses that are placed inside an IPv6 (128 bit) space. IPv6 is broken into two parts, the subnet prefix, and the interface suffix. Each …
node.js - Stripping "::ffff:" prefix from request.connection ...
Jun 28, 2015 · The example address ::ffff:192.168.1.10 is legitimate! The question isn't whether the IPv6 address is legitimate; it's whether you can get a legitimate IPv4 address by stripping …
How to get remote client address in Express.js - Stack Overflow
While the answer from @alessioalex works, there's another way as stated in the Express behind proxies section of Express - guide. Add app.set('trust proxy', true) to your express initialization …
request.connection.remoteAddress Now Prefixed in ::ffff in node.js
I recently changed my router over to one provided by Google for Google Fiber (yay!) and now I am noticing a change in what I am seeing when I inspect request.connection.remoteAddress …
Calculating all addresses within a subnet...for IPv6
May 23, 2017 · A standard IPv6 subnet is /64 (a few special cases use other mask lengths), and the usable addresses are from <subnet>:: to <subnet>:ffff:ffff:ffff:ffff. There is no reservation for …
When is the hybrid IP notation ::ffff:192.168.1.4 appropriate?
May 2, 2011 · When is the hybrid IP notation ::ffff:192.168.1.4 appropriate? Asked 14 years, 6 months ago Modified 10 years, 8 months ago Viewed 24k times