RHCE7--IPv6

IPV6 address a 128-digit number if you include TCP and UDP network ports after the IPV6 address, it is recommended that you put IPv6 in square brackets to differentiate between: [2001:db8:0:10::1]:80 IPV6 's standard subnet mask is '/64 ' Universal IPV6 address and network

IPV6 address or network	Use	Describe
:: 1/128	Local Host	IPV6 equivalent to 127.0.0.1/8, set on the loopback interface
::	Unspecified address	IPV6 equivalent to 0.0.0.0. For network services, this may indicate that it is listening on all configured IP addresses
::/0	Default route	IPV6 equivalent to 0.0.0.0/0. The default route in the routing table matches this network; the router for this network is the location where all traffic is sent without better routing.
2000::/3	Global Unicast Address	The "normal" IPV6 address is currently allocated by the IANA from that space. This equates to all networks ranging from 2000::/16 to 3FFF::/16.
Fd00::/8	Unique Local Address	IPV6 does not have a direct equivalent object for the RFC 1918 private address space, although this is very close. Sites can use these to self-allocate routable private IP address spaces in your organization. However, these networks are no longer available on the global Internet. The site must randomly select a/48 from this space, but it can divide the allocated space normally into a/64 network
Fe80::/64	Local Link Address	Each IPV6 interface automatically configures a local link address that is valid only on local links in that network.
Ff00::/8	Multicast	IPv6 that is equivalent to 224:0.0.0/4. Multicast is used for simultaneous transmission to multiple hosts and is particularly important in IPv6 because it has no broadcast address

add IPv6 connection[[email protected]~]# nmcli con add con-name enp0s8 type Ethernet ifname enp0s8 IP62001:d B8:0:1:: c000:207/ -Gw62001:d B8:0:1::1Ip4192.168.56.112/ -Gw4192.168.56.254Connection'Enp0s8'(0a19b495-2e49-44df-8b32-d79568428a10) successfully added. View [email protected]~]# NMCLI Conn Show enp0s8|grep Ipv6ipv6.method:manualipv6.dns:ipv6.dns-search:ipv6.addresses: {IP=2001:d B8:0:1:: c000:207/ -, GW =2001:d B8:0:1::1}ipv6.routes:ipv6.ignore-auto-Routes:noipv6.ignore-auto-Dns:noipv6.never-default: Noipv6.may-FAIL:YESIPV6.IP6-privacy:-1(unknown) ipv6.dhcp-hostname:--Modify (use mod) [[email protected]~]# nmcli con mod enp0s8 ipv6.address"2001:DB8:0:1::A00:1/64 2001:db8:0:1::1"add DNS (using+) [[email protected]~]# nmcli con mod enp0s8 +ipv6.dns2001:4860:4860::8888[[Email protected]~]# Ping2001:d B8:0:1:: c000:207Ping:unknown Host2001:d B8:0:1:: c000:207[[Email protected]~]# ping62001:d B8:0:1:: c000:207PING2001:d B8:0:1:: c000:207(2001:d B8:0:1:: c000:207) AboutData bytes -bytes from 2001:d B8:0:1:: c000:207: icmp_seq=1Ttl= -Time=0.025Ms -bytes from 2001:d B8:0:1:: c000:207: icmp_seq=2Ttl= -Time=0.050Ms -bytes from 2001:d B8:0:1:: c000:207: icmp_seq=3Ttl= -Time=0.036Ms^C---2001:d B8:0:1:: c000:207Ping Statistics---3Packets Transmitted,3Received0%packet loss, time 2000msrtt min/avg/max/mdev =0.025/0.037/0.050/0.010Ms

RHCE7--IPv6