In your previous mail you wrote:
While looking at the IPv6 code, I notice that I have two options in
recognizing my link local address as my own:
=> no, there is only one!
1) only fe80::my-id
=> this one.
2) or fe80:x:my-id, where x can be anything.
=> this is internally used by some implementations:
- you must not use it
- implementers should not use it
What should I do with incoming packet that has destination
fe80:x:my-id and 'x' != ::?
a) drop it
b) accept it as addressed to me
c) something else?
=> drop it (a) and send a bug report to implementers of the source.
Maybe some RFC actually tells this, but I don't remember seeing it
directly mentioned ...
=> RFC 1884 2.4.8 (on all types of interfaces where IPv6 transport have
been defined the n is 64):
| 10 |
| bits | n bits | 118-n bits |
+----------+-------------------------+----------------------------+
|1111111010| 0 | interface ID |
+----------+-------------------------+----------------------------+
Regards
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