IPv4 - Internal Host Loopback Address Range


[IPv6](/ipv6) has reserved a special address to be used as the loopback address.  This address is used by a node to send an IPv6 packet to itself.  The reserved address is the following:

`0:0:0:0:0:0:0:1/128` also written as `::1/128`

The [IPv4](/ipv4) counterpart [IPv4 - Internal Host Loopback Address Range](/ipv4-internal-host-loopback-address-range) is defined as:

`127.0.0.0/8`

Links:

https://www.rfc-editor.org/rfc/rfc4291.html#page-9

https://forum.networklessons.com/t/ip-internet-protocol-version-4-for-ccna-r-s/1108/49?u=lagapides

IPv6 - loopback address

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IPv6 - loopback address

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