IPv6 Link Local Question

[sporanox]

what does it mean when there is a % at the end of an IPv6 address?

for example - fec0::213:72ff:fe7d:9a34%5

Thanks

[pgtech777]

what does it mean when there is a % at the end of an IPv6 address?

for example - fec0::213:72ff:fe7d:9a34%5

Thanks

I think I know it
this represents the interface known as zone id that is used as a way path to ping other computer. Suppose there are 2 nics attached at your own LOCAL computer.each your local nic ipv6 address will have a interface ending in %n say %3 or %4 attached to the ipv6 address. Now suppose you want to ping a remote computer named computer1 with ipv6 address say yyyy.

Then out of total 2 nics attached to your LOCAL computer,which ever has a path connected to be able to ping remote computer1, you will type ping command as ping followed by ipv6 address of remote computer1 followed by the interface id (zone id) of the LOCAL computer's nic that is attached,has path to be able to ping remote computer1

so if your local computer's nic1 does not have path to connect to remote comp but your other nic2 can connect to remote computer then you will type ping ipv6 address of remote computer1 % interface id of your local computer's nic2
in short by attaching interface id of your local nic to ipv6 address of remote computer, your local computer will know which nic attached to your LOCAL computer is to be used to ping the remote computer
hope it helps