The DNS resource record used to contain IPv6 addresses of nodes is called the AAAA record (pronounced "quad-A"). This record maps a domain name to its corresponding IPv6 address, allowing systems to resolve domain names to their IPv6 addresses for proper routing and connectivity over the internet.
In IPv6, the same result can be achieved by sending a packet to the link-local all nodes multicast group at address ff02::1, which is analogous to IPv4 multicast to address 224.0.0.1.
IPv6 address has 2^128 address and IPv6 address is of 16 bytes and is represented in colon hex notation.
this protocol routes data packets between networks . IP address specify the locations of the source and destination nodes in the topology of routing system.
IN IPv6 we can find 128bits.
IPv6 uses a 128-bit address space
On a Linux machine, the MAC address for an interface can be found in the /sys/class/net/<interface>/address file, where <interface> is the name of the network interface (like eth0 or wlan0). Additionally, the MAC address can also be viewed using the ip link show <interface> command. For IPv6 specifically, while the MAC address itself doesn't change, it can be used to generate the Interface Identifier in the IPv6 address format.
The IPv6 equivalent of the IPv4 loopback address 127.0.0.1 is ::1. This address is used to refer to the local host in IPv6, similar to how 127.0.0.1 functions in IPv4. The "::" notation represents a shorthand for consecutive blocks of zeros in IPv6 addressing.
IPV6 only allows more nodes (~64K times as many) on the internet than the existing IPV4 does. It has no effect on security.
IPv6 address
To enable IPv6 forwarding and configure interface addressing on a Cisco router moving to an IPv6 environment, you would first enter global configuration mode and enable IPv6 routing with the command ipv6 unicast-routing. Next, you would access the specific interface using interface <interface-name> and assign an IPv6 address with the command ipv6 address <ipv6-address>/<prefix-length>. Finally, use the command no shutdown to activate the interface.
To verify TCP IPv6 protocols, you can ping the loopback address, which is ::1. This address is used to test the local network stack of the device itself. Additionally, you can ping a well-known IPv6 address, such as 2001:4860:4860::8888, which is a Google Public DNS server, to check connectivity over IPv6.
there are exactly340,282,366,920,938,463,463,374,607,431,768,211,456 ip address in the next generation internet protocol knows as IPv6 for more info visit: IPv6.com