Frequently Asked Questions of IPV6
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FAQ Execution
128 Bits.
Approximately 340 undecillion (2¹²⁸) addresses.
Hexadecimal format separated by colons.Example: 2001:0db8:85a3:0000:0000:8a2e:0370:7334
8 Blocks.
16 bits (4 hexadecimal digits per block).
Yes, leading zeros can be removed.Example: 0db8 → db8
It represents consecutive blocks of zeros.Example: 2001:db8::1.
Only one time.
Unicast, Multicast and Anyast.
Identifies a single interface.
Identifies a group of interfaces.
Assigned to multiple devices, but packet goes to nearest one.
No, IPv6 does not use broadcast.
::1
::
Used for communication within the same network segment.Range: FE80::/10.
Public IPv6 address routable on internet.
Private IPv6 address. Range: FC00::/7.
Generally no, NAT is not required.
Devices can configure themselves automatically
(SLAAC: Stateless Address Auto Configuration).
Yes, IPSec is built-in support.
Fixed 40 bytes.
Replaces ARP in IPv6.
1280 bytes.
Indicates network portion (e.g., /64: Its standard subnet size).
2⁶⁴ addresses.
Running IPv4 and IPv6 together.
Encapsulating IPv6 inside IPv4 and Translates IPv6 to IPv4.
OSPFv3, EIGRP for IPv6, BGP.
Yes, DHCPv6.
Provides additional info but not IP address.
Assigned by ISP.
Last 64 bits in /64 subnet.
Method to generate IPv6 interface ID from MAC address.
Better IPSec integration and no broadcast attacks.
Massive address space and improved routing efficiency.
