ANSWERED IPv6 address binding

[NinjaThunderbolt 4]

In software which allows you to bind to an IP, is it best to bind to the "fe80" address or the "fde6" address?

[OpenSourcerer 1467]

fde6:: is the subnet of AirVPN. fe80:: is most likely your local network.

[NinjaThunderbolt 4]

19 minutes ago, giganerd said:

fde6:: is the subnet of AirVPN. fe80:: is most likely your local network.

There are two different fe80 addresses though, one for the LAN and one for AirVPN.

[OpenSourcerer 1467]

fde6 is the one to bind to. The other is a SLAAC address (StateLess Address AutoConfiguration) usually made from the interface's MAC address and self-assigned always if IPv6 on an interface is enabled. Through this address a router will be asked for an IPv6 prefix (it's called the Router Advertisement), so that the machine can assign itself a Unique Global Address. If it fails, it fails, but the fe80:: address is kept, anyway.

[NinjaThunderbolt 4]

20 minutes ago, giganerd said:

fde6 is the one to bind to. The other is a SLAAC address (StateLess Address AutoConfiguration) usually made from the interface's MAC address and self-assigned always if IPv6 on an interface is enabled. Through this address a router will be asked for an IPv6 prefix (it's called the Router Advertisement), so that the machine can assign itself a Unique Global Address. If it fails, it fails, but the fe80:: address is kept, anyway.

OK thank you!