networking - Why is ipv6 128bit and not 64bit? - Server Fault
The two are unrelated. The decisions around how to structure IPV6 are myriad. There's a lot of info at the IPv6 Wikipedia article. Basically, the 128-bit address space of IPv6 gives us such a massive …
networking - How does IPv6 subnetting work and how does it differ …
This is a Canonical Question about IPv6 Subnetting. Related: How does IPv4 Subnetting Work? I know a lot about IPv4 Subnetting, and as I prepare to (deploy|work on) an IPv6 network ...
How many public useable IPv6 ips in a /64 range? - Server Fault
Feb 8, 2023 · An IP Address is 128 bit. 64 of that are the IP address within a network, the OTHER 64 bit are the network. And the networks are separated - private address space i.e. LAN only) is NOT …
linux - Why add an IPv6 address as /64? - Server Fault
In many tutorials I see examples to add an IPv6 address on Linux like ip -6 addr add 2001:0db8:0:f101::1/64 dev eth0 Since an IPv6 address has 128 bits and this is only supposed to …
IPv6- loopback and link local addresses - Server Fault
Oct 15, 2015 · 0 Good Afternoon, I'm a bit new to IPv6 and am curious on a couple of things. The loopback address is reserved as ::1 /128. If the mask is /128, wouldn't that indicate no available bits …
Difference between Host record and A record - Server Fault
Jun 19, 2015 · So, when you create an "A record" for example.com, you map that to an IP address, ex. 1.2.3.4. Because of that hostname -> IP mapping, some people refer to those records as "host …
IPv6 subnetting a /64 - what will break, and how to work around it?
Aug 18, 2015 · There is an Informational RFC, RFC 7421, Analysis of the 64-bit Boundary in IPv6 Addressing, which has a complete discussion of the /64 subnet, and what my go wrong when not …
Why is a /128 IPv6 address assigned via DHCPv6 in Ubuntu?
Jun 27, 2018 · I am testing the implementation of IPv6 in Ubuntu. My Ubuntu linux client correctly gets RA from server and configures an address in the advertised prefix. Next it gets another address via …
Why IPv6 addresses are not represented as dotted-decimal like IPv4
Feb 3, 2020 · The good old IPv4 notation uses 8-bit parts in base 10. The Q: why did IPv6 feel the need to make such a significant change from IPv4 addresses, and the need for such a huge address …
k8s loadbalancer service with externalTrafficPolicy=local passes ...
Jun 1, 2021 · The kubeadm documentation explicitly shows using a /112 as an IPv6 service cidr, so it would be surprising if that was a faulty configuration. If you try and set serviceSubnet to larger than a …