Subj : IPV6 help
To   : Allen Prunty
From : Michiel van der Vlist
Date : Mon Mar 06 2017 00:38:05

Hello Allen,

On Sunday March 05 2017 17:22, you wrote to me:

 AP> Wireless LAN adapter Wireless Network Connection:

So that is your active interface.

Note: While in IPv4 an interface can have more than one IP address, it normally has only one. In IPv6 it is common that an interface has more than one IP address.


 AP>    Connection-specific DNS Suffix  . : attlocal.net
 AP>    IPv6 Address. . . . . . . . . . . : 2602:306:83c1:a710::40
 AP>    IPv6 Address. . . . . . . . . . . :
 AP> 2602:306:83c1:a710:916b:b400:7e4b:ca4
 AP>    Temporary IPv6 Address. . . . . . :
 AP> 2602:306:83c1:a710:446b:8c7b:c04d:2594
 AP>    Link-local IPv6 Address . . . . . : fe80::916b:b400:7e4b:ca4%11
 AP>    IPv4 Address. . . . . . . . . . . : 192.168.1.233
 AP>    Subnet Mask . . . . . . . . . . . : 255.255.255.0
 AP>    Default Gateway . . . . . . . . . : fe80::9662:69ff:fee2:7d20%11
 AP>                                        192.168.1.254


Let me fuck up the order...

 AP>    Link-local IPv6 Address . . . . . : fe80::916b:b400:7e4b:ca4%11

Every IPv6 interface as at least one address: the link local address. It is assigned automatically, even if there is no router and no internet connection. A link local address alaways starts with fe80:: The so called prefix. The last 64 bits (916b:b400:7e4b:ca4) is the suffix. It is derived from the MAC address.

 AP>    IPv6 Address. . . . . . . . . . . :
 AP> 2602:306:83c1:a710:916b:b400:7e4b:ca4

This is the so called SLAAC address. Note that the suffix is the same as that of the link local address. The 2602:306:83c1:a710 is the prefix. The prefix is broadcast by your router's "router advertisements" The SLAAC address of the interface is derived from the prefix advertised by the router and the suffix derived from the MAC address. This is the address that you could use as the address to link to a host name that can be used by others to access servers on that interface.

 AP>    IPv6 Address. . . . . . . . . . . : 2602:306:83c1:a710::40

This is probably an address assigned by DHCP6. I can't be sure without further information.

 AP>    Temporary IPv6 Address. . . . . . :
 AP> 2602:306:83c1:a710:446b:8c7b:c04d:2594

This is a so called Privacy Extension Address. Used for outgoing calls when PrivacyExtensiosn are enabled in Windows. Not to be used for incoming as a new one is generated every 24 hours.


Hope this helps


Cheers, Michiel

--- GoldED+/W32-MSVC 1.1.5-b20161221
 * Origin: he.net certified sage (2:280/5555)

.