::1
Tamara Dean
Network+ guide to networks
fifth edition
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 address has 2^128 address and IPv6 address is of 16 bytes and is represented in colon hex notation.
IPv6 uses a 128-bit address space
IN IPv6 we can find 128bits.
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
Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.​ smb
solicited-node multicast address
The loop back address for IPv6 is 0:0:0:0:0:0:0:1 or it is abbreviated as ::1
When we talk of global unicast addresses, we mean an address with global scope. That is, an address that is globally unique and can therefore be routed globally with no modification.